Living Processes of Multicellular Organisms (4)

Biology

Not quite remember

I easily remember

Function of palisade mesophyll cell

This arrangement allows maximum absorption of sunlight for photosynthesis

Shape of spongy mesophyll cell

Cells are loosely arranged with lots of air space in between

Function of spongy mesophyll cell

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

Function of guard cell

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

Function of guard cell

Controls the opening and closing of the stoma

Stoma

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

Shape of root hair cell

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

Cell organisation in humans (1)

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

Cell organisation in humans (2)

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

Tissues

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

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