O-LevelBiologyCell Biology5090/11 · May/June 2013 · Q21 Mark
What is an example of active transport?
Amovement of glucose molecules into the cells of the villi
Bmovement of glucose molecules down a concentration gradient
Cmovement of ions in blood plasma
Dmovement of water in the transpiration stream
✓ Correct answer
A: movement of glucose molecules into the cells of the villi
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