Question

Number of stomata present per cm${}^2$ of a common leaf is about

• A. Less than 100
• B. More than 100,000
• C. 1 million
• D. 10000

Answer 1

The correct option is D 10000

Stomata are small openings on the leaves which helps in transpiration and gaseous exchange. The cells of stomata are known as guard cell. Number of stomata present per cm${}^2$ of a common leaf is about 1000. The lower epidermis of the leaf tends to have greater number of stomata than the upper surface. The highest number of stomata is 1200 per square mm on leaves of the Spanish oak tree.

So, the correct answer is option D.