BI-401
Diffusion
Biology · Secondary 3 · Hard · Diffusion
The concentration of glucose in the lumen of a student’s small intestine is lower than that in the blood capillaries of the villi.
Which statement best describes how glucose moves in this situation?
Which statement best describes how glucose moves in this situation?
- Glucose diffuses into the blood down the concentration gradient.
- Glucose diffuses from the blood into the intestine down the concentration gradient.
- Glucose is absorbed into the blood against the concentration gradient by active transport.
- There is no net movement of glucose until the intestinal concentration increases.
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