BI-388
Diffusion
Biology · Secondary 3 · Hard · Diffusion
A student investigates absorption of digested food with and without oxygen. The results (arbitrary units) are:
Glucose: with O = 8.0, without O = 3.0
Fatty acids: with O = 2.0, without O = 2.1
What conclusion is best supported?
Glucose: with O = 8.0, without O = 3.0
Fatty acids: with O = 2.0, without O = 2.1
What conclusion is best supported?
- Both glucose and fatty acids are absorbed only by diffusion
- Both glucose and fatty acids are absorbed only by active transport
- Glucose is absorbed mainly by active transport; fatty acids mainly by diffusion
- Glucose and fatty acids are absorbed equally by active transport
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