Which of the following statements regarding animal cell membrane is <strong>CORRECT</strong>?
- A. They are composed of phospholipids only.
- B. They are composed of proteins only.
- C. They are composed of phospholipids and proteins only.
- D. They are composed of phospholipids, proteins and cholesterol (lipid). ✓
Correct Answer: D. They are composed of phospholipids, proteins and cholesterol (lipid).
Explanation
Animal cell membranes are fluid mosaics composed primarily of a phospholipid bilayer, embedded proteins, and cholesterol which helps regulate membrane fluidity.
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