vesicles

Example:The bulbs in onions are fleshy and bulbous, analogous in structure to vesicles but not biological.

Definition:Round, sac-like structures, similar in shape to vesicles, but not necessarily in a living context.

Example:Bladders are sac-like structures that hold urine; vesicles serve a similar function but are typically much smaller and within a cell.

Definition:A small sac-like structure, often found in animals, used for holding substances such as water or urine.

Example:Sac-like structures such as vesicles are involved in various biological processes.

Definition:Any small, enclosed, and generally flexible or inflated body, often used in the context of containing fluid or other substances.