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What is the function of the cell membrane?
What is the function of the cell membrane?
- Creates a barrier to prevent the entry of ions and organic molecules
- Produces electric impulses for the whole organ metabolism
- Gives the cell shape and keeps the composition of the cell inside (correct)
- Surrounds the nucleus and other organelles
What is the role of phospholipids in the cell membrane?
What is the role of phospholipids in the cell membrane?
- Produce electric impulses for cell communications
- Control the movement of substances in and out of cells
- Are responsible for transporting substances across the membrane
- Link fatty acids together to strengthen the membrane (correct)
Which type of protein usually spans from one side of the phospholipid bilayer to the other?
Which type of protein usually spans from one side of the phospholipid bilayer to the other?
- Peripheral protein
- Integral protein (correct)
- Receptor protein
- Transport protein
What is the main function of the peripheral proteins in the cell membrane?
What is the main function of the peripheral proteins in the cell membrane?
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What does the term 'selectively permeable' refer to in relation to the cell membrane?
What does the term 'selectively permeable' refer to in relation to the cell membrane?
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