Aerobic Respiration and Mitochondria Structure

What is the purpose of aerobic respiration?

• To break down glucose into pyruvate

• To fully oxidize food and produce energy

• To convert pyruvate into carbon dioxide

• To create a proton gradient in the mitochondria

What is the structure of mitochondria?

• Single membrane organelle

• Triple membrane organelle

• Double membrane organelle

• No membrane structure

What is the purpose of the inner membrane in mitochondria?

• To increase the surface area for ATP synthesis

• To store energy in the form of reduced electron carriers

• To regulate the flow of molecules in and out of the mitochondria

• To provide structural support to the organelle

What is the main purpose of the citric acid cycle?

• To produce ATP through substrate-level phosphorylation

• To fully oxidize food and generate reduced electron carriers

• To convert pyruvate into acetyl CoA

• To create a proton gradient for chemiosmosis

What happens to carbon dioxide produced during the citric acid cycle?

• It is converted into glucose for energy storage

• It is exhaled from the body

• It is converted into ATP through oxidative phosphorylation

• It is stored in the mitochondria for later use

What is the purpose of acetyl CoA in the citric acid cycle?

• To produce ATP through substrate-level phosphorylation

• To convert pyruvate into carbon dioxide

• To attach to oxaloacetate and initiate the cycle

• To generate reduced electron carriers for the electron transport chain

What is the overall outcome of the citric acid cycle?

• Production of carbon dioxide and ATP

• Conversion of glucose into pyruvate

• Generation of reduced electron carriers

• Formation of acetyl CoA

What is the purpose of the electron transport chain?

• To convert pyruvate into acetyl CoA

• To produce ATP through substrate-level phosphorylation

• To generate a proton gradient for chemiosmosis

• To break down glucose into pyruvate

What happens to the reduced electron carriers in the electron transport chain?

• They are converted into carbon dioxide

• They are stored in the mitochondria for later use

• They are oxidized to produce ATP

• They are exhaled from the body

How is energy produced in oxidative phosphorylation?

• Through the oxidation of pyruvate

• Through the conversion of carbon dioxide

• Through the movement of protons across the inner membrane

• Through the attachment of acetyl CoA to oxaloacetate