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. Alzheimer's disease
- B. Meningitis
- C. Cerebrovascular accident (CVA)
- D. Malignant
Explanation: The correct answer is Alzheimer's disease. Alzheimer's disease is a chronic neurodegenerative disease that typically starts slowly and…
Correct answer: Alzheimer's disease- A. Hypothalamus
- B. Medulla oblongata
- C. Cerebellum
- D. Both B and C
Explanation: The swallowing procedure is actually regulated by nerves in both the cerebellum and the medulla oblongata.
Correct answer: Both B and C1643. Telencephalon refers to:
- A. Brain stem
- B. Cerebellum
- C. Cortex
- D. Cerebral Hemispheres
Explanation: The telencephalon is the most anterior part of the brain and is responsible for higher cognitive functions such as perception, learning…
Correct answer: Cerebral Hemispheres- A. Instinct
- B. Maturation
- C. Habituation
- D. Imprinting
Explanation: Habituation refers to the decrease in response to repeated or continuous stimulation.
Correct answer: Habituation- A. Operant learning
- B. Classical conditioning
- C. Insight
- D. Imprinting
Explanation: Trial and error learning, also known as operant conditioning, involves learning through repeated experiences and adjusting behavior based…
Correct answer: Classical conditioning- A. Enlargement of bones
- B. Slow heart rate and nervousness
- C. Loss of body weight
- D. Sexual precocity
Explanation: Hyperthyroidism happens when the thyroid gland makes too much thyroid hormone. This condition also is called overactive thyroid.
Correct answer: Loss of body weight- A. Adrenal cortex
- B. Adrenal medulla
- C. Cerebral cortex
- D. Cerebral medulla
Explanation: Cortisone is the man-made form of the natural hormone cortisol. Cortisol is a steroid hormone that is produced by the adrenal glands…
Correct answer: Adrenal cortex- A. Sodium in water
- B. Calcium in water
- C. Iodine in water
- D. Sugar in water
Explanation: Goiter is caused by an iodine deficiency, which is vital for the production of thyroid hormones.
Correct answer: Iodine in water- A. Thyroxine
- B. Non_adrenaline
- C. Adrenaline
- D. All of above
Explanation: Thyroxine: Thyroxine was the first hormone to be isolated and crystallized in 1914, making it a significant milestone in endocrinology.
Correct answer: Thyroxine- A. Thyroxine
- B. Nor adrenalin
- C. Adrenalin
- D. All of the above
Explanation: Thyroxine, also known as T4, is the first hormone to be identified as a crystalline substance.
Correct answer: Thyroxine- A. Protein hormones
- B. Non-steroid hormones
- C. Steroid hormones
- D. Peptide hormones
Explanation: Steroid hormones are synthesized from cholesterol and include key hormones such as testosterone, estrogen, cortisol, and aldosterone.
Correct answer: Steroid hormones- A. PTH (Parathyroid Hormone)
- B. Thyroxine
- C. Aldosterone
- D. Calcitonin
Explanation: Thyroxine is the hormone secreted by the thyroid gland that plays a key role in regulating the body's metabolism.
Correct answer: Thyroxine- A. Testes and ovaries
- B. Adrenal glands and gonads
- C. Adrenal cortex and gonads
- D. Gonads and thyroids
Explanation: Steroid hormones are primarily produced by the adrenal cortex and the gonads.
Correct answer: Adrenal cortex and gonads1654. Insulin is produced by:
- A. Alpha-cells
- B. Beta-cells
- C. Delta-cells
- D. Gamma-cells
Explanation: Insulin is produced by Beta cells, which are found in the islets of Langerhans in the pancreas.
Correct answer: Beta-cells1655. Thirst is controlled by:
- A. Pituitary gland
- B. Adrenal gland
- C. Parathyroid
- D. Thyroid
Explanation: The pituitary gland, specifically through the release of antidiuretic hormone (ADH), plays a crucial role in managing the body's water…
Correct answer: Pituitary gland- A. MSH
- B. LH
- C. ADH
- D. Melatonin
Explanation: Melatonin is a hormone involved in many biological and physiological regulations in the body.
Correct answer: Melatonin- A. LH (Luteinizing Hormone)
- B. ACTH (Adrenocorticotropic Hormone)
- C. FSH (Follicle-Stimulating Hormone)
- D. ADH (Antidiuretic Hormone)
Explanation: Antidiuretic hormone (ADH) is a chemical produced in the brain that causes the kidneys to release less water, decreasing the amount of…
Correct answer: ADH (Antidiuretic Hormone)- A. Hyperthyroidism
- B. Hypocalcemia
- C. Hypochondria
- D. Hypercalcemia
Explanation: Exophthalmia, the abnormal protrusion of the eyes, is typically associated with Graves' disease, a form of hyperthyroidism.
Correct answer: Hyperthyroidism- A. Parathormone (PTH)
- B. Calcitonin
- C. Thyroxine
- D. Both (a) & (b)
Explanation: The release of calcium from bone into the blood is controlled by parathyroid hormone (PTH).
Correct answer: Parathormone (PTH)- A. Cortisol
- B. Testosterone
- C. Insulin
- D. Aldosterone
Explanation: Insulin is a non-steroidal hormone, distinct from steroid hormones which are derived from cholesterol and are fat-soluble.
Correct answer: Insulin