Multiple choice

Which of the following processes is/are performed by plants?

  1. Transpiration
  2. Respiration
  3. Guttation
  4. Photolysis

  1. Only 1 and 2

  2. Only 1, 2 and 3

  3. Only 1 and 3

  4. All of these
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

(i) Transpiration is the loss of water from plants in the form of water vapour.

(ii) Plants respire during night time, which involves intake of oxygen and give out carbon dioxide. Plants also respire during day time, which is called photorespiration (but in lesser extent).

(iii) Guttation is the loss of water in the form of water droplets. (iv) Photolysis is the breakdown of water molecules to release oxygen during photosynthesis.

Keep practicing — related questions