A layer of cells just below the upper surface of most leaves, consisting of cylindrical cells that contain many chloroplasts and stand at right angles to the leaf surface.

What is the palisade layer responsible for?

The palisade layer is therefore mainly responsible for producing food and oxygen for the plant through photosynthesis. Let's go back to our leaf diagram and add in the palisade layer. Remember that it is right below the upper epidermis and contains cells that are cylindrical.

What is the palisade layer made of?

n. A layer below the upper epidermis of a leaf made up of columnar cells that have numerous chloroplasts and are oriented with the long axis of each cell perpendicular to the leaf surface. Also called palisade parenchyma.