Question

ank 3: diuron
experiment 3:
what is the effect of diuron on atp, nadph, and
sugar?
atp
increase decrease no change
nadph
increase decrease no change
sugar
increase decrease no change
normal sea water gbr sea water high sea temperature paraquat diuron
atp 5.2 mm 0.1 mm ↓ 7.2 mm ↑ 7.2 mm ↑
nadph 5.3 mm 0.1 mm ↓ 7.3 mm ↑ 0.1 mm ↓
sugar 6.0 mm 0.2 mm ↓ 0.2 mm ↓ 0.2 mm ↓

Explanation:

Diuron inhibits photosystem II in the light-dependent reactions of photosynthesis, which blocks the electron transport chain. This stops the production of ATP and NADPH, which are required for the Calvin cycle to produce sugar. Without ATP and NADPH, sugar synthesis cannot occur, so ATP, NADPH, and sugar levels all decrease compared to normal conditions.

Answer:

ATP: Decrease
NADPH: Decrease
Sugar: Decrease