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

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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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

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 2

Question # 1

Write down the role of hypothalamus in chemical coordination.

  • Ans 1: It is a part of fore brain.It is here that many of the sensory stimuli of nervous system are converted into hormonal responses.It is believed that oxytocin and ADH are produced in hypothalamus.
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12th Class Biology Chapter 17 Short Questions Preparation - Set 3

Question # 1

What is cushing's disease? Give its symptoms.

  • Ans 1: In cushing's disease too much cortical hormones are produced. Symptoms include an excessive protein breakdown resulting muscular and bone weakness.
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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

Define biorhythms and gives its types.

  • Ans 1: In living organisms the behavioral activities occur at regular intervals which are called biorhythms.
    1. Circannual rhythms (365 days)
    2. Diurnal rhythms (24 hours)
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12th Class Biology Chapter 17 Short Questions Preparation - Set 6

Question # 1

Differentiate between resting membrane potential and active membrane potential.

  • Ans 1: Resting membrane potential A typical neuron at rest is more positive outside than inside the cell membrane.This net difference in charge between the inner and outer surface of a non-conducting neuron is called resting membrane potential.
  • Ans 2: Active membrane potential In active membrane potential inner membrane surface become more positive than outside.it is from of impulse.This change is so brief that only a portion of it is in active membrane potential.
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12th Class Biology Chapter 17 Short Questions Preparation - Set 7

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

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