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Levart [38]
3 years ago
9

This causes substances to move across the cell membrane, against the concentration gradient.

Biology
1 answer:
salantis [7]3 years ago
5 0
The correct answer is active transport. Active transport entails movement of substances against a concentration gradient and requires use of energy in form of ATP and use of protein pumps. Active transport is used to enhance several activities in the body such as movement of nutrients from the small intestines to the blood stream, this ensures that all the nutrients have moved from the lumen,
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