Cellular Respiration in Detail

Front

What is Cellular Respiration?

Back

Cellular respiration is the process by which cells convert glucose and oxygen into energy (ATP), carbon dioxide, and water.

Front

What is the overall equation for cellular respiration?

Back

C6H12O6 + 6O2 -> 6CO2 + 6H2O + ATP

Front

What are the three main stages of cellular respiration?

Back

1. Glycolysis 2. Krebs Cycle (Citric Acid Cycle) 3. Electron Transport Chain

Front

What is Glycolysis?

Back

Glycolysis is the first step of cellular respiration that breaks down glucose into two molecules of pyruvate, producing a small amount of ATP and NADH.

Front

Where does Glycolysis occur?

Back

Glycolysis occurs in the cytoplasm of the cell.

Front

What is the Krebs Cycle?

Back

The Krebs Cycle is a series of chemical reactions used by all aerobic organisms to generate energy through the oxidation of acetyl-CoA.

Front

Where does the Krebs Cycle take place?

Back

The Krebs Cycle takes place in the mitochondria of the cell.

Front

What is the Electron Transport Chain?

Back

The Electron Transport Chain is the final stage of cellular respiration where electrons are transferred through a series of proteins, pumping H+ ions and producing ATP.

Front

What role do NADH and FADH2 play in cellular respiration?

Back

NADH and FADH2 are high-energy electron carriers that transport electrons to the Electron Transport Chain.

Front

What is Chemiosmosis?

Back

Chemiosmosis is the process by which ATP is produced in the mitochondria as H+ ions flow back into the mitochondrial matrix through ATP synthase.