Control and Coordination Class 10 Best MCQs

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Control and Coordination Class 10 Best MCQs (Multiple Choice Questions) to score full marks in your exams. Topics covered – Relationship between movement and life, Controlled movement and its connection to the environment, Need for control and coordination systems in multicellular organisms, Role of nervous and muscular tissues, Structure and function of a neuron, Transmission of nerve impulses, Sense organs and receptors, Concept of reflex actions, Difference between reflex actions and conscious actions, Structure and function of a reflex arc, Role of the spinal cord in reflex actions, Central nervous system and many more..

Control and Coordination Class 10 Best MCQs

1.Animals – Nervous System – Control and Coordination Class 10 Best MCQs

1300 MCQ Class 10 Science

1300 MCQ Class 10 Science

500 MCQ Class 10 Polity

500 MCQ Class 10 Polity

500 MCQ Class 10 Economics

500 MCQ Class 10 Economics

700 MCQ Class 10 Geography

700 MCQ Class 10 Geography

500 MCQ Class 10 History

500 MCQ Class 10 History

Control and Coordination Class 10 Best MCQs

Introduction

Question 1: How is movement related to life?

A. All living things move.

B. Movement indicates a response to the environment.

C. Only animals move, not plants

D. Movement is essential for survival.

Answer
Answer: B. Movement is often seen as a response to changes in the environment, a characteristic of living organisms.

Question 2: What is the significance of controlled movement in living organisms?

A. It helps them avoid danger

B. It allows them to find food

C. It enables them to interact with their environment

D. All of the above

Answer
Answer: D. Controlled movement is crucial for survival and interaction with the surroundings.

Question 3: Why do multicellular organisms require control and coordination systems?

A. To maintain homeostasis

B. To respond to stimuli

C. To regulate various bodily functions

D. All of the above

Answer
Answer: D. Multicellular organisms need these systems to integrate and manage their complex functions.

Control and Coordination Class 10 Best MCQs

Nervous System

Question 4: What are the primary tissues responsible for control and coordination in animals?

A. Nervous and muscular tissues

B. Epithelial and connective tissues

C. Blood and lymph tissues

D. Bone and cartilage tissues

Answer
Answer: A. Nervous tissue transmits signals, and muscular tissue responds by contracting or relaxing.

Question 5: What is the basic structural and functional unit of the nervous system?

A. Neuron

B. Nephron

C. Axon

D. Dendrite

Answer
Answer: A. Neurons are specialized cells that transmit electrical and chemical signals.

Control and Coordination Class 10 Best MCQs

Question 6: How are nerve impulses transmitted?

A. Through electrical signals only

B. Through chemical signals only

C. Through both electrical and chemical signals

D. Through hormonal signals

Answer
Answer: C. Nerve impulses involve electrical signals within a neuron and chemical signals at synapses.

Question 7: Which sense organs are associated with gustatory and olfactory receptors, respectively?

A. Tongue and nose

B. Eyes and ears

C. Skin and muscles

D. Heart and lungs

Answer
Answer: A. Gustatory receptors are responsible for taste (tongue), and olfactory receptors for smell (nose).

Question 8: What is the function of a receptor in the nervous system?

A. To carry messages to the brain

B. To detect changes in the environment

C. To control muscle movement

D. To produce hormones

Answer
Answer: B. Receptors are specialized nerve endings that detect stimuli like light, sound, touch, etc.

Control and Coordination Class 10 Best MCQs

Reflex Actions

Question 9: What is a reflex action?

A. A voluntary response to a stimulus

B. An involuntary and rapid response to a stimulus

C. A slow and deliberate response to a stimulus

D. A learned behavior

Answer
Answer: B. Reflex actions are automatic, quick responses that help protect the body from harm.

Question 10: How do reflex actions differ from conscious actions?

A. Reflex actions are faster

B. Reflex actions do not involve the brain

C. Reflex actions are involuntary

D. All of the above

Answer
Answer: D. Reflex actions are rapid, involuntary responses that primarily involve the spinal cord, while conscious actions are deliberate and involve the brain.

Question 11: What is the pathway of a reflex action called?

A. Reflex arc

B. Nerve impulse

C. Synapse

D. Neuron

Answer
Answer: A. The reflex arc is the neural pathway that mediates a reflex action.

Question 12: What is the role of the spinal cord in reflex actions?

