Why? If the word " molecules " refer to the solvent ones, then osmosis is the answer. In this sentence, that word obviously refer to either the solvent or solute molecules, perhaps even both of them. So what do you think? Which is correct? Please give reasons.
更新1:
Low concentration here although means the solute concentration is low, and same as the another one, the molecules can be either solute of solvent. "只有active transport先係molecules由low con.去high con. "
更新2:
Why? Higher conctration = low water potential, low concentration = high water potential. If you substitude, then osmosis 先係molecules由high water potential去low water potential.
更新3:
So you are saying that water is not any molecule? H2O is a molecule.
更新4:
IF you ever studied chemistry you should know that water is a type of molecules.
更新5:
water molecule is molecule