Check your understanding. What did you include in your answer? A cell membrane, seen in plant and animal cells, is selectively permeable and made of a phospholipid bilayer.

The cell membrane and cell wall control what enters and leaves the cell.

The cell wall is seen in a plant cell, gives shape to the cell, and stores carbohydrates.

The cell wall is selectively permeable and made of cellulose, which causes plants to have a rigid structure.

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Question:

Compare and contrast a cell membrane and cell wall.

A cell membrane, seen in plant and animal cells, is selectively permeable and made of a phospholipid bilayer.

Explanation:

An animal cell is surrounded by a cell membrane. A plant cell is surrounded by both a cell membrane and a cell wall.

The cell membrane is made of a phospholipid bilayer. selectively permeable - allowing the entrance and exit of some molecules but not others. The cell wall is freely permeable.

The cell wall protects the plant cell and gives it shape and structure. It is made of cellulose.

answer; ///(b) it is composed of four protein chains and four heme groups;

im not intirely sure but i think the anwser is d relative humidity