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

  • Available Sets7

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Biology - 12th Class Biology Chapter 17 Short Questions Preparation

Question # 1

What are biorhythms and diurnal rhythms?

  • Ans 1: Biorhythms are the biological activities of living organisms which are performed at regular intervals are called biorhythms.
    Diurnal rhythms are the biological activities of organisms which are performed during one day 0r 24 hours.
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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

What are biorhythms and diurnal rhythms?

  • Ans 1: Biorhythms are the biological activities of living organisms which are performed at regular intervals are called biorhythms.
    Diurnal rhythms are the biological activities of organisms which are performed during one day 0r 24 hours.
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12th Class Biology Chapter 17 Short Questions Preparation - Set 2

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 3

Question # 1

What do you know about parasympathetic nervous system?

  • Ans 1: 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 relaxes state i.e,contraction of pupil,promotes food digestion and retards heart beat.
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12th Class Biology Chapter 17 Short Questions Preparation - Set 4

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 5

Question # 1

What are calluses?

  • Ans 1: These are the mass of undifferentiated cells produced in response to injury on plant body by mitotic cell division.
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12th Class Biology Chapter 17 Short Questions Preparation - Set 6

Question # 1

Write down four functions of auxin.

  • Ans 1: Function of auxin are
  • Ans 2: Auxin promote cell elongation
  • Ans 3: It promotes cell division in cambium
  • Ans 4: It can induce parthenocarpy
  • Ans 5: It promotes apical dominance
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12th Class Biology Chapter 17 Short Questions Preparation - Set 7

Question # 1

What are the functions of oxytocin hormone?

  • Ans 1: It cause distention of cervix,its primary function is on smooth muscles,particularly on uterus during child birth and also cause milk ejection.
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17th Chapter

12th Class Biology Chapter 17 Short Questions

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