Since due to having the coronavirus, the immune system is already tired of fighting off such a tough disease. Since it's so weak, one small bacteria can make your body react to it in ways you wouldn't think it may, because the immune system isn't working much.
Oxygen is the answer for this question.
Explanation:
1.cell membrane far apart from the cell wall thats why the plant cells shrinked
3.cell walls are made of cellulose while cell membrane made of phospholipid.
4.water and nutrien cant enter by diffusion because the molecule is too big.
I HOPE THIS HELPS TELL ME IF IM WRONG ^^