Fsc Part 2 Online Preparation for Biology Chapter 17 (Coordination and Control)

Online Short Questions For Chapter 3 "12th Class Biology Chapter 17 Short Questions Preparation "

Try The Short Questions For 12th Class Biology Chapter 17 Short Questions Preparation

  • Total Questions10

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Biology - 12th Class Biology Chapter 17 Short Questions Preparation

Question # 1

Give two functions of cytokinin hormone.

  • Ans 1: It inhibits primary root growth and promote opening of stomata.
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Prepare Complete Set Wise Questions For Chapter 3 "12th Class Biology Chapter 17 Short Questions Preparation "

12th Class Biology Chapter 17 Short Questions Preparation - Set 1

Question # 1

Give two functions of cytokinin hormone.

  • Ans 1: It inhibits primary root growth and promote opening of stomata.
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12th Class Biology Chapter 17 Short Questions Preparation - Set 2

Question # 1

What is the role of anti diuretic hormone(ADH)?

  • Ans 1: ADH secretion cause decrease in blood pressure,blood volume and osmotic pressure of the blood detected by osmoreceptors in the hypothalamus.It is mainly control the concentration of urine.
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12th Class Biology Chapter 17 Short Questions Preparation - Set 3

Question # 1

What is cerebrospinal fluid?Give its function.

  • Ans 1: Beneath the cranium,the brain and spinal cord are protected by triple layer of meninges.Between the layers of meninges the cerebrospinal fluid (CSF),similar in composition to blood plasma.
  • Ans 2: Its function is to bath the neurous of brain and spinal cord and it cushions against bumps and jolts.
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12th Class Biology Chapter 17 Short Questions Preparation - Set 4

Question # 1

Define habituation. Give its example.

  • Ans 1: It is the simplest from of learning and involves modification of behavior through decrease in response due to repeated stimuli e.g Rodents respond to alarm cells by others in their groups,if these calls are continued and no danger is confirmed further calls may be ignored.
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12th Class Biology Chapter 17 Short Questions Preparation - Set 5

Question # 1

Give the role of insulin and glucagon.

  • Ans 1: Insulin controls the blood sugar level by different ways.It may be as
  • Ans 2: By converting glucose in to glycogen
  • Ans 3: By converting glucose in to proteins or fats
  • Ans 4: By increasing its utilization in the cell
  • Ans 5: By inhibiting the conversion of glycogen in to glucose
    Glucagon increases the blood sugar level. This is done by converting stored glycogen in to glucose.
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12th Class Biology Chapter 17 Short Questions Preparation - Set 6

Question # 1

Define reflex arc and give its components.

  • Ans 1: The path followed by the nerve impulse during the reflex action is called reflex arc.Its components are receptors,sensory neurons,inter neuron.motor neuron and effectors.
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12th Class Biology Chapter 17 Short Questions Preparation - Set 7

Question # 1

Differentiate between CNS and PNS

  • Ans 1: CNS Central nervous system consists of brain and spinal cord.
  • Ans 2: PNS Peripheral nervous system consists of nerves arising from brain (cranial nerves) and spinal cord(spinal nerves).
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12th Class Biology Chapter 17 Short Questions

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