13. What did you see when you look under the microscope at the bottom side of the leaf?

When leaf is observed under the microscope stomata are mainly seen apart from guard cells.

Explanation:

The epidermal layer is found after tearing of the leaves and stained with saffranin and observed under microscope.

The stomata is a small opening or pores present at the base of plant leaf responsible for movement of water nag gases from the intercellular spaces. Stomata is the organ of the plant for the process of transpiration.

The stomata is present in the epidermal layer. Lower surface has more number of stomata.

when observed under compound microwave number of stomata can be observed.

bacterium is not correct