Question

what is aerenchyma? why is it essential in aquatic plants?

Answer 1

Answer:

Aerenchyma helps in buoyancy and respiration. It is characteristically found in aquatic floating plants. ... The channels of air-filled cavities provide a low-resistance internal pathway for the exchange of gases such as oxygen and ethylene between the plant above the water and the submerged tissues.

Explanation:

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Answer 2

explanation 1

Aerenchyma helps in buoyancy and respiration. It is characteristically found in aquatic floating plants. ... The channels of air-filled cavities provide a low-resistance internal pathway for the exchange of gases such as oxygen and ethylene between the plant above the water and the submerged tissues.

explanation 2

Aerenchyma is a tissue composed of a network of interconnected gas conducting intercellular spaces which provide plant roots with oxygen under hypoxic conditions. There are two types of aerenchyma: lysigenous, formed by collapse and programmed death of certain cells in the cortical region of the root to form air-filled cavities