Exploring Respiration and the Electron Transport Chain

What molecule provides electrons to the electron transport chain?

• NADH

• ATP

• Glucose

• Water

Which protein is the first to receive electrons from NADH?

• Suscinate Dehydrogenase

• NADH Dehydrogenase

• Cytochrome c

• ATP Synthase

What is the primary function of the electron transport chain?

• Break down carbon dioxide

• Pump hydrogen ions

• Produce oxygen

• Synthesize glucose

What does ATP synthase do with the hydrogen ions?

• Transports them back to the matrix

• Releases them as waste

• Uses them to form ATP

• Converts them to water

Which component is essential for the ATP synthase function?

• Carbon dioxide

• Oxygen

• Glucose

• Hydrogen ions

What role does the concentration gradient play in ATP synthesis?

• It synthesizes proteins

• It drives hydrogen ions through ATP synthase

• It prevents ATP formation

• It breaks down glucose

What happens to the electrons at the end of the electron transport chain?

• They form glucose

• They exit the mitochondrion

• They are recycled

• They are picked up by oxygen

What is the final product formed when oxygen picks up electrons and hydrogens?

• Carbon dioxide

• Glucose

• Water

• ATP

How many ATP can be produced from one glucose molecule through this process?

• Up to 18 ATP

• Exactly 36 ATP

• Up to 36 ATP

• More than 50 ATP

What would happen if breathing stops?

• ATP production increases

• Electrons back up in the chain

• Hydrogen ions form glucose

• Oxygen levels in the mitochondrion decrease