A. It processes sensory information

B. It initiates voluntary movements

C. It acts as a relay center for reflex actions

D. It produces hormones

Answer
Answer: C. The spinal cord can process simple reflexes without involving the brain, enabling quick responses.

Question 13: Which of the following is an example of a reflex action?

A. Blinking your eyes when something flies towards them

B. Kicking a ball

C. Raising your hand to answer a question

D. Writing your name

Answer
Answer: A. Blinking in response to a sudden stimulus is a reflex action.

Control and Coordination Class 10 Best MCQs

Human Brain

Question 14: What constitutes the central nervous system (CNS)?

A. Brain and spinal cord

B. Cranial and spinal nerves

C. Sense organs and muscles

D. Heart and lungs

Answer
Answer: A. The brain and spinal cord are the main components of the CNS, responsible for processing and integrating information.

Question 15: What is the function of the peripheral nervous system (PNS)?

A. To connect the CNS to the rest of the body

B. To process sensory information

C. To initiate voluntary movements

D. To produce hormones

Answer
Answer: A. The PNS comprises nerves that carry information to and from the CNS.

Question 16: Which actions are under conscious control?

A. Voluntary actions

B. Involuntary actions

C. Reflex actions

D. None of the above

Answer
Answer: A. Voluntary actions are those that we consciously decide to perform.

Question 17: What are the three major parts of the human brain?

A. Cerebrum, cerebellum, and brainstem

B. Fore-brain, mid-brain, and hind-brain

C. Frontal lobe, parietal lobe, and occipital lobe

D. Sensory areas, association areas, and motor areas

Answer
Answer: B. The human brain is broadly divided into the fore-brain, mid-brain, and hind-brain.

Question 18: Which part of the brain is responsible for thinking and decision-making?

A. Fore-brain

B. Mid-brain

C. Hind-brain

D. Spinal cord

Answer
Answer: A. The fore-brain is the most developed part of the brain and is associated with higher-order functions like thinking, memory, and perception.

Question 19: Where are sensory areas, association areas, and motor areas located in the brain?

A. Fore-brain

B. Mid-brain

C. Hind-brain

D. Spinal cord

Answer
Answer: A. These areas are primarily located in the fore-brain and are responsible for processing sensory information, integrating it, and initiating motor responses.

Question 20: Which parts of the brain control involuntary actions?

A. Fore-brain and mid-brain

B. Mid-brain and hind-brain

C. Hind-brain and spinal cord

D. Fore-brain and spinal cord

Answer
Answer: B. The mid-brain and hind-brain control vital functions like breathing, heart rate, and digestion.

Control and Coordination Class 10 Best MCQs

Question 21: What is the function of the medulla oblongata?

A. Controls voluntary movements

B. Regulates balance and coordination

C. Controls involuntary actions like breathing and heart rate

D. Processes sensory information

Answer
Answer: C. The medulla oblongata is a part of the hind-brain that controls vital involuntary functions.

Question 22: Which part of the brain is responsible for maintaining posture and balance?

A. Cerebrum

B. Cerebellum

C. Medulla oblongata

D. Spinal cord

Answer
Answer: B. The cerebellum, located in the hind-brain, coordinates muscle movements and maintains balance.

Question 23: Which part of the brain is responsible for precision of voluntary actions?

A. Cerebrum

B. Cerebellum

C. Medulla oblongata

D. Spinal cord

Answer
Answer: B. The cerebellum coordinates muscle movements for precise and smooth voluntary actions.

Question 24: The sensation of feeling full is because of a centre associated with hunger. This centre is located in which part of the brain?

A. Fore-brain

B. Mid-brain

C. Hind-brain

D. Spinal cord

Answer
Answer: A. The fore-brain houses various centers, including those associated with hunger and satiety.

Control and Coordination Class 10 Best MCQs

Protection of Nervous Tissue

Question 25: How is the brain protected?

A. By the skull

B. By cerebrospinal fluid

C. By meninges (protective membranes)

D. All of the above

Answer
Answer: D. The brain is protected by the bony skull, cerebrospinal fluid that cushions it, and meninges that provide additional layers of protection.

Question 26: What is the function of the vertebral column?

A. To protect the brain

B. To protect the spinal cord

C. To support the body

D. To produce blood cells

Answer
Answer: B. The vertebral column, or backbone, encloses and protects the delicate spinal cord.

Question 27: What is the role of cerebrospinal fluid (CSF)?

