In what way are the light-dependent and light-independent reactions of photosynthesis similar?
both require chemical energy to proceed.
both occur in the chloroplast.
both produce oxygen as a byproduct.
both involve carbon fixation.

The correct answer is Both occurs in chloroplast.

Chloroplasts are organelle present in plant cell that  serves as the main site for photosynthesis. Both the light-dependent reaction and the light- independent reaction take place occurs in chloroplast. The light-independent reaction or the dark reactions occurs in the stroma, that is the fluid filled area of the chloroplast. The light dependent reaction takes place in the thylakoid membrane

where in your body is there an enzyme that does function at a high or low ph? what is the name of that enzyme and its function?