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amm1812
3 years ago
5

Two types of transport of molecules across a cell membrane are: Transport 1: Solute molecules move across the cell membrane alon

g their concentration gradient; requires no energy expenditure. Transport 2: Solute molecules move across the cell membrane against their concentration gradient; requires expenditure of energy. Which statement is CORRECT? A) Transport 1 describes passive transport by diffusion. B) Transport 2 describes passive transport by the Na+/K+ pump. C) Transport 2 describes passive transport by a carrier protein. D) Transport 1 describes facilitated transport of substances through the membrane.
Biology
1 answer:
Scrat [10]3 years ago
4 0

The answer is A


Transport 1 describes passive transport by diffusion

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