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

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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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 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 2

Question # 1

What is action of nicotine on coordination?

  • Ans 1: Nicotine affects post synaptic membrane in CNS and PNS.It minimizes the action of acytylcholine on the nicotine receptors.So it is sitmulant of nerve impluse. It increases the heart beat rate,blood pressure and digestive tract mobility. Nicotine may cause vomiting,diarrhoea and even cause water retention relation by the kidneys.
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12th Class Biology Chapter 17 Short Questions Preparation - Set 3

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 4

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 5

Question # 1

What are meissner's corpuscles?

  • Ans 1: Meissner's corpuscles (encapsulated endings) which lie in papillae which extend into the ridges of the finger tips.The corpuscles consists of spiral and much twisted endings,each of which ends in knob.These are touch receptors.
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12th Class Biology Chapter 17 Short Questions Preparation - Set 6

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 Preparation - Set 7

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

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