Question

Has large air spaces

Answer 1

These are branched and adjacent cells are connected with each other by means of the branches. Parenchyma composed of branched cells is highly lacunose; that is, it has a large volume of intercellular space. ... The term Aerenchyma is often used to describe parenchyma, which has large air spaces.

Answer 2

Irregularly shaped cells with air spaces between them. This layer consists of irregularly shaped cells with large air spaces between them allowing gas exchange (diffusion) between stomata and photosynthesising cells. These allow gases to diffuse in and out of the leaf.