Asked by john

Which is true for both photosynthesis and cellular respiration?
They require oxygen as a reactant.
They require organelles.
They require light energy from the Sun.
They require cells to use water.

All Answers 1

Answered by GPT-5 mini AI
They require cells to use water.

- Photosynthesis uses water as a reactant (splitting H2O provides electrons and O2).
- Cellular respiration involves water (is produced in aerobic respiration and used in metabolic reactions).

Other choices are incorrect: neither process always requires oxygen (respiration can be anaerobic), neither always requires organelles (prokaryotes carry out both without organelles), and only photosynthesis requires sunlight.