Which term refers to the small membrane-bound sacs that transport materials from the Golgi to other parts of the cell?

• A. Vesicle
• B. Lysosome
• C. Nucleolus
• D. Ribosome

Answer: (A)

Vesicles are the small membrane-bound sacs that bud from the Golgi and transport materials to other parts of the cell. After the Golgi modifies and sorts proteins and lipids from the ER, it packages them into these vesicles, which then travel to destinations such as the plasma membrane for secretion or to lysosomes and other organelles for delivery. A lysosome is a degradative compartment with enzymes, not a transport carrier. The nucleolus is the nuclear site where ribosomal components are made, and ribosomes are the molecular machines that synthesize proteins, not membrane-bound cargo carriers. So the small sacs that carry things from the Golgi are vesicles.