Question

Choose the correct statements with respect to plant tissues.

• A. Chlorenchyma is involved in photosynthesis.
• B. Stomata regulates gaseous exchange.
• C. Root hair increase the surface area for absorption.
• D. Sclerenchyma is a hard, non lignified and dead tissue.

Answer 1

Answer: (A), (B), (C)

The correct options are
A Chlorenchyma is involved in photosynthesis.
B Stomata regulates gaseous exchange.
C Root hair increase the surface area for absorption.

• The parenchyma which contains chloroplasts is called chlorenchyma. It is involved in the process of photosynthesis.
• Epidermis of the aerial part of the plant contains numerous minute pores called stomata. They regulate transpiration and exchange of gases.
• Root hair help in the absorption of water and nutrients through the diffusion process. They increase the surface area for absorption.
• Sclerenchymatous cells are generally dead. As the cell matures, high levels of lignin gets deposited in their walls making it impermeable to water, thus making the cell dead.