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MCQs

Total Questions : 581 | Page 7 of 59 pages
Question 61. Gibberellins sometimes substitute for
  1.    blue light
  2.    red light
  3.    green light
  4.    yellow light
 Discuss Question
Answer: Option B. -> red light
Answer: (b).red light
Question 62. When a nerve impulse is generated in a neuron, its resting membrane potential is replaced by
  1.    passive membrane potential
  2.    powerful membrane potential
  3.    active membrane potential
  4.    intelligent membrane potential
 Discuss Question
Answer: Option C. -> active membrane potential
Answer: (c).active membrane potential
Question 63. Under-activity of parathormone causes a drop in blood calcium ions which in turn leads to
  1.    stiffness of body
  2.    arthritis
  3.    muscle rupture
  4.    muscular tetany
 Discuss Question
Answer: Option D. -> muscular tetany
Answer: (d).muscular tetany
Question 64. Modification of behaviour through a diminution of response to repeated stimuli is
  1.    imprinting
  2.    instinct
  3.    habituation
  4.    insight
 Discuss Question
Answer: Option C. -> habituation
Answer: (c).habituation
Question 65. In a resting neuron, K+ ions are
  1.    20 times more inside
  2.    20 times more outside
  3.    10 times more inside
  4.    10 times more outside
 Discuss Question
Answer: Option A. -> 20 times more inside
Answer: (a).20 times more inside
Question 66. Cold receptors are more abundant than heat receptors
  1.    15 times
  2.    10 Times
  3.    5 times
  4.    20 times
 Discuss Question
Answer: Option B. -> 10 Times
Answer: (b).10 Times
Question 67. Cortisol antagonizes action of
  1.    amylase
  2.    gastrin
  3.    insulin
  4.    secretin
 Discuss Question
Answer: Option C. -> insulin
Answer: (c).insulin
Question 68. Oxytocin is secreted by pituitary gland's
  1.    anterior lobe
  2.    median lobe
  3.    posterior lobe
  4.    frontal lobe
 Discuss Question
Answer: Option C. -> posterior lobe
Answer: (c).posterior lobe
Question 69. Each type of Principal sensation pain, touch, sight, sound are called
  1.    Modalities of sensation
  2.    modalities of reception
  3.    modalities of concentration
  4.    modalities of detection
 Discuss Question
Answer: Option A. -> Modalities of sensation
Answer: (a).Modalities of sensation
Question 70. Organs which carry out actions or produce responses are
  1.    receptors
  2.    action organs
  3.    effectors
  4.    synapse
 Discuss Question
Answer: Option C. -> effectors
Answer: (c).effectors

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