Question

which cellular structure is unique to plant cells?
plasma membrane
mitochondria
ribosome
chloroplast

Explanation:

Plasma membrane is present in both plant and animal cells, serving as a cell - boundary. Mitochondria are the power - houses of the cell and are found in both types of cells for energy production. Ribosomes are involved in protein synthesis and are common to both. Chloroplasts are organelles that carry out photosynthesis and are unique to plant cells.

Answer:

D. chloroplast