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 kineses and taxes.

  • Ans 1: Kineses: kineses is a behavior in which an organism changes the speed of random movement which helps them to survive in the environment.
  • Ans 2: Taxes: in contrast to kineses a taxis is a directed movement either towards or away from a stimulus.
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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 kineses and taxes.

  • Ans 1: Kineses: kineses is a behavior in which an organism changes the speed of random movement which helps them to survive in the environment.
  • Ans 2: Taxes: in contrast to kineses a taxis is a directed movement either towards or away from a stimulus.
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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 leutinnizing hormone(LH). Write its role

  • Ans 1: LH works with FSH to stimulate oestrogen secretion and rupture mature follicles to release ovum. It also causes leutinization of follicle after ovulation and along with prolactin maintains corpus leuteum.
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12th Class Biology Chapter 17 Short Questions Preparation - Set 4

Question # 1

What is meant by division of labour ?

  • Ans 1: Division of labour means a specific type of cells can perform a specific type of function.Like muscle cells contract and relax,glandular cells produce secretions, phloem can transport food.
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12th Class Biology Chapter 17 Short Questions Preparation - Set 5

Question # 1

Differentiate between kineses and taxes.

  • Ans 1: Kineses: kineses is a behavior in which an organism changes the speed of random movement which helps them to survive in the environment.
  • Ans 2: Taxes: in contrast to kineses a taxis is a directed movement either towards or away from a stimulus.
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12th Class Biology Chapter 17 Short Questions Preparation - Set 6

Question # 1

What is cretinism?

  • Ans 1: If congenitally thyroxin production is low,it may cause cretinism,where the individual fails to develop normally.These are small,have coarse scanty hairs,thick yellowish scaly skin and mentally retarded.
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12th Class Biology Chapter 17 Short Questions Preparation - Set 7

Question # 1

Discuss the role of two hormones produced by gut.

  • Ans 1: Gastrin produced from mucosa of pyloric region of stomach. It stimulates the production of gastric juice.
  • Ans 2: secretin produced from intestinal mucosa and it stimulates the production of pancreatic juice.
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12th Class Biology Chapter 17 Short Questions

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