Cells are loosely arranged with lots of air space in between

Large air space allows exchange of gas from the inside of the leaves to the palisade mesophyll cells

Modified lower epidermal cells with the thicker cell wall on the inner side

Controls the opening and closing of the stoma

Is the opening that allows the exchange of oxygen and carbon dioxide

Has a long projection which adds surface area for the absorption of water and mineral salts

Multicellular organisms (such as humans) consist of different types of cells with specific functions

In multicellular organisms, cells of the same type and carrying out the same function are organized into tissue

A group of cells that have the same structure and function and are arranged together to carry out a specific function