Multiple Choice
Passive membrane transport processes include___________.
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6. Cell Membrane & Transport
Passive vs. Active Transport
Multiple Choice
What is the difference between active and passive transport across a membrane?
A
Both active and passive transport move substances down their concentration gradients.
B
Active transport is ATP dependent. Passive transport does not require energy.
C
Active transport requires cell to cell communication. Passive transport does not require cell communication.
D
Active transport can be performed without transport proteins while passive transport cannot.
Verified step by step guidance1
Begin by understanding the basic concept of transport across a cell membrane, which involves the movement of substances in and out of cells.
Identify the two main types of transport: active transport and passive transport. Both are mechanisms cells use to move substances across their membranes.
Recognize that passive transport does not require energy input from the cell. It relies on the natural movement of substances down their concentration gradient, from areas of high concentration to areas of low concentration.
Understand that active transport requires energy, usually in the form of ATP, to move substances against their concentration gradient, from areas of low concentration to areas of high concentration.
Note that active transport often involves transport proteins or pumps, which facilitate the movement of substances across the membrane, whereas passive transport can occur through simple diffusion or facilitated diffusion using transport proteins.
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