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MCQs

Total Questions : 581 | Page 1 of 59 pages
Question 1. Main transmitter for synapses that lie outside central nervous system is
  1.    serotonin
  2.    adrenaline
  3.    acetylcholine
  4.    dopamine
 Discuss Question
Answer: Option C. -> acetylcholine
Answer: (c).acetylcholine
Question 2. When an impulse reaches a synaptic knob, synaptic vesicles fuse with the
  1.    pre-synaptic membrane
  2.    post-synaptic membrane
  3.    synaptic cleft
  4.    neurotransmitters
 Discuss Question
Answer: Option A. -> pre-synaptic membrane
Answer: (a).pre-synaptic membrane
Question 3. Outer layer of adrenal gland is called
  1.    adrenal cortex
  2.    adrenal medulla
  3.    cortex
  4.    medulla
 Discuss Question
Answer: Option A. -> adrenal cortex
Answer: (a).adrenal cortex
Question 4. Medulla of adrenals produces hormone
  1.    adrenaline
  2.    nor-adrenaline
  3.    cortico-steroids
  4.    Both a and b
 Discuss Question
Answer: Option D. -> Both a and b
Answer: (d).Both a and b
Question 5. Weed killing is done by
  1.    2,4 D
  2.    NAA
  3.    IAA
  4.    Ethane
 Discuss Question
Answer: Option A. -> 2,4 D
Answer: (a).2,4 D
Question 6. Tactical movement is felt, when the impulse reaches the
  1.    midbrain
  2.    hindbrain
  3.    Medulla Oblongata
  4.    cerebrum
 Discuss Question
Answer: Option D. -> cerebrum
Answer: (d).cerebrum
Question 7. Impulses are carried from receptors to CNS and then to
  1.    spinal cord
  2.    organs
  3.    effectors
  4.    conductors
 Discuss Question
Answer: Option C. -> effectors
Answer: (c).effectors
Question 8. The process in which activation or inhibition of an enzyme by a small regulatory molecule is called
  1.    enzyme control
  2.    allosteric control
  3.    Specificity control
  4.    Enzyme action
 Discuss Question
Answer: Option B. -> allosteric control
Answer: (b).allosteric control
Question 9. Involuntary actions are controlled by
  1.    Midbrain
  2.    Cerebellum
  3.    Medulla Oblongata
  4.    Hypothalamus
 Discuss Question
Answer: Option C. -> Medulla Oblongata
Answer: (c).Medulla Oblongata
Question 10. In enzymes the allosteric control changes the
  1.    nature of enzyme
  2.    shape of enzyme
  3.    physical properties of enzyme
  4.    chemical properties of enzyme
 Discuss Question
Answer: Option B. -> shape of enzyme
Answer: (b).shape of enzyme

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