問題詳情
23.The concentration of calcium in a cell is 0.3%. The concentration of calcium in the surrounding fluid is 0.1%. How could the cell obtain more calcium?
(A) passive transport
(B) diffusion
(C) active transport
(D) osmosis
(E) all of the above
(A) passive transport
(B) diffusion
(C) active transport
(D) osmosis
(E) all of the above
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