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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  • Total Questions10

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Biology - 12th Class Biology Chapter 17 Short Questions Preparation

Question # 1

Sketch and label sensory neuron.

  • Ans 1: Differentiate between axons and dendrites.
  • Ans 2: Dendrite It is cytoplasmic fiber of neuron which is smaller in size but many in number and conduct nerve impluse towards cell body.
  • Ans 3: Axon It is cytoplasmic fiber of neuron which is very long in size and one in number and conduct nerve impulse away from cell body.
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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

Sketch and label sensory neuron.

  • Ans 1: Differentiate between axons and dendrites.
  • Ans 2: Dendrite It is cytoplasmic fiber of neuron which is smaller in size but many in number and conduct nerve impluse towards cell body.
  • Ans 3: Axon It is cytoplasmic fiber of neuron which is very long in size and one in number and conduct nerve impulse away from cell body.
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12th Class Biology Chapter 17 Short Questions Preparation - Set 2

Question # 1

Differentiate between nerves and ganglia.

  • Ans 1: Nerve The nerves are the bundles of axons or dendrites bounded by connective tissues.
  • Ans 2: Ganglion The concentrated mass of cell bodies of neuron is called ganglion.
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12th Class Biology Chapter 17 Short Questions Preparation - Set 3

Question # 1

What are commercial applications of abscisic acid?

  • Ans 1: Abscisic acid can be sprayed on tree crops to regulate fruit drop at the end of the season.This removes the need for picking over a long time span.
  • Ans 2:

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12th Class Biology Chapter 17 Short Questions Preparation - Set 4

Question # 1

Compare photoreceptors with chemoreceports.

  • Ans 1: Chemoreceptors These are sensitive for chemical changes.These are for smell,taste and for blood carbon dioxide and oxygen,glucose,amino acids and fatty acids(receptors in hypothalamus)
  • Ans 2: Photoreceptors Electromagnetic receptors or photoreceptors respond to stimuli of light for example in eyes,rods and cones
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12th Class Biology Chapter 17 Short Questions Preparation - Set 5

Question # 1

Name hormones secreted by Islets of langerhans and their role.

  • Ans 1: Islets of langerhans produce Insuline and glucagon. They maintain blood glucose level.
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12th Class Biology Chapter 17 Short Questions Preparation - Set 6

Question # 1

What is circannual rhythm?

  • Ans 1: The rhythmic activities of organisms which are performed annually or after 365 days is called circannual rhythm.
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12th Class Biology Chapter 17 Short Questions Preparation - Set 7

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

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