Extra 40 multiple-choice questions (MCQs) with answers from the chapter:6 "Control and Coordination" for Class 10 CBSE Science:
Control and Coordination - MCQs
What is the structural and functional unit of the nervous system?
a) Neuron
b) Brain
c) Spinal cord
d) Nerve
Answer:
a) Neuron
Which part of the brain controls voluntary actions?
a) Cerebrum
b) Cerebellum
c) Medulla
d) Pons
Answer:
a) Cerebrum
Reflex action is controlled by which part of the nervous system?
a) Brain
b) Spinal cord
c) Cerebellum
d) Cerebrum
Answer:
b) Spinal cord
What is the function of the cerebellum?
a) Controls involuntary actions
b) Controls voluntary actions
c) Maintains posture and balance
d) Controls emotions
Answer:
c) Maintains posture and balance
Which part of the brain controls involuntary actions like heartbeat and breathing?
a) Cerebrum
b) Cerebellum
c) Medulla oblongata
d) Spinal cord
Answer:
c) Medulla oblongata
Which type of neuron carries impulses from sensory organs to the central nervous system?
a) Motor neuron
b) Sensory neuron
c) Interneuron
d) Reflex neuron
Answer:
b) Sensory neuron
What is the gap between two neurons called?
a) Axon
b) Dendrite
c) Synapse
d) Neurilemma
Answer:
c) Synapse
What is the function of motor neurons?
a) Carry messages from the brain to muscles
b) Carry messages from receptors to the brain
c) Process information in the brain
d) Detect stimuli
Answer:
a) Carry messages from the brain to muscles
The nervous system is divided into how many main parts?
a) 2
b) 3
c) 4
d) 5
Answer:
a) 2 (Central Nervous System and Peripheral Nervous System)
Which of the following is NOT a part of the human nervous system?
a) Brain
b) Spinal cord
c) Heart
d) Nerves
Answer:
c) Heart
Which of the following is an example of a reflex action?
a) Writing
b) Typing
c) Sneezing
d) Speaking
Answer:
c) Sneezing
Which hormone regulates blood sugar levels?
a) Thyroxine
b) Insulin
c) Adrenaline
d) Growth hormone
Answer:
b) Insulin
Which hormone is responsible for the fight-or-flight response?
a) Thyroxine
b)
Oestrogen
c) Adrenaline
d) Insulin
Answer:
c) Adrenaline
What is the full form of PNS?
a) Peripheral Neural System
b) Peripheral Nervous System
c) Primary Nervous System
d) Primitive Nervous System
Answer:
b) Peripheral Nervous Syste
m
Which gland is known as the "master gland"?
a) Thyroid
b) Adrenal
c) Pituitary
d) Pancreas
Answer:
c) Pituitary
What is the function of thyroxine?
a) Regulates metabolism
b) Controls calcium levels
c) Regulates blood sugar
d) Controls reflex actions
Answer:
a) Regulates metabolism
What causes
goitre
?
a) Excess thyroxine
b) Deficiency of insulin
c) Deficiency of iodine
d) Excess growth hormone
Answer:
c) Deficiency of iodine
Which gland secretes insulin?
a) Pituitary
b) Pancreas
c) Thyroid
d) Adrenal
Answer:
b) Pancreas
The hormone responsible for growth is:
a) Thyroxine
b) Insulin
c) Growth hormone
d)
Oestrogen
Answer:
c) Growth hormon
e
Which hormone controls water balance in the body?
a) ADH (Antidiuretic Hormone)
b) Insulin
c) Glucagon
d)
Oestrogen
Answer:
a) ADH (Antidiuretic Hormone)
What is the movement of plants in response to light called?
a)
Thigmotropism
b) Geotropism
c) Phototropism
d) Hydrotropism
Answer:
c) Phototropism
Which plant hormone promotes cell elongation?
a) Auxin
b) Cytokinin
c) Gibberellin
d) Ethylene
Answer:
a) Auxin
What is the response of plants towards gravity called?
a) Hydrotropism
b) Geotropism
c) Phototropism
d) Chemotropism
Answer:
b) Geotropism
Which plant hormone promotes seed germination?
a) Auxin
b) Cytokinin
c) Gibberellin
d) Ethylene
Answer:
c) Gibberellin
Which hormone is responsible for ripening of fruits?
a) Auxin
b) Gibberellin
c) Cytokinin
d) Ethylene
Answer:
d) Ethylene
What is the movement of a plant in response to touch called?
a) Hydrotropism
b)
Thigmotropism
c) Chemotropism
d) Phototropism
Answer:
b)
Thigmotropism
Which hormone helps in cell division?
a) Auxin
b) Cytokinin
c) Ethylene
d) Abscisic acid
Answer:
b) Cytokinin
The hormone responsible for wilting of leaves is:
a) Auxin
b) Gibberellin
c) Abscisic acid
d) Cytokinin
Answer:
c) Abscisic acid
What is the main function of abscisic acid?
a) Promotes growth
b) Induces dormancy
c) Stimulates flowering
d) Enhances photosynthesis
Answer:
b) Induces dormancy
Which hormone inhibits plant growth?
a) Auxin
b) Cytokinin
c) Abscisic acid
d) Gibberellin
Answer:
c) Abscisic acid
The fastest reflex action in humans is:
a) Sneezing
b) Coughing
c) Eye blinking
d) Yawning
Answer:
c) Eye blinking
Which part of the brain controls emotions?
a) Cerebellum
b) Medulla
c) Cerebrum
d) Spinal cord
Answer:
c) Cerebrum
Which hormone controls the menstrual cycle in females?
a) Thyroxine
b)
Oestrogen
and Progesterone
c) Insulin
d) Growth hormone
Answer:
b)
Oestrogen
and Progesterone
Name one exocrine gland in the human body.
a) Pituitary gland
b) Adrenal gland
c) Salivary gland
d) Thyroid gland
Answer:
c) Salivary gland
Which gland acts as both an exocrine and an endocrine gland?
a) Thyroid
b) Pituitary
c) Pancreas
d) Adrenal
Answer:
c) Pancreas
Which gland secretes the male hormone testosterone?
a) Pituitary gland
b) Thyroid gland
c) Testes
d) Pancreas
Answer:
c) Testes
Which gland secretes the female hormone progesterone?
a) Pancreas
b) Ovaries
c) Adrenal
d) Pituitary
Answer:
b) Ovaries
Which of the following plants shows
chemotropism
(response to touch)?
a) Sunflower
b) Mango tree
c) Mimosa (Touch-Me-Not)
d) Neem tree
Answer:
c) Mimosa (Touch-Me-Not)
What is the full form of CNS?
a) Central Neural System
b) Cerebral Nervous System
c) Central Nervous System
d) Cerebellar Nervous System
Answer:
c) Central Nervous System
Which hormone controls sugar metabolism in the human body?
a) Adrenaline
b) Insulin
c) Thyroxine
d)
Oestrogen
Answer:
b) Insulin
