CELL STRUCTURES AND FUNCTION
CELL ORGANELLE
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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To keep the shape of the cell
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to protect the cell from harm
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allow certain materials into and out of the cell
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attract other cells
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Detailed explanation-1: -One is to transport nutrients into the cell and also to transport toxic substances out of the cell. Another is that the membrane of the cell, which would be the plasma membrane, will have proteins on it which interact with other cells.
Detailed explanation-2: -Cell membranes are an example of semi-permeable membranes. Cell membranes allow small molecules such as oxygen, water carbon dioxide, and oxygen to pass through but do not allow larger molecules like glucose, sucrose, proteins, and starch to enter the cell directly.
Detailed explanation-3: -The cell membrane controls what moves in and out of the cell. Cell membranes only allow some solutes (solids) to move across it. Movement across the membrane depends on size and type of the solute (solid).
Detailed explanation-4: -Just as the outer layer of your skin separates your body from its environment, the cell membrane (also known as the plasma membrane) separates the inner contents of a cell from its exterior environment. This cell membrane provides a protective barrier around the cell and regulates which materials can pass in or out.