Front

What are the main reactants of cellular respiration?

Back

Glucose and oxygen.

Front

Where does the electron transport chain occur in cellular respiration?

Back

In the inner membrane of the mitochondrion.

Front

What molecules carry energy from glycolysis and the Krebs cycle to the electron transport chain?

Back

NADH and FADH2.

Front

Under what conditions do cells produce ATP most efficiently?

Back

In the presence of oxygen.

Front

Why is ATP referred to as a cell's 'energy currency'?

Back

Because most of the energy that drives metabolism is supplied by ATP.

Front

What is the primary purpose of cellular respiration?

Back

To convert biochemical energy from nutrients into ATP.

Front

What are the three main stages of cellular respiration?

Back

Glycolysis, the Krebs cycle, and the electron transport chain.

Front

What is glycolysis and where does it occur?

Back

Glycolysis is the first step of cellular respiration that breaks down glucose into pyruvate, occurring in the cytoplasm.

Front

What is the role of oxygen in cellular respiration?

Back

Oxygen acts as the final electron acceptor in the electron transport chain.

Front

What is the Krebs cycle also known as?

Back

The citric acid cycle.