THE CELL
TRANSPORT INTO AND OUT OF THE CELL
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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maintains a stable internal environment through homeostatis
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it controls what enters and leaves the cell
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It blocks some molecules while allowing others
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it creates phospholipids
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Detailed explanation-1: -Phospholipids are free to diffuse within the hydrophobic core of membranes but not from one lipid-rich region on one surface to an adjacent lipid-rich region on the other surface. Thus, the correct answer is option D.
Detailed explanation-2: -Therefore the correct answer is D) controlling movement into the nucleus since the cell membrane is not responsible for this function.
Detailed explanation-3: -Final answer: d) Carbohydrate is never found in it.
Detailed explanation-4: -Membrane transport proteins are made up of phospholipids. This statement is false. Membrane transport proteins are made up of amino acids covalently bound together. Phospholipids make up most of the plasma membrane, but they do not makeup transport proteins.