Metabolic Pathways – Respiration

Front

What are enzymes?

Back

Enzymes are proteins that act as catalysts to accelerate chemical reactions in biological systems.

Front

Where does glycolysis occur?

Back

Glycolysis occurs in the cytoplasm of the cell.

Front

What is the function of mitochondria?

Back

Mitochondria are the organelles responsible for producing energy in the form of ATP through cellular respiration.

Front

What is oxidative phosphorylation?

Back

Oxidative phosphorylation is the process by which living cells release usable forms of energy, primarily through the electron transport chain and chemiosmosis.

Front

Why is oxygen essential for aerobic respiration?

Back

Oxygen is the final electron acceptor in aerobic respiration, which allows for the production of water and the release of energy.

Front

What is the Krebs cycle?

Back

The Krebs cycle, also known as the citric acid cycle, is a series of chemical reactions used by all aerobic organisms to generate energy through the oxidation of acetyl-CoA.

Front

What is the role of NADH in cellular respiration?

Back

NADH is an electron carrier that transports electrons to the electron transport chain, where it contributes to ATP production.

Front

What is fermentation?

Back

Fermentation is an anaerobic process that allows cells to produce energy without oxygen, resulting in byproducts like lactic acid or ethanol.

Front

What is the difference between aerobic and anaerobic respiration?

Back

Aerobic respiration requires oxygen and produces more energy (ATP) compared to anaerobic respiration, which occurs without oxygen.

Front

What is the electron transport chain?

Back

The electron transport chain is a series of protein complexes located in the inner mitochondrial membrane that transfer electrons and pump protons to create a proton gradient for ATP synthesis.