[Campbell Biology P.176] Based on Figure 7.3, which statement about the components of the an... | Practice Question

Based on Figure 7.3, which statement about the components of the animal cell plasma membrane is correct?

  • A: Proteins are primarily located on the cytoplasmic side and are colored green.
  • B: Lipids (phospholipids and cholesterol) are colored gray and gold, forming the bilayer.
  • C: Glycolipids and glycoproteins are primarily involved in providing structural support via the cytoskeleton.
  • D: The extracellular matrix (ECM) is located on the cytoplasmic side of the membrane.

Explanation

Figure 7.3 explicitly states and shows that lipids phospholipids and cholesterol are colored gray and gold, forming the fundamental bilayer structure of the plasma membrane. Proteins are purple, and carbohydrates are green. The ECM is on the extracellular side, and the cytoskeleton is on the cytoplasmic side.