Coordination and Control
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Sure, here are 20 multiple choice questions (MCQs) for a 10th-grade Biology chapter on Coordination and Control along with their answers:
1. Which of the following is NOT a part of the central nervous system?
a) Brain
b) Spinal cord
c) Nerves
d) None of the above
Answer: c) Nerves
2. The structure that connects the two hemispheres of the brain is called?
a) Cerebellum
b) Hypothalamus
c) Corpus callosum
d) Pituitary gland
Answer: c) Corpus callosum
3. Which of the following is NOT a function of the hypothalamus?
a) Regulation of body temperature
b) Control of hunger and thirst
c) Production of adrenaline
d) Regulation of sleep patterns
Answer: c) Production of adrenaline
4. The neurotransmitter responsible for transmitting signals between neurons is?
a) Insulin
b) Dopamine
c) Adrenaline
d) Serotonin
Answer: d) Serotonin
5. The autonomic nervous system controls?
a) Involuntary actions
b) Voluntary actions
c) Both voluntary and involuntary actions
d) None of the above
Answer: a) Involuntary actions
6. Which gland is often referred to as the "master gland" of the endocrine system?
a) Thyroid gland
b) Adrenal gland
c) Pituitary gland
d) Pancreas
Answer: c) Pituitary gland
7. Which hormone is responsible for regulating blood sugar levels?
a) Insulin
b) Glucagon
c) Adrenaline
d) Thyroxine
Answer: a) Insulin
8. The hormone responsible for the fight or flight response is?
a) Insulin
b) Glucagon
c) Adrenaline
d) Thyroxine
Answer: c) Adrenaline
9. Which part of the brain is responsible for coordinating muscle movements and maintaining balance?
a) Cerebrum
b) Medulla oblongata
c) Cerebellum
d) Hypothalamus
Answer: c) Cerebellum
10. Which sensory receptor is responsible for detecting light?
a) Thermoreceptor
b) Chemoreceptor
c) Photoreceptor
d) Mechanoreceptor
Answer: c) Photoreceptor
11. Which part of the eye is responsible for controlling the amount of light entering the eye?
a) Retina
b) Lens
c) Cornea
d) Iris
Answer: d) Iris
12. The condition in which the lens of the eye becomes cloudy, leading to blurred vision, is called?
a) Myopia
b) Hyperopia
c) Astigmatism
d) Cataract
Answer: d) Cataract
13. The chemical substance released by endocrine glands into the bloodstream is called?
a) Hormone
b) Enzyme
c) Neuron
d) Neurotransmitter
Answer: a) Hormone
14. Which of the following is NOT a function of the endocrine system?
a) Regulation of metabolism
b) Regulation of body temperature
c) Regulation of growth and development
d) Regulation of reproductive functions
Answer: b) Regulation of body temperature
15. Which of the following hormones is responsible for stimulating milk production in mammary glands?
a) Estrogen
b) Testosterone
c) Prolactin
d) Oxytocin
Answer: c) Prolactin
16. Which hormone is responsible for regulating calcium levels in the blood?
a) Insulin
b) Glucagon
c) Thyroxine
d) Parathyroid hormone
Answer: d) Parathyroid hormone
17. Which part of the brain is responsible for controlling breathing and heart rate?
a) Cerebrum
b) Medulla oblongata
c) Cerebellum
d) Hypothalamus
Answer: b) Medulla oblongata
18. The space between two neurons where neurotransmitters are released is called?
a) Synapse
b) Axon
c) Dendrite
d) Myelin sheath
Answer: a) Synapse
19. The hormone responsible for stimulating uterine contractions during childbirth is?
a) Estrogen
b) Progesterone
c) Prolactin
d) Oxytocin
Answer: d) Oxytocin
20. Which of the following senses is NOT controlled by the nervous system?
a) Touch
b) Taste
c) Smell
d) Digestion
Answer: d) Digestion
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