what is aerenchyma ? state its functions.

parenchymatic tissues present in aquatic plants are known as aerenchyma.these tissues provides buoncy to the aquatic plants.

  parenchymatic tissues present in aquatic plants are known as aerenchyma.these tissues provides buoncy to the aquatic plants which helps them to float on the surface of the water.

The parenchymatic tissue that contains air cavities in them are called Aerolar Tissues.They are present in aquatic plants like water lily and enable them to float on water.

The  type  of  Parenchyma  tisuue  that  has  air  sacks  filled  with  air  are  called  aerenchyma  tissue.  these  tissues  help  in  the  buoyancy  of  plants.

Aerenchyma refers to spaces or air channels in the leaves, stems and roots of some plants, which allows exchange of gases between the shoot and the root.^[1]

 The channels of air-filled cavities (see image to right) 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. Aerenchyma is widespread in aquatic and wetland plants which must grow in hypoxic soils

its funtion are

Aerenchyma is made of many large air filled cavities in the submerged parts of some marsh plants - it gives the submerged parts access to a supply of air.Aerenchyma is made of many large air filled cavities in the submerged parts of some marsh plants - it gives the submerged parts access to a supply of air.