Question

multiple choice question
integral proteins tend to make excellent ______.

• capsules, because they form a protective layer on the membrane
• transporters, because they span the plasma membrane
• adhesins, because they extend outside the cell to attach to solid substrates

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Explanation:

Integral proteins are embedded fully across the plasma membrane, a structure that allows them to facilitate the movement of substances across the membrane, making them ideal transporters. Capsules are not integral proteins, and adhesins are typically peripheral or surface proteins, not the primary role of integral proteins.

Answer:

transporters, because they span the plasma membrane