Question

a. label the following on the lipid bilayer diagram: integral proteins, peripheral protein, glycoprotein, cholesterol, phospholipid, channel protein, carrier protein.
b. complete the venn diagram to compare active and passive cell transport

Explanation:

Part A:

Integral proteins span the lipid bilayer. Peripheral proteins are attached to the surface. Glycoproteins have carbohydrate chains attached. Cholesterol is inter - spersed in the bilayer. Phospholipids form the basic structure of the bilayer. Channel proteins have a pore for molecule passage. Carrier proteins change shape to transport molecules.

Part B:

In passive transport, substances move down a concentration gradient without energy use. In active transport, substances move against a concentration gradient with energy (ATP) use. Common features may include movement of substances across the cell membrane and involvement of transport proteins in some cases.

Answer:

Part A:

(Please label on the diagram according to the above descriptions. For example, the protein that spans the bilayer is integral protein, the one on the surface is peripheral protein, the one with a chain - like structure attached is glycoprotein, the small round structures inter - spersed are cholesterol, the basic double - layer structure is made of phospholipids, the one with a hole is channel protein and the one that seems to change shape for transport is carrier protein).

Part B:

Passive Transport circle: Moves substances down concentration gradient; No energy (ATP) required; Examples: diffusion, osmosis.
Active Transport circle: Moves substances against concentration gradient; Energy (ATP) required; Examples: sodium - potassium pump.
Intersection: Movement across cell membrane; May involve transport proteins.