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. Hypothalamus
- B. Thalamus
- C. Hippocampus
- D. Amygdala
Explanation: The correct answer is the hypothalamus, as it is specifically designed to regulate body temperature, among other vital functions.
Correct answer: Hypothalamus- A. Nerves
- B. Infundibulum
- C. Blood
- D. No connection
Explanation: The hypothalamus is connected to the pituitary gland via the infundibulum, which is a funnel-shaped structure that physically links the…
Correct answer: Infundibulum- A. 60
- B. 62
- C. 64
- D. 66
Explanation: The human spinal cord gives rise to 31 pairs of spinal nerves, each pair emerging from a specific segment of the spinal cord.
Correct answer: 62- A. 3,4 and 5
- B. 4,5 and 3
- C. 3,5 and 4
- D. 4,3 and 5
Explanation: The 12 pairs of cranial nerves are divided based on their functionality: 3 pairs are sensory in nature (olfactory, optic, and…
Correct answer: 3,4 and 5- A. Balanced
- B. Only cytokinin required
- C. Low auxin, very high cytokinin
- D. Only auxin
Explanation: The ratio of auxin to cytokinin plays an important role in the effect of cytokinin on plant growth.
Correct answer: Low auxin, very high cytokinin- A. Thinking
- B. Sleep
- C. Thirst
- D. Swallowing
Explanation: The medulla oblongata is a structure found in the human brain. The major function of the Medulla oblongata is to control automatic…
Correct answer: Swallowing- A. Brain
- B. Middle ear
- C. Lungs
- D. Urinary tract
Explanation: Otitis media is an inflammation of the middle ear. The eustachian tubes equalise the pressure between the middle ear cavity and the…
Correct answer: Middle ear908. In which of the following disorders is the structure and function of the normal spinal cord damaged?
- A. Arthritis
- B. Sciatica
- C. Spondylosis
- D. Disc slip
Explanation: When Osteoarthritis affects the spine, it is known as Spondylosis. Due to the change in the structure and function of the spinal cord, the…
Correct answer: Spondylosis- A. Abscises acid
- B. Cytokinin
- C. Ethylene
- D. Gibberellic acid
Explanation: Ethylene is a colorless, flammable, gaseous unsaturated hydrocarbon, C2H4, and occurs in plants functioning especially as a natural growth…
Correct answer: Ethylene- A. Bone formation
- B. Kidney stone
- C. Hyperthyroidism
- D. Hypothyroidism
Explanation: A diet low in calcium actually increases one's risk of developing kidney stones.
Correct answer: Kidney stone- A. Pons
- B. Cerebrum
- C. Cerebellum
- D. Medulla oblongata
Explanation: The medulla oblongata is responsible for regulating several basic functions of the autonomic nervous system, including respiration…
Correct answer: Medulla oblongata- A. Muscular disorders
- B. Vascular disorders
- C. Functional disorders
- D. All of these
Explanation: Vascular diseases affect the circulatory system since the question states they are caused by a disturbance of blood supply.
Correct answer: Vascular disorders- A. Cirrhosis
- B. Angina
- C. Stroke
- D. Epilepsy
Explanation: Abnormal electrical activity in the brain triggers seizure activity. A person may have a seizure disorder (epilepsy) and require…
Correct answer: Epilepsy- A. Optic disc
- B. Rods
- C. Cones
- D. Ligaments
Explanation: Rods are a type of photoreceptor cell in the retina. They are sensitive to light levels and help give us good vision in low light.
Correct answer: Rods- A. 6...12
- B. 12...24
- C. 24...12
- D. 31...12
- E. 12...31
Explanation: Nerves emerging from the brain are called cranial nerves. Nerves emerging from the spinal cord are called spinal nerves.
Correct answer: 12...31- A. Sensory neuron
- B. Motor neuron
- C. Efferent neuron
- D. Interneuron
- E. Ganglion
Explanation: A sensory neuron is a nerve cell that detects and responds to external signals via receptors and converts this information into electrical…
Correct answer: Sensory neuron- A. FSH
- B. GH
- C. LH
- D. Prolactin
Explanation: Luteinizing hormone (LH), also called interstitial-cell-stimulating hormone (ICSH), is one of two gonadotropic hormones (i.e., hormones…
Correct answer: LH- A. Cerebellum
- B. Cerebrum
- C. Hypothalamus
- D. Medulla obloganta
Explanation: The hypothalamus is the thermoregulatory center of the body. It keeps body temperature at 37°C by means of a complex thermostat system.
Correct answer: Hypothalamus- A. Neurilemma is discontinuous
- B. Myelin sheath is discontinuous
- C. Both the neurilemma and the myelin sheath are discontinuous
- D. It is covered by the myelin sheath
Explanation: At the level of the node of Ranvier, the myelin sheath is discontinuous, but not the neurilemma lining.
Correct answer: Myelin sheath is discontinuous- A. Contraction of hair muscles
- B. Stimulation of sweat glands
- C. Acceleration of heart beat
- D. Constriction of pupil
Explanation: The action of the parasympathetic nervous system is opposite to that of the sympathetic nervous system.
Correct answer: Constriction of pupil