Fsc part 2 online preparation for biology chapter 15 (Homeostasis)

Online Short Questions For Chapter 1 "12th Class Biology Chapter 15 Short Questions Preparation "

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Biology - 12th Class Biology Chapter 15 Short Questions Preparation

Question # 1

Define Homeostasis.

  • Ans 1: The protection of internal environment from the harms of fluctuation in external environment is called homeostasis.The homeostasis keeps the internal fluctuation in a narrow range with various control systems compared to wider external fluctuation. The control system would not let the body flooded with water in abundant supply of water.
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Prepare Complete Set Wise Questions For Chapter 1 "12th Class Biology Chapter 15 Short Questions Preparation "

12th Class Biology Chapter 15 Short Questions Preparation - Set 1

Question # 1

Define Homeostasis.

  • Ans 1: The protection of internal environment from the harms of fluctuation in external environment is called homeostasis.The homeostasis keeps the internal fluctuation in a narrow range with various control systems compared to wider external fluctuation. The control system would not let the body flooded with water in abundant supply of water.
Submit

12th Class Biology Chapter 15 Short Questions Preparation - Set 2

Question # 1

Write two types of synthesis functions of liver and effects on homeostasis.

  • Ans 1: Synthesis function of liver include.
    1. Synthesis of urea, ammonia and uric acid. It assists kidney for the removal of wastes.
    2. Synthesis of plasma proteins like proteins like prothrombin and fibrinogen. it maintains osmotic balance of blood and help in blood clotting.
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12th Class Biology Chapter 15 Short Questions Preparation - Set 3

Question # 1

What are heat-shock proteins?

  • Ans 1: Most plants have adopted to survive in heat stress as the plants of temperate regions face the stress of 40°C and above temperature.The cells of these plants synthesize large quantities of special proteins called heat shock proteins.These proteins embrace enzymes and other proteins thus help to prevent denaturation.
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12th Class Biology Chapter 15 Short Questions Preparation - Set 4

Question # 1

What is flame cell Why it is called so?

  • Ans 1: Flame cell is the part of excretory system of planaria.It is called flame cell because it has tuft of cilia, which looks like flickering flame of candle.
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12th Class Biology Chapter 15 Short Questions

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