Question

1. the diagram below shows how membrane vesicles can move molecules between membranes. a. explain what is happening to the vesicle at point a: b. explain what is happening to the vesicle at point b: c. explain what is happening to the vesicle at point c:

Explanation:

a. At point A, the vesicle is budding off from the membrane. This is likely due to the concentration of molecules (represented by stars) on the membrane which causes the membrane to invaginate and form a vesicle.
b. At point B, the vesicle is in transit, moving away from the original membrane. It has pinched - off completely and is now a separate entity in the cytoplasm.
c. At point C, the vesicle is fusing with another membrane. The vesicle membrane and the target membrane merge, releasing the molecules (stars) into the new compartment.

Answer:

a. The vesicle is budding off from the membrane due to molecular concentration.
b. The vesicle is in transit, having pinched off from the original membrane.
c. The vesicle is fusing with another membrane to release molecules.