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Control and Co-ordination in Plants and Animals

Description: Control and Coordination in Plants and Animals
Number of Questions: 10
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Tags: Control and Coordination in Plants and Animals Coordination & control in Animals
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The study of the nervous system and its disorder is called

  1. urology

  2. haematology

  3. neurology

  4. herpentology


Correct Option: C
Explanation:

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Which of the following processes is found in animals only?

  1. Nervous control

  2. Hormonal control

  3. Respiration

  4. Diffusion


Correct Option: A
Explanation:

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Which of the following causes synaptic fatigue?

  1. Repeated release of acetylcholine

  2. Repeated release of adrenaline

  3. Exhaustion of acetylcholinesterase

  4. Exhaustion of neurotransmitter


Correct Option: D
Explanation:

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The region of the brain that coordinates various involuntary actions of the body is

  1. cerebrum

  2. medulla oblongata

  3. cerebellum

  4. optic lobes


Correct Option: C
Explanation:

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Which of the following is not a reflex action?

  1. Sneezing

  2. Yawning

  3. Chewing

  4. Crying


Correct Option: C
Explanation:

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During depolarisation, permeability of neuron increases towards

  1. H+

  2. Na+

  3. Ag+

  4. Mg++


Correct Option: B
Explanation:

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Which of the following is a growth retardant?

  1. Morphactin

  2. Zeatin

  3. Adenine

  4. Ascorbic acid


Correct Option: A
Explanation:

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From which of the following was kinetin isolated?

  1. Coconut milk

  2. Pineapple

  3. Soybean milk

  4. Ground nut


Correct Option: A
Explanation:

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Prohormones are

  1. active forms of hormones

  2. inactive forms of hormones

  3. both (1) and (2)

  4. none of the above


Correct Option: B
Explanation:

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A substance called ADH is

  1. a hormone that promotes glycogenesis in liver cells

  2. an enzyme secreted by cells of intestinal wall and hydrolyses dipeptides into amino acids

  3. a pituitary secretion which promotes reabsorption of water from glomerular filtrate

  4. a high energy compound involved in muscle contraction


Correct Option: C
Explanation:

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