A. It provides nutrients to the brain

B. It removes waste products from the brain

C. It acts as a shock absorber for the brain

D. All of the above

Answer
Answer: D. CSF serves multiple functions, including providing nourishment, removing waste, and cushioning the brain.

Question 28: Which of the following structures provides the first line of defense for the brain?

A. Skull

B. Cerebrospinal fluid

C. Meninges

D. Vertebral column

Answer
Answer: A. The skull is the outermost protective layer for the brain.

Control and Coordination Class 10 Best MCQs

Question 29: The delicate spinal cord is protected by:

A. The skull

B. The rib cage

C. The vertebral column

D. The pelvis

Answer
Answer: C. The vertebral column provides a bony enclosure for the spinal cord, safeguarding it from injury.

Question 30: Which of the following is NOT a function of the meninges?

A. Protecting the brain from physical trauma

B. Providing a pathway for blood vessels

C. Producing cerebrospinal fluid

D. Anchoring the brain within the skull

Answer
Answer: C. Cerebrospinal fluid is produced by specialized structures within the brain, not the meninges.

Question 31: The fluid-filled balloon that surrounds the brain helps to:

A. Provide nutrients to the brain

B. Absorb shocks and protect the brain from injury

C. Regulate the temperature of the brain

D. Produce electrical signals

Answer
Answer: B. The fluid-filled balloon, containing cerebrospinal fluid, acts as a cushion, reducing the impact of any blows or sudden movements.

Question 32: Which of the following statements about the protection of the brain is INCORRECT?

A. The skull is a hard, bony structure that encases the brain

B. The meninges are three layers of membranes that cover the brain

C. Cerebrospinal fluid fills the space between the skull and the brain

D. The vertebral column protects the brain from injury

Answer
Answer: D. The vertebral column protects the spinal cord, not the brain.

Question 33: The main function of the bony structures surrounding the central nervous system is to:

A. Provide support for the body

B. Produce blood cells

C. Protect the delicate nervous tissue from damage

D. Regulate body temperature

Answer
Answer: C. The skull and vertebral column primarily serve a protective function for the brain and spinal cord, respectively.

Question 34: Which of the following is an example of a protective mechanism for the nervous system?

A. Reflex actions

B. The blood-brain barrier

C. The presence of cerebrospinal fluid

D. All of the above

Answer
Answer: D. All the mentioned options contribute to protecting the nervous system in different ways.

Question 35: The blood-brain barrier is a specialized structure that:

A. Prevents harmful substances from entering the brain

B. Allows all substances to freely pass into the brain

C. Regulates the flow of blood to the brain

D. Produces cerebrospinal fluid

Answer
Answer: A. The blood-brain barrier selectively controls the passage of molecules from the blood into the brain, protecting it from potentially harmful substances.

Control and Coordination Class 10 Best MCQs

Nervous Tissue and Action

Question 36: How does nervous tissue cause muscle action?

A. By releasing hormones

B. By sending electrical impulses

C. By changing its shape

D. By producing enzymes

Answer
Answer: B. Nervous tissue transmits electrical impulses to muscle fibers, triggering their contraction.

Question 37: What is the role of specialized proteins in muscle contraction?

A. They provide energy for contraction

B. They change their shape and arrangement in response to nerve impulses

C. They produce electrical signals

D. They transport oxygen to the muscles

Answer
Answer: B. Specialized proteins like actin and myosin interact and slide past each other, leading to muscle fiber shortening.

Question 38: Which type of muscle is responsible for voluntary movements like walking and talking?

A. Skeletal muscle

B. Smooth muscle

C. Cardiac muscle

D. None of the above

Answer
Answer: A. Skeletal muscles are attached to bones and are under conscious control.

Question 39: Which type of muscle is found in the walls of internal organs like the stomach and intestines?

A. Skeletal muscle

B. Smooth muscle

C. Cardiac muscle

D. None of the above

Answer
Answer: B. Smooth muscles are involuntary muscles found in the walls of organs, controlling functions like digestion and blood vessel constriction.

Question 40: Which type of muscle is responsible for the rhythmic contractions of the heart?

A. Skeletal muscle

B. Smooth muscle

C. Cardiac muscle

D. None of the above

Answer
Answer: C. Cardiac muscle is unique to the heart and has the ability to generate its own electrical impulses for continuous contractions.

Control and Coordination Class 10 Best MCQs

Question 41: Which of the following is an example of an involuntary muscle action?

A. Breathing

B. Lifting a weight

C. Writing

D. Kicking a ball

Answer
Answer: A. Breathing is controlled by involuntary muscles, ensuring continuous respiration even when we are not consciously thinking about it.

