Visking tubing is an artificial partially permeable membrane used to demonstrate diffusion. Glucose molecules can pass through the pores in the membrane which are approximately 2.4 nm in diameter.
Which of the following could pass through the pores?
1 bacteria
2 haemoglobin
3 ribosomes
4 glycogen
1 )
1 and 3
2 )
2 and 4
3 )
2 only
none of the above
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