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ICSE Class 7 Biology Question 15 of 16

Photosynthesis and Respiration — Question 2

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Question

Question 2

Define the following terms :

  1. Autotrophs
  2. Photosynthesis
  3. Respiration
  4. Vascular system
  5. Stomata
Answer

  1. Autotrophs — Green plants can prepare their own food, hence they are called autotrophs.

  2. Photosynthesis — Photosynthesis is the process by which green plants capture solar energy and use it to convert carbon dioxide and water into simple sugars.

  3. Respiration — Respiration is the process in which glucose is broken down to release energy.

  4. Vascular system — All plants have a transport system called vascular system made of xylem, which carries water and minerals from roots to leaves, and phloem, which transports glucose from leaves to other parts of the plant.

  5. Stomata — Stomata are tiny openings found mainly on the lower surface of the leaves that allow gases to pass in and out.