cell wall chloroplast mitochondrion nucleus
I gave my students this multiple choice question: A student prepared the following list of characteristics about a cellular organelle. present in animal cells present in plant cells helps make energy available to the cell Which of the following cellular structures is the student describing?

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

Could you tell me which one is correct?

mitochondrion