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

Give effects of nicotine on blood vascular system and digestive system in man.

  • Ans 1: It increases the heart beat rate,blood pressure and digestive tract mobility Nicotine may induce vomiting and diarrhoea and even may cause water retention relation by kidneys.
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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

Give effects of nicotine on blood vascular system and digestive system in man.

  • Ans 1: It increases the heart beat rate,blood pressure and digestive tract mobility Nicotine may induce vomiting and diarrhoea and even may cause water retention relation by kidneys.
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12th Class Biology Chapter 17 Short Questions Preparation - Set 2

Question # 1

How brain is protected with various covers?

  • Ans 1: Cranium protects the brain.Beneath the cranium brain is protected by triple layer of meninges.Between the meninges there is filled cerebrospinal fluid which act as shock absorber.
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12th Class Biology Chapter 17 Short Questions Preparation - Set 3

Question # 1

What is meant by division of labour ?

  • Ans 1: Division of labour means a specific type of cells can perform a specific type of function.Like muscle cells contract and relax,glandular cells produce secretions, phloem can transport food.
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12th Class Biology Chapter 17 Short Questions Preparation - Set 4

Question # 1

Give role of human gut as endocrine tissue.

  • Ans 1: Human gut act as endocrine gland. Important hormones produced by gut are Gastrin: This hormone is produced by mucosa of pyloric region of the stomach. It stimulates the production of gastric juice. It produced under the influence of protein in the food.
  • Ans 2: Secretin: It produced from the duodenum when the acidic food from the stomach touches its lining. Affect the pancreas to produce and secrete pancreatic juice and also affect rate of bile production in the liver.
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12th Class Biology Chapter 17 Short Questions Preparation - Set 5

Question # 1

What is meant by resting membrane potential?

  • Ans 1: 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.
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12th Class Biology Chapter 17 Short Questions Preparation - Set 6

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 7

Question # 1

Give the role of insulin and glucagon.

  • Ans 1: Insulin controls the blood sugar level by different ways.It may be as
  • Ans 2: By converting glucose in to glycogen
  • Ans 3: By converting glucose in to proteins or fats
  • Ans 4: By increasing its utilization in the cell
  • Ans 5: By inhibiting the conversion of glycogen in to glucose
    Glucagon increases the blood sugar level. This is done by converting stored glycogen in to glucose.
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12th Class Biology Chapter 17 Short Questions

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