Question

membrane - bound organelles in plant cells that perform cellular functions such as photosynthesis (chloroplasts) or making and storing pigments (chromoplasts) are knows as

Explanation:

These membrane - bound organelles in plant cells with functions like photosynthesis and pigment - related tasks are called plastids. Plastids are a class of organelles unique to plant cells and some protists. Chloroplasts and chromoplasts are types of plastids.

Answer:

Plastids