What is aerenchyma ?

What is meant by aerenchyma?

What is the main function fo collenchyma and aerenchyma ?

In which type of plants aerenchyma is found ?Give example.

The main function of stem are that I it bears and supports foliage, flowers and fruits II it stores food in its aerenchyma cells III It adds new cells tissues and organs every year to keep continuing the functioning of the plant for long periods of time IV Leaf like flattened modified stems are called the thallus Choose the correct option

Plenty of aerenchyma are found in :

Assertion : Aquatic plants contain aerenchyma. Reason : Aerenchyma keeps aquatic plants affloat .