生物和英语好的来帮我回答问题（问题要用英文回答.要准确）
问题描述：
生物和英语好的来帮我回答问题（问题要用英文回答.要准确）
1.what world means"a thin layer"
2.what world means"allowing only certain things to pass"
3.what are teo factors that decide if something can pass through the cell
4.what world describe the diffusion of water across a membrane
5.what happens to a cell when it placed in salt water
6.define hydrophobic and hydrophilic.which part of the cell membrane is hydrophobic and which part of the cell membrane is hydrophilic?
7.list 4 parts of the human body and compare them to 4 organelles in the cell.give reasons.
强调：
我们这个单元是关于细胞的
全部一定要用英语回答
回答要准确
答
.
太难了