Question 42: The connection between a motor neuron and a muscle fiber is called:

A. Synapse

B. Neuromuscular junction

C. Reflex arc

D. Axon terminal

Answer
Answer: B. The neuromuscular junction is the specialized synapse where a motor neuron communicates with a muscle fiber.

Question 43: Which of the following statements about muscle contraction is FALSE?

A. Muscle contraction requires energy

B. Muscle contraction involves the interaction of specialized proteins

C. Muscle contraction is always voluntary

D. Muscle contraction results in the shortening of muscle fibers

Answer
Answer: C. Muscle contraction can be both voluntary (controlled by conscious thought) and involuntary (occurring automatically).

Question 44: The ability of muscles to shorten and generate force is due to:

A. The presence of specialized proteins

B. The release of hormones

C. The flow of blood

D. The presence of nerve cells

Answer
Answer: A. The unique arrangement and interaction of proteins within muscle fibers enable them to contract.

Question 45: Which of the following is NOT a characteristic of skeletal muscle?

A. Striated appearance

B. Voluntary control

C. Found in the walls of internal organs

D. Attached to bones

Answer
Answer: C. Smooth muscles, not skeletal muscles, are found in the walls of internal organs.

Question 46: The primary function of muscle tissue is to:

A. Produce hormones

B. Transmit nerve impulses

C. Generate movement

D. Store energy

Answer
Answer: C. Muscle tissue is specialized for contraction, which leads to various types of movement in the body.

2.Coordination in Plants – Control and Coordination Class 10 Best MCQs

500 MCQ Class 10 History

500 MCQ Class 10 History

Control and Coordination Class 10 Best MCQs

Introduction

Question 47: Do plants have a nervous system or muscles?

A. Yes, they have both

B. No, they have neither

C. They have a nervous system but no muscles

D. They have muscles but no nervous system

Answer
Answer: B. Plants lack the specialized nervous and muscular systems found in animals.

Question 48: How do plants respond to stimuli?

A. Through electrical impulses

B. Through hormonal signals and growth movements

C. Through conscious thought

D. They do not respond to stimuli

Answer
Answer: B. Plants utilize chemical signals (hormones) and changes in growth patterns to respond to their environment.

Question 49: Which of the following is an example of a growth-dependent movement in plants?

A. The folding of leaves in a sensitive plant

B. The bending of a shoot towards light

C. The opening and closing of flowers

D. The movement of pollen grains

Answer
Answer: B. The bending of a shoot towards light is a result of differential growth in response to the stimulus.

Question 50: Which of the following is an example of a growth-independent movement in plants?

A. The twining of a tendril around a support

B. The closing of leaves in a Venus flytrap

C. The wilting of leaves

D. The growth of roots downwards

Answer
Answer: B. The rapid closure of leaves in a Venus flytrap is a growth-independent movement triggered by touch.

Control and Coordination Class 10 Best MCQs

Immediate Response to Stimulus

Question 51: Which plant is known for its rapid leaf folding in response to touch?

A. Sunflower

B. Mimosa pudica (sensitive plant)

C. Venus flytrap

D. Pitcher plant

Answer
Answer: B. Mimosa pudica exhibits a quick drooping of leaves when touched, a thigmonastic movement.

Question 52: How does a sensitive plant transmit information about touch?

A. Through electrical signals

B. Through chemical signals

C. Through a combination of electrical and chemical signals

D. Through changes in water pressure

Answer
Answer: C. The sensitive plant uses a combination of electrical and chemical signals to transmit information about touch.

Question 53: What causes the movement of leaves in a sensitive plant?

A. Changes in the concentration of hormones

B. Changes in the amount of water in specific cells

C. Contraction of muscle-like fibers

D. Growth of new cells

Answer
Answer: B. Changes in water content within certain cells lead to swelling or shrinking, causing the leaves to move.

Question 54: The rapid movement of leaves in a sensitive plant is an example of:

A. Tropism

B. Nastic movement

C. Growth movement

D. Turgor movement

Answer
Answer: B. Nastic movements are non-directional responses to stimuli, like the folding of leaves in Mimosa pudica.

Question 55: Which of the following statements about the mechanism of information transfer in plants is TRUE?

A. It is identical to the nervous system in animals

B. It involves specialized tissues for conduction

C. It relies solely on electrical signals

D. It can involve both electrical and chemical signals

Answer
Answer: D. Plants utilize a combination of electrical and chemical signals for communication, although they lack specialized nerve tissues.

