[问答题]
1.Outline the effects of placinndb7w/-nu.- , dtl dmyg a liver cell in a hypo/.4f1/zop s)fk xsep0 ho ow,ptonic solution.
2.Outline how the fluidity of membranes allows materials to be taken into cells or to be released from cells.
3.Compare and contrast four types of membrane transport. Include an example of each.