What is the structure of a peripheral protein in the cell membrane?
Cell Membrane Structure

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Biology
•
9th - 11th Grade
•
Hard
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1.
FLASHCARD QUESTION
Front
Back
Peripheral proteins are proteins that are attached to the exterior or interior surfaces of the cell membrane, but do not penetrate the lipid bilayer.
2.
FLASHCARD QUESTION
Front
What is the hydrophobic region of the cell membrane?
Back
The hydrophobic region of the cell membrane is the part that repels water, typically consisting of the fatty acid tails of phospholipids.
3.
FLASHCARD QUESTION
Front
Which macromolecule is NOT part of the cell membrane?
Back
Nucleic Acids are not part of the cell membrane; the membrane is primarily composed of lipids, carbohydrates, and proteins.
4.
FLASHCARD QUESTION
Front
What role does cholesterol play in the cell membrane?
Back
Cholesterol strengthens and stabilizes the cell membrane, making it less permeable to very small water-soluble molecules that might otherwise pass freely through.
5.
FLASHCARD QUESTION
Front
What are the two parts of a phospholipid?
Back
The two parts of a phospholipid are the hydrophilic head and the hydrophobic tail.
6.
FLASHCARD QUESTION
Front
Define the term 'lipid bilayer'.
Back
The lipid bilayer is a double layer of phospholipids that makes up the cell membrane, with hydrophilic heads facing outward and hydrophobic tails facing inward.
7.
FLASHCARD QUESTION
Front
What is the function of glycoproteins in the cell membrane?
Back
Glycoproteins serve as recognition sites for cell signaling and communication, as they have carbohydrate chains attached that can interact with other cells.
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