In Passive Processes, Substances Move Across the Plasma Membrane 1

question 12

Multiple Choice

In passive processes, substances move across the plasma membrane 1. with the use of ATP
2) up (or against) a concentration gradient
3) down (or along) a pressure gradient
4) equally in all directions

• A) 3 only
• B) 2 only
• C) 1, 2, 3
• D) 2, 3, 4

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