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 "

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Biology - 12th Class Biology Chapter 17 Short Questions Preparation

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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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

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 Preparation - Set 2

Question # 1

What is chlorosis?

  • Ans 1: Yellowing Of plant leaves due to deficiency of chlorophyll is called chlorosis.It may be due to deficiency of nitrogen, magnesium or when plant is kept in dark for long time.
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12th Class Biology Chapter 17 Short Questions Preparation - Set 3

Question # 1

What are the function of parathyroid glands? Or What are two functions of parathyroid gland?

  • Ans 1: Parathyroid gland produces paratharmone which control calcium level in the blood.Its over activity cause demineralization of bones while under activity cause muscular tetany.
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12th Class Biology Chapter 17 Short Questions Preparation - Set 4

Question # 1

Explain imprinting.

  • Ans 1: young birds after hatching have a tendency to follow moving objects in their surroundings and show a brief period of sensitivity during which shape of object can be imprinted with the result that the young birds follow them.
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12th Class Biology Chapter 17 Short Questions Preparation - Set 5

Question # 1

Define Nissl's Granules.

  • Ans 1: Nissl's granules which are groups of ribosomes associated with rough endoplasmic reticulum and glogi apparatus for protein synthesis,present in cell body of neuron.
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12th Class Biology Chapter 17 Short Questions Preparation - Set 6

Question # 1

What is sodium potassium pump?

  • Ans 1: These are the special proteins which are present on the neuron membrane and act as pump to move the K ions across the membrane during the transmissionof nerve impluse
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12th Class Biology Chapter 17 Short Questions Preparation - Set 7

Question # 1

Define feedback machanism.

  • Ans 1: It is a type of interaction in which a controlling mechanism is itself controlled by the products of the reaction it is controlling.
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12th Class Biology Chapter 17 Short Questions

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