Control and Coordination Class 10 Best MCQs

Movement Due to Growth

Question 56: What enables a pea plant’s tendrils to coil around a support?

A. Rapid growth on the side touching the support

B. Slower growth on the side touching the support

C. Equal growth on both sides of the tendril

D. The presence of specialized muscles in the tendril

Answer
Answer: B. Tendrils exhibit differential growth, with the side not in contact with the support growing faster, causing the tendril to curl around the object.

Question 57: What is the term for directional growth movements in plants in response to stimuli?

A. Tropism

B. Nastic movement

C. Photoperiodism

D. Vernalization

Answer
Answer: A. Tropism refers to the growth of a plant in a particular direction in response to an external stimulus.

Question 58: The growth of a plant shoot towards light is an example of:

A. Phototropism

B. Geotropism

C. Hydrotropism

D. Chemotropism

Answer
Answer: A. Phototropism is the directional growth of a plant in response to light.

Question 59: The growth of roots downwards into the soil is an example of:

A. Phototropism

B. Geotropism

C. Hydrotropism

D. Chemotropism

Answer
Answer: B. Geotropism is the growth of a plant in response to gravity, with roots typically showing positive geotropism (growing downwards) and shoots showing negative geotropism (growing upwards).

Question 60: The growth of roots towards a water source is an example of:

A. Phototropism

B. Geotropism

C. Hydrotropism

D. Chemotropism

Answer
Answer: C. Hydrotropism is the directional growth of plant roots in response to a moisture gradient.

Control and Coordination Class 10 Best MCQs

Question 61: The growth of a pollen tube towards the ovule is an example of:

A. Phototropism

B. Geotropism

C. Hydrotropism

D. Chemotropism

Answer
Answer: D. Chemotropism is the growth of a plant in response to a chemical stimulus, such as the growth of a pollen tube towards the ovule due to chemical attractants.

Question 62: Which of the following statements about tropism is FALSE?

A. It is a directional growth movement

B. It can be either towards or away from the stimulus

C. It is independent of growth

D. It helps plants adapt to their environment

Answer
Answer: C. Tropism is inherently dependent on growth, as it involves the plant growing in a specific direction.

Question 63: The differential growth observed in tendrils and shoots bending towards light is primarily due to:

A. Unequal distribution of water

B. Unequal distribution of hormones

C. Unequal distribution of nutrients

D. Unequal distribution of sunlight

Answer
Answer: B. Plant hormones, like auxin, play a crucial role in regulating differential growth, leading to the bending or coiling movements observed in plants.

Question 64: Which of the following is NOT a type of tropism?

A. Thigmotropism (response to touch)

B. Thermotropism (response to temperature)

C. Heliotropism (response to the sun’s movement)

D. Photoperiodism (response to day length)

Answer
Answer: D. Photoperiodism is a physiological response to the relative lengths of day and night, influencing processes like flowering, but it is not a type of tropism.

Control and Coordination Class 10 Best MCQs

Plant Hormones

Question 65: What are plant hormones?

A. Chemical signals that coordinate plant growth and development

B. Electrical impulses that transmit information in plants

C. Nutrients that provide energy for plant growth

D. Enzymes that catalyze reactions in plants

Answer
Answer: A. Plant hormones are chemical messengers that regulate various aspects of plant growth, development, and responses to the environment.

Control and Coordination Class 10 Best MCQs

Question 66: Which plant hormone is responsible for cell elongation and plays a role in phototropism?

A. Auxin

B. Gibberellin

C. Cytokinin

D. Abscisic acid

Answer
Answer: A. Auxin promotes cell elongation and is involved in the bending of shoots towards light.

Question 67: Which plant hormone stimulates stem growth?

A. Auxin

B. Gibberellin

C. Cytokinin

D. Abscisic acid

Answer
Answer: B. Gibberellins are growth-promoting hormones that stimulate stem elongation and other developmental processes.

Control and Coordination Class 10 Best MCQs

Question 68: Which plant hormone promotes cell division?

A. Auxin

B. Gibberellin

C. Cytokinin

D. Abscisic acid

Answer
Answer: C. Cytokinins are essential for cell division and differentiation in plants.

Question 69: Which plant hormone inhibits growth and is involved in processes like leaf wilting?

