Free Coordination and Control MCQs with Answers
1,687 Coordination and Control MCQs from Biology, each with the correct answer and a written explanation of why it is correct. Free and unlimited, with no account needed.
Coordination depends on receptors, neurons, synapses and nerve impulses, with reflex actions traced through the reflex arc and the roles of major brain regions. Chemical coordination covers endocrine glands and hormones, including how hormones regulate growth, metabolism, reproduction and internal balance, unlike rapid nervous control.
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- A. Na+ into the axon and K+ out of the axon
- B. K+ into the axon and Na+ out of the axon
- C. Na+ and K+ within the axon toward the axon terminal
- D. None of these
Explanation: Due to opening of sodium gates, sodium ions move inward the neuron to cause depolarization.
Correct answer: None of these- A. Glucagon secretion to stop and a decrease in blood glucose
- B. Decrease in calcium secretion from bones into blood.
- C. Insulin secretion to stop and an increase in blood glucose
- D. Insulin secretion to stop and a decrease in blood glucose
Explanation: Beta cells have no relation with calcium regulation.
Correct answer: Insulin secretion to stop and an increase in blood glucose- A. Hyperthyroidism
- B. Over production of STH
- C. Over production of adrenal cortex
- D. Over production of adrenal medulla
Explanation: aggressive behavior is most closely associated with overproduction of adrenal medulla hormones
Correct answer: Over production of adrenal medulla- A. Addison's disease
- B. Cushing's disease
- C. Failure to cope stress
- D. Tay-Sach's disease
Explanation: Tay-Sachs disease is a specific disease that is not caused by adrenal cortical abnormality.
Correct answer: Tay-Sach's disease- A. Brain
- B. Hypothalamus
- C. Spinal cord
- D. Pituitary gland
Explanation: Reflex actions below the neck are primarily under the control of the "spinal cord".
Correct answer: Spinal cord- A. Digestion of food
- B. Accelerated heart beat
- C. High metabolism
- D. Rapid muscle movement
Explanation: Yes, the parasympathetic nervous system stimulates digestive activities.
Correct answer: Digestion of food- A. Addison's
- B. Alzheimer's
- C. Parkinson's
- D. Cushing's
Explanation: Yes, Addison's disease can be associated with excess secretion of melanocyte-stimulating hormone (MSH).
Correct answer: Addison's- A. lodopsin glands
- B. Thyroid gland
- C. Rhodopsin glands
- D. Pituitary glands
Explanation: The pituitary gland is indeed a small, pea-sized gland located at the base of the brain, just below the hypothalamus, to which it is…
Correct answer: Pituitary glands- A. Motor neuron
- B. Effector
- C. Pituitary
- D. Spinal cord
Explanation: The pituitary gland does not directly participate in reflex actions. Reflex actions are rapid, involuntary responses to stimuli that…
Correct answer: Pituitary1550. In the peripheral nervous system, the nerves that arise from spinal cord and brain are called:
- A. Spinal nerves
- B. Cranial nerves
- C. Temporal nerves
- D. Both A and B respectively
Explanation: The explanation for this question is as follows: Peripheral Nervous System (PNS):It comprises of sensory neurons and motor neurons, which…
Correct answer: Both A and B respectively- A. Sensory
- B. Motor
- C. Mixed
- D. All A, B and C are correct
Explanation: The explanation for this question is as follows:The axons of sensory neurons enter the dorsal surface of the spinal cord and form the…
Correct answer: Sensory- A. Corpus callosum
- B. Hippocampus
- C. Medulla Oblongata
- D. Thalamus
Explanation: The explanation for this question is as follow: Medulla controls several automatic functions, such as breathing, Heart rate, blood…
Correct answer: Medulla Oblongata- A. Pons
- B. Mesencephalon
- C. Medulla Oblongata
- D. All of these
Explanation: The explanation for this question is as follows: Midbrain is also known as mesencephalon so option B is the correct answer.
Correct answer: Mesencephalon- A. Thalmus and limbic system
- B. Thalamus and cerebrum
- C. Cerebrum, limbic system and thalamus
- D. Cerebrum and limbic system
Explanation: The forebrain contains the cerebrum, limbic system, thalamus, pituarity gland and the olfactory bulb.
Correct answer: Cerebrum, limbic system and thalamus- A. Sodium pumps
- B. Potassium pumps
- C. Calcium pumps
- D. None of the above
Explanation: The resting potential in nerve cells is maintained by sodium-potassium pumps.
Correct answer: None of the above- A. Hypothalamus
- B. Bones
- C. Skin
- D. Brain
Explanation: The sensory neuron has pain-sensitive endings in skin.Pain-sensitive endings are also known as nociceptors.
Correct answer: Skin- A. Choline
- B. Acetaldehyde
- C. Acetylcholine
- D. Phosphatidylcholine
Explanation: Acetylcholine is the main neurotransmitter for synapses that lie outside the central nervous system (CNS).
Correct answer: Acetylcholine- A. Forebrain
- B. Midbrain
- C. Hindbrain
- D. Limbic system
Explanation: Medulla, pons, and cerebellum are parts of the hindbrain. The hindbrain regulates vital autonomic functions like breathing, heart rate…
Correct answer: Hindbrain- A. Cerebrum
- B. Cerebellum
- C. Cerebral cortex
- D. Cerebral hemispheres
Explanation: Cerebellum is a part of hind brain that's why this option is different from others.
Correct answer: Cerebellum- A. 2
- B. 6
- C. 5
- D. 8
Explanation: The spinal cord and spine are divided into 5 regions from top to bottom: cervical, thoracic, lumbar, sacral and coccygeal.Each region…
Correct answer: 5