BI-1795
The digestive system
Biology · Secondary 4 · Easy · The digestive system
The inner surface of the small intestine is lined with villi and microvilli. How does this structure speed up the absorption of glucose into the blood?
- They provide a large surface area and short diffusion distance for absorption.
- They decrease the surface area to slow down absorption.
- They store glucose until it is needed by the body.
- They secrete hormones that digest glucose into amino acids.
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