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

Give two commercial application of ethane.

  • Ans 1: It is used to increase the speed of lates flow in rubber plant.it is also used for artificial ripening of fruits and to induce flowering in pineapple.
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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 commercial application of ethane.

  • Ans 1: It is used to increase the speed of lates flow in rubber plant.it is also used for artificial ripening of fruits and to induce flowering in pineapple.
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12th Class Biology Chapter 17 Short Questions Preparation - Set 2

Question # 1

Compare sympathetic nervous system with parasympthetic nervous system.

  • Ans 1: Parasympathetic nervous system A few cranial nerves including the vagus nerve together with the fibre from bottom portion of spinal cord from PNS.it promotes all the internal responses which are associated with the relaxed state i.e,contraction of pupil,promotes food digestion and retards heart beat.
  • Ans 2: Sympthethic nervous system Most ganglion fibers of the sympathetic nervous system arise from the middle portion of the spinal cord and almost terminate in ganglia that lie near the cord.This system is important during emergency situation and associated with fight or flight.This system accelerates the heart beat and dilates the pupil and inhibits the digestion of food etc.
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12th Class Biology Chapter 17 Short Questions Preparation - Set 3

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 4

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 5

Question # 1

Name various structural that protect our brain.

  • Ans 1: Following are the structures which protect our brain
  • Ans 2: skull
  • Ans 3: Meninges(though membrane)
  • Ans 4: Cerebrospinal fluid which act as shock absorber.
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12th Class Biology Chapter 17 Short Questions Preparation - Set 6

Question # 1

How brain is protected with various covers?

  • Ans 1: Cranium protects the brain.Beneath the cranium brain is protected by triple layer of meninges.Between the meninges there is filled cerebrospinal fluid which act as shock absorber.
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12th Class Biology Chapter 17 Short Questions Preparation - Set 7

Question # 1

Give two characteristics of hormones.

  • Ans 1: hormones are porteins in nature.

  • Ans 2: They help in the co-ordination of the organisms by activating the target cells of the body.
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12th Class Biology Chapter 17 Short Questions

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