POSSIBLE POINTS: 1

Based on the diagram, what are the products of the electron transport chain? SELECT ALL THAT APPLY.
Responses

NADH
NADH

O2
O 2

ATP
ATP

CO2
CO 2

Pyruvate
Pyruvate

H2O

1 answer

The products of the electron transport chain (ETC) primarily include:

  • ATP (as a result of oxidative phosphorylation)
  • H2O (water, which is formed when electrons reduce oxygen)

The other options listed (NADH, O2, CO2, Pyruvate) are not direct products of the ETC:

  • NADH is produced in earlier stages of cellular respiration (like glycolysis and the citric acid cycle).
  • O2 is the final electron acceptor but is not a product.
  • CO2 is produced during the citric acid cycle (not the ETC).
  • Pyruvate is produced in glycolysis.

So, the correct answers are:

  • ATP
  • H2O