The cellular process in which materials are moved across a membrane from an area of low concentration to an area of high concentration is called
A. Osmosis
B. Simple Diffusion
C. Active Transport
D. Passive Transport
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Cells need to bring in molecules to carry out cellular processes. Often, this requires moving the molecules across the cell membrane against the concentration gradient. How do these molecules get into the cell?
A. passive transport by diffusion
B. active transport using ATP
C. passive transport by osmosis
D. osmosis
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