Question

which organelle do alga need in order to conduct photosynthesis?
chloroplast
nucleus
solar transformer
mitochondrion
cell membrane

Explanation:

Chloroplasts contain chlorophyll which is essential for photosynthesis. Nucleus contains genetic material, solar - transformer is not a biological organelle, mitochondrion is for cellular respiration, and cell membrane is for cell protection and transport.

Answer:

A. chloroplast