Anaerobic Respiration - Electron Transport Chain

Front

What is anaerobic respiration?

Back

Anaerobic respiration is a type of cellular respiration that occurs in the absence of oxygen, allowing cells to generate energy by converting glucose into energy-rich molecules like ATP.

Front

What is the electron transport chain (ETC)?

Back

The electron transport chain is a series of protein complexes located in the inner mitochondrial membrane that transfer electrons from electron donors like NADH and FADH2 to electron acceptors, ultimately producing ATP.

Front

How many ATP molecules are produced from one NADH during aerobic respiration?

Back

3 ATP

Front

What is the primary role of NADH in cellular respiration?

Back

To donate electrons to the electron transport chain.

Front

Which molecule is produced as a byproduct of the electron transport chain?

Back

Water.

Front

Which complex is associated with the pumping of hydrogen ions?

Back

Complex IV.

Front

What happens to hydrogen ions during the electron transport chain?

Back

They are pumped into the intermembrane space.

Front

What is the role of oxygen in aerobic respiration?

Back

Oxygen acts as the final electron acceptor in the electron transport chain, allowing for the production of water and enabling the continuation of the chain.

Front

What is oxidative phosphorylation?

Back

Oxidative phosphorylation is the process by which ATP is formed as a result of the transfer of electrons through the electron transport chain and the subsequent pumping of protons across the mitochondrial membrane.

Front

What is the significance of the proton gradient in the electron transport chain?

Back

The proton gradient created by the pumping of hydrogen ions is used by ATP synthase to produce ATP as protons flow back into the mitochondrial matrix.