AP Biology Topic 3.6 Overview of Cellular Respiration

Front

What is the main purpose of cellular respiration?

Back

To convert biochemical energy from nutrients into ATP, and release waste products.

Front

What are the three main stages of aerobic cellular respiration?

Back

Glycolysis, Krebs cycle, and Electron transport chain.

Front

Where does glycolysis occur in the cell?

Back

In the cytoplasm.

Front

What is the role of oxygen in aerobic respiration?

Back

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

Front

What is produced during glycolysis?

Back

2 ATP, 2 NADH, and 2 pyruvate molecules.

Front

What is the Krebs cycle also known as?

Back

Citric acid cycle.

Front

What are the end products of the Krebs cycle?

Back

3 NADH, 1 FADH2, 1 ATP, and 2 CO2 per cycle.

Front

What is the electron transport chain?

Back

A series of protein complexes in the inner mitochondrial membrane that transfer electrons and pump protons to create a proton gradient.

Front

What is the significance of the proton gradient in cellular respiration?

Back

It drives ATP synthesis through chemiosmosis.

Front

What is anaerobic respiration?

Back

A form of respiration that occurs without oxygen, producing less ATP than aerobic respiration.