Biology Quiz: Identify the Correct Description of Passive Transport

Question

7. Paragraph 5: Which statement best describes passive transport? A. Uses energy to move materials B. Moves substances from low to high concentration C. Moves substances without energy from high to low concentration D. Only occurs in plant cells

Accepted Answer

C

Answer

Step 1: Recall the definition of passive transport: It is a type of cell membrane transport that does not require cellular energy (ATP), relying instead on the concentration gradient of the substance. Step 2: Eliminate incorrect options: A describes active transport; B is the direction of active transport; D is wrong because passive transport occurs in all eukaryotic and prokaryotic cells. Step 3: Confirm that option C matches the core traits of passive transport: no energy required, movement down the concentration gradient (high to low).