Cellular Respiration

What is the primary purpose of cellular respiration?

• Produce oxygen

• Store glucose

• Generate heat

• Produce ATP

Which organelle is responsible for the process of cellular respiration?

• Endoplasmic reticulum

• Chloroplast

• Mitochondria

• Nucleus

What are the three main stages of cellular respiration?

• Glycolysis, Citric Acid Cycle, Oxidative Phosphorylation

• Photosynthesis, Fermentation, Krebs Cycle

• Calvin Cycle, Electron Transport Chain, Lactic Acid Fermentation

• ATP Synthase, Pyruvate Oxidation, Acetyl CoA Formation

What is the starting molecule for glycolysis?

• glucose

• maltose

• fructose

• sucrose

Where does the Krebs cycle take place in eukaryotic cells?

• mitochondria

• cytoplasm

• nucleus

• endoplasmic reticulum

What is the final electron acceptor in the electron transport chain?

• Glucose

• Oxygen

• Hydrogen peroxide

• Carbon dioxide

How many ATP molecules are produced from one molecule of glucose during cellular respiration?

• 30-32 ATP molecules

• 40-42 ATP molecules

• 25-28 ATP molecules

• 36-38 ATP molecules

What is the net gain of ATP molecules in glycolysis?

• 1 ATP molecule

• 2 ATP molecules

• 4 ATP molecules

• 3 ATP molecules

What is the role of oxygen in cellular respiration?

• Oxygen acts as the final electron acceptor in cellular respiration.

• Oxygen is only needed in the initial stages of cellular respiration.

• Oxygen is responsible for breaking down glucose in cellular respiration.

• Oxygen is used to produce carbon dioxide in cellular respiration.

What is the overall chemical equation for cellular respiration?

• C6H12O6 + 6O2 -> 6CO2 + 6H2O + NADH

• C6H12O6 + 6O2 -> 6CO2 + 6H2O + ATP

• C6H12O6 + 6O2 -> 6CO2 + 6H2O + ADP

• CH4 + O2 -> CO2 + H2O + ATP