chloroplast and mitochondrion mitochondrion and cell wall chloroplast and nucleus nucleus and cell wall
I gave my students this multiple choice question: Which two plant cell structures are responsible for storing energy from sunlight and later releasing it for cells to use?

Only one answer is correct among these 4 choices:
- chloroplast and mitochondrion
- mitochondrion and cell wall
- chloroplast and nucleus
- nucleus and cell wall

Could you tell me which one is correct?

chloroplast and mitochondrion