Multiple choice

Which of the following is/are the function(s) of transpiration in plants?

  1. Upward movement of water from roots to leaves
  2. To provide cooling effect to plant
  3. To maintain the balance of water in plant body
  4. To absorb nutrients from soil

  1. Only 1

  2. Only 2

  3. Only 1, 2 and 3

  4. Only 2 and 4
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

Statement 1 is correct. Transpiration is responsible for the movement of water from roots to leaves by ascent of sap.

Statement 2 is correct. Transpiration provides cooling effect to plants because the escaping water vapour carries away the heat energy.

Statement 3 is correct. Transpiration maintains the level of water in plant body.

Statement 4 is wrong. Plants absorb nutrients from soil by root pressure. 

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