Question

Which answer correctly compares the Krebs cycle and the electron transport chain?

A: Both are aerobic and focus on breaking down organic molecules.
B: Both occur in the mitochondria and result in producing more ATP.
C: Both are anaerobic and occur inside the mitochondria.
D: Both occur in the cytoplasm and result in producing more ATP.

Answer 1

B: Both occur in the mitochondria and result in producing more ATP.

Answer 2

The correct answer is option B.

Step-by-step explanation:

Krebs cycle refers to an arrangement of reactions, via which the majority of the living cells produce energy at the time of aerobic respiration. It occurs within the mitochondria, takes up oxygen, generating water and carbon dioxide as the waste components, and transforming the ADP into energy-rich ATP.

An ETC or electron transport chain refers to an arrangement of complexes, which mediate electrons towards electron acceptors from electron donors with the help of redox reactions, and combines this transfer of electrons with the transfer of hydrogen ions or protons through a membrane. This develops an electrochemical proton gradient, which facilitates the production of ATP. The process similar to the Krebs cycle takes place within the mitochondria and generates ample quantity of ATP.