I posted this before, but I got all different answers from people:
Is this the correct order from smallest to largest?
H2O, glucose, membrane pores, starch.
If not, what is? Thanks!!
2006-10-21 04:20:20 · 2 answers · asked by Avigail 3 in Science & Mathematics ➔ Biology
I think I've already answered this question; the order you are mentioning is the correct.
I don't understand why some people insist on considering glucose molecules larger than membrane pores. When we are talking about dialysis membranes the pores are bigger, that's why dialysis is used to remove small molecules like glucose, nucleotides, organic bases, etc from biological samples.
If we are talking about living cells the situation is more complicated since you have transporters, channels, etc and not simple pores of the same size. The term pores does not apply for the cell membrane (the closest you can get is porins, which anyway have bigger diameter than glucose).
2006-10-21 09:45:29 · answer #1 · answered by bellerophon 6 · 0⤊ 0⤋
H20, membrane pores, glucose, and starch being the largest.
2006-10-21 11:26:21 · answer #2 · answered by voidedius 3 · 0⤊ 0⤋