Question

What cell membrane structure allows water-soluble materials to be passively transported to the cytoplasm?

Answer 1

Answer:

B. Carrier proteins

Explanation:

Water-soluble materials, such as glucose, amino acids, and ions, need help to cross the membrane because they are repelled by the hydrophobic tails of the phospholipid bilayer. The tails are not hydrophilic.

Endocytosis vesicles are an example of active transport, they require energy to allow large molecules to be taken into the cell through a system of vesicles.

Golgi complex vesicles deliver proteins and other macromolecules outside of the cell from the inside.

Carrier proteins can participate in both active and passive transport across cell membranes. For example, carrier proteins with channels can help molecules cross the membrane passively.