Blobooo
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Report Thread starter 9 months ago
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This is question
Read following information about how small intestine absorbs glucose: glucose molecules are absorbed more quickly than xylose molecules but r same size. 50% higher oxygen uptake when in presence of glucose in the small intestine than when absent. Cells lining small intestine have many mitrochondria
Explain how this information provides evidence glucose is absorbed by small intestine using active transport
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izaakha
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This question is just asking you to pick out the evidence from the information. So, it is asking for evidence of active transport, ATP (energy) is required for active transport, so therefore mitochondria (this organelle forms releases the energy from the ATP) will be present. Also, the reason why the oxygen rate is increased in the presence of glucose is because oxygen is needed for respiration - producing the ATP. I think that is all it is asking for. What is the mark?

Are you doing GCSE or A-level at the moment, as glucose isn't directly absorbed by active transport; it is absorbed by co-transport - let me know and I can explain?

If you don't understand, just let me know!
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