Question

modeling light - dependent reactions chloroplast stroma ferredoxin - nadp reductase which corrections would change the diagram to accurately model the light - dependent reaction of photosynthesis? check all that apply. chemical energy nadp+ h+ nadph h+ co2 should be changed to h2o. atp pi adp ferredoxin adp and atp need to be switched. e - should be changed to h+. adp synthase chemical energy should be changed to light energy. psii psi psii and psi need to be switched. oxygen - evolving complex thylakoid lumen

Explanation:

In light - dependent reactions of photosynthesis, water ($H_2O$) is the starting molecule instead of $CO_2$, light energy is converted to chemical energy, and the electron flow is as $e^-$ not $H^+$. Photosystem II (PSII) comes before Photosystem I (PSI) in the electron - transfer chain. ADP is phosphorylated to ATP.

• In light - dependent reactions, $H_2O$ is split, not $CO_2$, so $CO_2$ should be changed to $H_2O$.
• ADP is converted to ATP, not the other way around, so no need to switch ADP and ATP.
• $e^-$ is involved in the electron - transport chain, not $H^+$.
• Light energy is converted to chemical energy, so chemical energy should be changed to light energy.
• PSII precedes PSI in the light - dependent reactions, so they do not need to be switched.

Answer:

$CO_2$ should be changed to $H_2O$, Chemical energy should be changed to light energy.