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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1,687 questions · page 79 of 85
- A. 0.17V
- B. -50 mV
- C. 0.05V
- D. Both A and B
Explanation: The correct answer is 0.05 V, which is equivalent to 50 mV. This value represents the peak of the action potential where the membrane…
Correct answer: 0.05V- A. Encephalitis
- B. Creutzfeldt-Jakob Disease
- C. Spongiocitis of Cerebrum
- D. Spondylitis
Explanation: The common term for bovine spongiform encephalopathy is mad cow disease, which is a progressive neurological disorder in cattle.
Correct answer: Creutzfeldt-Jakob Disease1563. The sensation of pleasure, punishment or sexual arousal when stimulated by the parts of the brain:
- A. Hippocampus
- B. Hypothalamus
- C. Amygdala
- D. Thalamus
Explanation: Amygdala controls feelings and emotions of love, hate, anger, fear, rage, and sexual arousal.
Correct answer: Amygdala- A. Skull
- B. Vertebral column
- C. Meninges
- D. CSF (cerebrospinal fluid)
- E. All of the above
Explanation: Explanation for this question will be added soon.
Correct answer: All of the above- A. Limbic system
- B. Cerebellum
- C. Cerebrum
- D. Thalamus
- E. Hypothalamus
Explanation: Explanation for this question will be added soon.
Correct answer: Thalamus- A. Brain
- B. Adrenal gland
- C. Stomach
- D. Thymus
Explanation: Endorphins are neurotransmitters that are produced in various parts of the brain, including the hypothalamus and the pituitary gland.
Correct answer: Brain- A. Thyrotropin
- B. Corticotropin
- C. Somatotropin
- D. Prolactin
Explanation: Gigantism occurs when a child's pituitary gland makes too much growth hormone, which is also known as somatotropin.
Correct answer: Somatotropin- A. Thyroid stimulating hormone
- B. LH
- C. ACTH
- D. FSH
- E. ADH
Explanation: Explanation for this question will be added soon.
Correct answer: ADH- A. FSH
- B. Calcitonin
- C. Parathyroid hormone
- D. ADH
- E. Insulin
Explanation: Explanation for this question will be added soon.
Correct answer: ADH- A. Labor pains
- B. Body temperature
- C. Insulin production
- D. Thyroxin release
Explanation: Labor pains are an example of a physiological process controlled through positive feedback, where the response reinforces and amplifies…
Correct answer: Labor pains- A. Ovaries
- B. Hypothalamus
- C. Pituitary
- D. Testes
Explanation: Gonadotropins are released by the pituitary gland. Examples include LH, FSH etc.
Correct answer: Pituitary- A. Body temperature
- B. Glucagon production
- C. Labor contraction
- D. Parathyroid activity
Explanation: Oxytocin stimulates the muscle contractions that push the baby through the birth canal.
Correct answer: Labor contraction- A. Growth Hormone - Somatostatin
- B. Calcitonin - Parathyroid
- C. Adrenaline - Noradrenaline
- D. Insulin - Glucagon
Explanation: A is incorrect because somatostatin inhibits the release of growth hormone from the pituitary gland.
Correct answer: Adrenaline - Noradrenaline- A. Pituitary gland
- B. Thyroid gland
- C. Parathyroid gland
- D. Mammary gland
Explanation: The pituitary gland is sometimes called the "master" gland of the endocrine system because it controls the functions of many of the other…
Correct answer: Pituitary gland- A. Cortisone
- B. Adrenaline
- C. Insulin
- D. Thyroxin
Explanation: The steroids that are made almost exclusively in the adrenal glands are cortisol, 11-deoxycortisol, aldosterone, corticosterone, and…
Correct answer: Cortisone- A. ADH (Antidiuretic Hormone)
- B. Oxytocin
- C. Glucagon
- D. Thyroxin
Explanation: ADH is released in response to increased blood osmolality or decreased water content.
Correct answer: ADH (Antidiuretic Hormone)- A. Mg2+
- B. Na+
- C. K+
- D. Ca2+
Explanation: Parathyroid glands play a crucial role in regulating calcium levels in the blood.
Correct answer: Ca2+- A. Movement of calcium ions from the axon terminals into the synaptic cleft
- B. Movement of calcium ions from the synaptic cleft into the axon terminals
- C. Movement of sodium ions into the axon terminals from the synaptic cleft
- D. Movement of sodium ions into the synaptic cleft from the axon terminals
- E. None of the above
Explanation: Explanation for this question will be added soon.
Correct answer: Movement of calcium ions from the synaptic cleft into the axon terminals- A. K+
- B. Na+
- C. Ca*
- D. Cl-
Explanation: During the non-conducting state of a neuron, the neuron membrane is permeable to the efflux of potassium ions (K+).
Correct answer: K+- A. Stay in synaptic cleft indefinitely
- B. Recycled in synaptic cleft
- C. Degraded by enzyme
- D. Taken up by postsynaptic membrane
Explanation: After transmitting the nerve impulse, the neurotrasmitters are degraded by enzymes.
Correct answer: Degraded by enzyme