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If the sugar concentration in a cell is 4% and the concentration in the cell's
environment is 2%, how can the cell obtain more sugar?
A. Sugar can diffuse straight through the phospholipid bilayer.
B. Sugar can undergo facilitated diffusion through a channel protein and no
energy is required.
C. The cell CANNOT obtain any more sugar. It is doomed,
D. The cell must use active transport to pump the sugar in. Energy is
required.
Answers: 3
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