A. Auxin

B. Gibberellin

C. Cytokinin

D. Abscisic acid

Answer
Answer: D. Abscisic acid acts as a growth inhibitor and plays a role in stress responses like dormancy and stomatal closure.

Control and Coordination Class 10 Best MCQs

Question 70: Which of the following statements about plant hormones is FALSE?

A. They are produced in specific parts of the plant

B. They act on target cells away from their site of production

C. They are transported through the plant’s vascular system

D. They are always growth-promoting

Answer
Answer: D. Plant hormones can have diverse effects, including promoting growth, inhibiting growth, or regulating other physiological processes.

Control and Coordination Class 10 Best MCQs

Question 71: The bending of a plant shoot towards light is caused by:

A. The accumulation of auxin on the shaded side of the shoot

B. The accumulation of auxin on the illuminated side of the shoot

C. The destruction of auxin on the shaded side of the shoot

D. The destruction of auxin on the illuminated side of the shoot

Answer
Answer: A. Auxin accumulates on the shaded side, causing those cells to elongate faster and resulting in the shoot bending towards the light.

Question 72: Which hormone is responsible for the ripening of fruits?

A. Auxin

B. Gibberellin

C. Cytokinin

D. Ethylene

Answer
Answer: D. Ethylene is a gaseous hormone that promotes fruit ripening and other senescence processes.

Control and Coordination Class 10 Best MCQs

Question 73: Which hormone helps plants cope with stress conditions like drought?

A. Auxin

B. Gibberellin

C. Cytokinin

D. Abscisic acid

Answer
Answer: D. Abscisic acid is involved in stress responses, triggering stomatal closure to reduce water loss and promoting seed dormancy.

Question 74: The process of seed germination is promoted by:

A. Auxin

B. Gibberellin

C. Cytokinin

D. Abscisic acid

Answer
Answer: B. Gibberellins break seed dormancy and stimulate germination by promoting embryo growth and the mobilization of stored nutrients.

3.Hormones in Animals – Control and Coordination Class 10 Best MCQs

700 MCQ Class 10 Geography

700 MCQ Class 10 Geography

Control and Coordination Class 10 Best MCQs

Introduction

Question 75: How do animals achieve chemical coordination?

A. Through the nervous system

B. Through the endocrine system

C. Through both the nervous and endocrine systems

D. Through muscle contractions

Answer
Answer: B. The endocrine system, comprising various glands that secrete hormones, is responsible for chemical coordination in animals.

Control and Coordination Class 10 Best MCQs

Question 76: What are hormones?

A. Electrical signals that travel through nerves

B. Chemical messengers that travel through the bloodstream

C. Enzymes that catalyze reactions in the body

D. Nutrients that provide energy

Answer
Answer: B. Hormones are chemical signals produced by endocrine glands, transported via the blood to target organs where they exert specific effects.

Question 77: Which system in animals is responsible for producing and secreting hormones?

A. Nervous system

B. Endocrine system

C. Circulatory system

D. Respiratory system

Answer
Answer: B. The endocrine system is a network of glands that secrete hormones directly into the bloodstream.

Control and Coordination Class 10 Best MCQs

Question 78: What is the main function of the endocrine system?

A. To control and coordinate bodily functions

B. To transmit nerve impulses

C. To produce blood cells

D. To filter waste products

Answer
Answer: A. The endocrine system regulates various physiological processes like growth, metabolism, and reproduction through hormonal signals.

Question 79: Which of the following statements about hormones is FALSE?

A. They are produced by endocrine glands

B. They travel through the bloodstream

C. They act on specific target organs

D. They are always proteins

Answer
Answer: D. Hormones can be of various chemical natures, including proteins, steroids, and amines.

Control and Coordination Class 10 Best MCQs

Adrenaline

Question 80: Which gland secretes adrenaline?

A. Pituitary gland

B. Thyroid gland

C. Adrenal gland

D. Pancreas

Answer
Answer: C. Adrenaline is secreted by the adrenal glands, located on top of the kidneys.

Question 81: What is the primary role of adrenaline in the body?

A. Regulates growth and development

B. Controls blood sugar levels

C. Prepares the body for a fight-or-flight response

D. Stimulates metabolism

Answer
Answer: C. Adrenaline triggers physiological changes that help the body respond to stressful or threatening situations. (Control and Coordination Class 10 MCQs)

Control and Coordination Class 10 Best MCQs

Question 82: Which of the following is NOT an effect of adrenaline?

