Question

Gaseous exchange in plants occurs through:

• A. Chloroplast
• B. Stomata
• C. Waxy cuticle
• D. Bulliform cell

Answer 1

Answer: (B)

Stomata

A stomata is a pore, found in the epidermis of leaves, stems and other organs, that is used to control gaseous exchange by diffusion. Bulliform cells are large, bubble-shaped epidermal cells that occur in groups on the upper surface of leaves of many kinds of grass and causes leaves to roll up due to loss of turgor pressure. Chloroplast's main role is to conduct photosynthesis, where the photosynthetic pigment, chlorophyll captures the energy from sunlight. Waxy cuticles help in the preventing water loss.

So, option B is correct.