試題詳解

25. Which of the following statement(s) is correct regarding to the membrane transport?
1. Integral membrane protein is likely to contain one or more hydrophobic segments, 20-30 amino acids long.
2. Exocytosis involves the cell engulfing matter from the outside environment.
3. The voltage-gated potassium channels associated with an action potential provide an example of coupled transport
(A) 1 and 3
(B) 2 and 3
(C) 1 only
(D) 1 and 2
(E) All of above are correct.