A. Increased heart rate

B. Dilated pupils

C. Decreased breathing rate

D. Increased blood flow to muscles

Answer
Answer: C. Adrenaline increases the breathing rate to supply more oxygen to the body. (Control and Coordination Class 10 MCQs)

Question 83: Adrenaline is released in response to:

A. Stress or fear

B. Relaxation

C. Sleep

D. Digestion

Answer
Answer: A. The body releases adrenaline when it perceives a threat or challenge, preparing it to either fight or flee. (Control and Coordination Class 10 MCQs)

Control and Coordination Class 10 Best MCQs

Question 84: The “fight-or-flight” response is associated with which hormone?

A. Insulin

B. Thyroxine

C. Adrenaline

D. Growth hormone

Answer
Answer: C. Adrenaline is the key hormone that mediates the physiological changes during the fight-or-flight response. (Control and Coordination Class 10 MCQs)

Question 85: Which of the following organs is NOT a target organ of adrenaline?

A. Heart

B. Lungs

C. Blood vessels

D. Pancreas

Answer
Answer: D. While adrenaline affects various organs, the pancreas is not a primary target organ. (Control and Coordination Class 10 MCQs)

Control and Coordination Class 10 Best MCQs

Other Hormones and Their Functions

Question 86: Which hormone regulates metabolism in the body?

A. Thyroxine

B. Insulin

C. Growth hormone

D. Adrenaline

Answer
Answer: A. Thyroxine, produced by the thyroid gland, controls the rate of metabolism, affecting energy expenditure and growth. (Control and Coordination Class 10 MCQs)

Control and Coordination Class 10 Best MCQs

Question 87: Which hormone is responsible for regulating growth and development?

A. Thyroxine

B. Insulin

C. Growth hormone

D. Adrenaline

Answer
Answer: C. Growth hormone, secreted by the pituitary gland, stimulates growth and development of various tissues and organs. (Control and Coordination Class 10 MCQs)

Question 88: Which hormones are associated with puberty in males and females, respectively?

A. Testosterone and estrogen

B. Insulin and glucagon

C. Thyroxine and adrenaline

D. Growth hormone and cortisol

Answer
Answer: A. Testosterone is the primary male sex hormone, while estrogen is the primary female sex hormone, both playing key roles in pubertal development. (Control and Coordination Class 10 MCQs)

Control and Coordination Class 10 Best MCQs

Question 89: Which hormone regulates blood sugar levels?

A. Thyroxine

B. Insulin

C. Growth hormone

D. Adrenaline

Answer
Answer: B. Insulin, produced by the pancreas, helps regulate blood glucose levels by promoting glucose uptake by cells. (Control and Coordination Class 10 MCQs)

Question 90: Which gland is responsible for producing insulin?

A. Pituitary gland

B. Thyroid gland

C. Adrenal gland

D. Pancreas

Answer
Answer: D. The pancreas houses clusters of cells called islets of Langerhans, which produce hormones like insulin and glucagon. (Control and Coordination Class 10 MCQs)

Control and Coordination Class 10 Best MCQs

Question 91: What is the condition called when the body doesn’t produce enough insulin or doesn’t respond to it properly?

A. Goiter

B. Dwarfism

C. Gigantism

D. Diabetes

Answer
Answer: D. Diabetes is a metabolic disorder characterized by high blood sugar levels due to insufficient insulin production or action. (Control and Coordination Class 10 MCQs)

Question 92: Which hormone is responsible for the “fight-or-flight” response?

A. Adrenaline

B. Thyroxine

C. Insulin

D. Growth hormone

Answer
Answer: A. Adrenaline triggers the physiological changes associated with the fight-or-flight response, preparing the body to deal with a perceived threat. (Control and Coordination Class 10 MCQs)

Control and Coordination Class 10 Best MCQs

Question 93: Which hormone is essential for the development of male secondary sexual characteristics?

A. Estrogen

B. Testosterone

C. Insulin

D. Thyroxine

Answer
Answer: B. Testosterone promotes the development of male secondary sexual characteristics like facial hair, deepening of the voice, and muscle growth. (Control and Coordination Class 10 MCQs)

Question 94: A deficiency of growth hormone during childhood can lead to:

A. Dwarfism

B. Gigantism

C. Diabetes

D. Goiter

Answer
Answer: A. Insufficient growth hormone production during childhood results in stunted growth, leading to dwarfism. (Control and Coordination Class 10 MCQs)

Control and Coordination Class 10 Best MCQs  

Question 95: An excess of growth hormone during childhood can lead to:

A. Dwarfism

B. Gigantism

C. Diabetes

D. Goiter

Answer
Answer: B. Excessive growth hormone production during childhood causes abnormal growth, leading to gigantism. (Control and Coordination Class 10 MCQs)

Question 96: Which of the following hormones is NOT produced by the pituitary gland?

