OBJECTIVE LIFE SCIENCE
CELL BIOLOGY
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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Regulate energy production
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Keeps the cell’s shape
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Control what enters and leaves the cell
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Maintain a free flow of molecules
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Detailed explanation-1: -2. The selectively-permeable cell membrane protects the cell. It maintains the balance in the internal environment of the cell by transporting the toxic substances outside the cell and bringing the nutrients inside the cell.
Detailed explanation-2: -Cell membrane: The cell membrane contains the contents of the cell and provides a barrier to control what enters and leaves the cell. The cell membrane is often described as “selectively permeable” as it allows some but not all substances across (permeable) and can choose which substances can pass across (selective).
Detailed explanation-3: -The Cellular Membrane The cell membrane is selectively permeable to ions and organic molecules and controls the movement of substances in and out of cells. The basic function of the cell membrane is to protect the cell from its surroundings. It consists of the phospholipid bilayer with embedded proteins.