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Question

Which among the following helps in photosynthesis?
  1. Spongy parenchyma
  2. Sclerenchyma
  3. Chlorenchyma
  4. Aerenchyma


Solution

The correct option is C Chlorenchyma
Parenchyma is an example of a simple living tissue. It is the most commonly found tissue. It has different functions depending on its characteristics. As chlorenchyma, with chloroplasts in the cells, it helps in photosynthesis.

When there are very large intercellular spaces, it is called as aerenchyma and this helps in buoyancy in hydrophytes.
When there are considerable intercellular spaces as in spongy parenchyma, it helps in the exchange of gases and in transpiration.

Sclerenchyma is a simple dead mechanical tissue. The cell wall is made up of cellulose and lignin. It is not permeable to water. It provides rigidity to the plants.

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