Question

Fill in the blanks by choosing suitable words from the brackets:

b. The __________ surface of a dicot leaf contains more stomata. (upper/lower)

• A. Upper
• B. Lower

Answer 1

Stomata:

1. Stomata are the small pores on the surface of leaves through which water is lost by the process of transpiration.
2. Plants show various kinds of adaptations to reduce water loss through transpiration.
3. In the leaves of dicotyledonous plants, there is more number of stomata present on the lower surface as compared to the upper surface to reduce the rate of transpiration.
4. The lower surface of leaves is less exposed to sunlight as compared to the upper surface, so there are more stomata present on the lower surface of a dicot leaf.

Final answer: The lower surface of a dicot leaf contains more stomata.