Question

Which of the following sequences accurately represents the flow of electrons during photosynthesis?

a) H2O → NADPH → Calvin cycle
b) NADPH → O2 → CO2
c) NADPH → chlorophyll → Calvin cycle
d) H2O → ATP → Calvin cycle
e) NADPH → electron transport chain → O2"

Answer 1

The correct sequence of electron flow during photosynthesis is H2O → ATP → Calvin cycle.

Step-by-step explanation:

The correct sequence that accurately represents the flow of electrons during photosynthesis is:

H2O → ATP → Calvin cycle

During photosynthesis, water molecules are split in the light-dependent reactions, which generate ATP. The ATP then powers the Calvin cycle, where carbon dioxide is converted into glucose. Therefore, Option (d) H2O → ATP → Calvin cycle is the correct sequence of electron flow during photosynthesis.