Multiple choice

In which of the following, stem modifications help in photosynthesis?

  1. Twiner

  2. Thorns

  3. Phylloclade

  4. Bulbil
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

If the stem does photosynthesis, then it is called a phylloclade. It is flat, green and thick. It is flat for increasing the surface area, thick for storing water and green for photosynthesis. The leaves are modified into spines to reduce transpiration (evaporation of water from aerial parts of the plant). Cuticle is an outer covering which is present for preventing transpiration.

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