FOOD CHEMISTRY
CARBOHYDRATES PROTEINS AND LIPIDS
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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The cell membrane is selectively permeable, which means ____
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All materials can enter and leave the cell
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Certain things can enter while others cannot
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The cell manually sorts through all materials
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Only certain cells can interact with the cell.
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Explanation:
Detailed explanation-1: -The cell membrane is called selectively permeable as it only allows specific molecules to pass. Only specific molecules like water and gaseous molecules can pass through the cell membrane directly. It stops the flow of other molecules towards the two sides.
Detailed explanation-2: -It is true that a membrane which allows only certain substances to pass through, but does not allow others to pass through it is called a selectively permeable membrane. For example, the plasma membrane of eukaryotic cells.
Detailed explanation-3: -Cell membranes are semipermeable, meaning they have control over what molecules can or cannot pass through.
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