If you could tell me what cell it would be easier. Sorry I have to post it on Answer but I't does not show the commentary or whatever you guys call it.
Answer:
Some of these proteins serve to transport materials into or out of the cell. Carbohydrates are attached to some of the proteins and lipids on the outward-facing surface of the membrane. These form complexes that function to identify the cell to other cells.
Answer:
A plant's stem is what the plant uses to carry water and nutrients up or down. It also supports the plant and conducts glucose to other parts of the plant.
Explanation: