Cellular Respiration Quiz

What is the primary purpose of cellular respiration?

• To synthesize proteins

• To generate ATP

• To produce glucose

• To create oxygen

Which molecule is the input for the citric acid cycle?

• Acetyl-CoA

• Glucose

• Pyruvate

• NADH

How many ATP molecules are produced from one turn of the citric acid cycle?

• 1 ATP

• 4 ATP

• 2 ATP

• 3 ATP

Where does the electron transport chain occur in prokaryotic cells?

• In the cytoplasm

• In the mitochondria

• In the plasma membrane

• In the nucleus

What is the final electron acceptor in aerobic respiration?

• Carbon dioxide

• Oxygen

• Sulfate

• Nitrate

What process uses the proton gradient to produce ATP?

• Krebs cycle

• Chemiosmosis

• Glycolysis

• Fermentation

How many ATP molecules can be generated during oxidative phosphorylation in a prokaryotic cell?

• 34 ATP

• 32 ATP

• 30 ATP

• 28 ATP

Why is less ATP generated in eukaryotic cells compared to prokaryotic cells?

• Because of a smaller cell size

• Due to less efficient enzymes

• Because of energy required to transport substances into mitochondria

• Due to a lack of oxygen

What is the main difference between aerobic and anaerobic respiration?

• Aerobic produces less ATP than anaerobic

• Aerobic uses glucose, anaerobic uses proteins

• Aerobic occurs in the cytoplasm, anaerobic in mitochondria

• Aerobic uses oxygen, anaerobic does not

What is the total ATP yield from aerobic respiration in a prokaryotic cell?

• 42 ATP

• 38 ATP

• 40 ATP

• 36 ATP