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Question

Choose the correct statements with respect to plant tissues.
  1. Chlorenchyma is involved in photosynthesis.
  2. Stomata regulates gaseous exchange.
  3. Root hair increase the surface area for absorption.
  4. Sclerenchyma is a hard, non lignified and dead tissue.


Solution

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.

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