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

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Biology - 12th Class Biology Chapter 17 Short Questions Preparation

Question # 1

Differentitae between reflex arc and reflex action.

  • Ans 1: Reflex arc The path followed by the nerve impulse during the reflex action is called reflex arc.
  • Ans 2: Reflex Action Involuntary actions are called reflex action.This action is performed without the involvement of brain.
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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

Differentitae between reflex arc and reflex action.

  • Ans 1: Reflex arc The path followed by the nerve impulse during the reflex action is called reflex arc.
  • Ans 2: Reflex Action Involuntary actions are called reflex action.This action is performed without the involvement of brain.
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12th Class Biology Chapter 17 Short Questions Preparation - Set 2

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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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

Define synapse.

  • Ans 1: There are the microscopic gaps between the two neurons where neurotransmitters are secreted and nerve impluse is transferred from one neuron to next neuron.
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12th Class Biology Chapter 17 Short Questions Preparation - Set 5

Question # 1

Give two functions of cytokinin hormone.

  • Ans 1: It inhibits primary root growth and promote opening of stomata.
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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

Name the synthetic auxin used as selective weed killer.

  • Ans 1: 2-4D (2,4 Dichlorophenoxy acetic acid)is selective weed killer.
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17th Chapter

12th Class Biology Chapter 17 Short Questions

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