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Questions and Answers
Which of the following is true about the cell membrane?
Which of the following is true about the cell membrane?
- It consists of a single layer of phospholipids.
- It does not contain any membrane proteins.
- It contains cholesterols interspersed between phospholipids. (correct)
- It is impermeable to ions and organic molecules.
What is the role of integral proteins in the cell membrane?
What is the role of integral proteins in the cell membrane?
- They serve as membrane transporters. (correct)
- They facilitate interaction with the cell's environment.
- They loosely attach to the outer side of the cell membrane.
- They control the movement of substances in and out of a cell.
Which component of the cell membrane helps maintain appropriate membrane fluidity?
Which component of the cell membrane helps maintain appropriate membrane fluidity?
- Cholesterols (correct)
- Integral proteins
- Peripheral proteins
- Glycolipids
What is the function of peripheral proteins in the cell membrane?
What is the function of peripheral proteins in the cell membrane?
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What is the role of glycolipids in the cell membrane?
What is the role of glycolipids in the cell membrane?
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Which type of active transport uses ATP as a source of energy?
Which type of active transport uses ATP as a source of energy?
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What is the main difference between active transport and passive transport?
What is the main difference between active transport and passive transport?
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What are the two types of active transport mentioned in the text?
What are the two types of active transport mentioned in the text?
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Which physiological processes rely on active transport?
Which physiological processes rely on active transport?
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What is the role of the sodium-potassium pump in active transport?
What is the role of the sodium-potassium pump in active transport?
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