to absorb nutrients and gases from blood to extract energy from food to sustain life to produce food using water and carbon dioxide to give shape and structural support to an organism
I gave my students this multiple choice question: Which of these is a function of all cells?

Only one answer is correct among these 4 choices:
- to absorb nutrients and gases from blood
- to extract energy from food to sustain life
- to produce food using water and carbon dioxide
- to give shape and structural support to an organism

Could you tell me which one is correct?

to extract energy from food to sustain life