Biology, 18.11.2020 23:40 Jcausey4477

8 A cell uses active transport to move molecules across a cellular membrane when F the molecules being transported are too small to be moved by passive transport.
G the cell has built up an excess of waste material it needs to remove.
H the molecules are being moved against a concentration gradient.
J the cell has no available energy it can use for any cellular processes.
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