A. Growth hormone

B. Thyroxine

C. Follicle-stimulating hormone (FSH)

D. Luteinizing hormone (LH)

Answer
Answer: B. Thyroxine is produced by the thyroid gland, not the pituitary gland. (Control and Coordination Class 10 MCQs)

Control and Coordination Class 10 Best MCQs

Feedback Mechanisms

Question 97: What is the purpose of feedback mechanisms in hormone regulation?

A. To maintain a constant level of hormones in the blood

B. To control the timing and amount of hormone release

C. To stimulate the production of more hormones

D. To inhibit the production of hormones

Answer
Answer: B. Feedback mechanisms ensure that hormones are released in appropriate amounts and at the right times to maintain homeostasis. (Control and Coordination Class 10 MCQs)

Question 98: Which of the following is an example of a negative feedback mechanism in hormone regulation?

A. The release of oxytocin during childbirth

B. The release of adrenaline during a stressful situation

C. The regulation of blood sugar levels by insulin and glucagon

D. The release of growth hormone during puberty

Answer
Answer: C. When blood sugar rises, insulin is released to lower it; when blood sugar falls, glucagon is released to raise it. This is a classic example of negative feedback.

Control and Coordination Class 10 Best MCQs

Question 99: How does the body regulate the release of insulin?

A. Based on blood sugar levels

B. Based on stress levels

C. Based on the time of day

D. Based on body temperature

Answer
Answer: A. The pancreas monitors blood glucose levels and adjusts insulin secretion accordingly. (Control and Coordination Class 10 MCQs)

Question 100: Which of the following statements about feedback mechanisms is TRUE?

A. They always involve positive feedback

B. They are essential for maintaining homeostasis

C. They only regulate hormone levels, not other bodily functions

D. They are not influenced by external factors

Answer
Answer: B. Feedback mechanisms are crucial for maintaining a stable internal environment (homeostasis) by regulating various physiological processes, including hormone levels. (Control and Coordination Class 10 MCQs)

Read Also: Resources and Development Class 10 MCQs – Best 100 MCQs

3.Control and Coordination Class 10 Important Questions and Answers

What is the fundamental difference between the nervous and endocrine systems in terms of coordination?

The nervous system uses electrical impulses for rapid, short-term coordination, while the endocrine system employs hormones for slower, longer-lasting effects.

How do reflex actions differ from voluntary actions?

Reflex actions are involuntary, rapid responses to stimuli, whereas voluntary actions are deliberate and involve conscious decision-making.

What are the primary functions of the fore-brain, mid-brain, and hind-brain?

The fore-brain is responsible for higher-order functions like thinking and perception. The mid-brain controls visual and auditory reflexes. The hind-brain regulates vital functions like breathing and heart rate, and coordinates movement and balance.

How does the body protect the delicate nervous tissue of the brain and spinal cord?

The brain is shielded by the skull and cerebrospinal fluid, while the spinal cord is protected by the vertebral column.

What is the mechanism behind muscle movement in animals?

Muscle movement occurs due to the contraction of muscle fibers, triggered by nerve impulses and involving the interaction of specialized proteins.

How do plants coordinate their responses to the environment without a nervous system?

Plants utilize hormones and growth movements to respond to stimuli like light, gravity, and touch.

What is the role of auxin in plant growth and movement?

Auxin promotes cell elongation and plays a crucial role in phototropism, causing plants to bend towards light.

What is the significance of the fight-or-flight response, and which hormone is responsible for it?

The fight-or-flight response prepares the body to deal with threats. Adrenaline triggers this response, leading to increased heart rate, rapid breathing, and heightened alertness.

How do feedback mechanisms regulate hormone levels in the body?

Feedback mechanisms ensure that hormone levels are maintained within a narrow range. For instance, high blood sugar triggers insulin release, while low blood sugar stimulates glucagon release.

What are some common disorders associated with hormonal imbalances?

Diabetes (imbalance of insulin), growth disorders (imbalance of growth hormone), and thyroid problems (imbalance of thyroxine) are examples of disorders arising from hormonal irregularities.

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