Question

question 4
1 pts
what does label \3\ represent?
glucose
atp
nadph
oxygen
question 5
1 pts
in which structure of a chloroplast do the light reactions of photosynthesis occur?
outer membrane
stroma
inner membrane
thylakoid

Explanation:

• Question 4: In the light - dependent reactions of photosynthesis, NADPH is produced. The diagram likely represents the electron transport chain in the thylakoid membrane. NADPH is a product of the light reactions, which is consistent with what label “3” might represent.
• Question 5: The light reactions of photosynthesis occur in the thylakoid membrane. The thylakoid contains chlorophyll and other pigments and protein complexes (such as photosystem I and II) necessary for capturing light energy, splitting water, and generating ATP and NADPH. The outer membrane, inner membrane, and stroma are not the sites of the light reactions. The stroma is the site of the Calvin cycle (light - independent reactions), and the outer and inner membranes are mainly for protection and regulation of substances entering and leaving the chloroplast.

Answer:

• Question 4: NADPH
• Question 5: Thylakoid