Aerobic and Anaerobic Respiration

Q. What role does O₂ play in aerobic respiration?

1. it combines with acetyl-CoA at the start of the Krebs cycle
2. it is given off as a by-product during the oxidation of pyruvate
3. it combines with H₂O to help drive the formation of ATP
4. it is the final electron acceptor at the end of the electron transport chain

Q. What role does O₂ play in aerobic respiration?

1. it combines with acetyl-CoA at the start of the Krebs cycle
2. it is given off as a by-product during the oxidation of pyruvate
3. it combines with H₂O to help drive the formation of ATP
4. it is the final electron acceptor at the end of the electron transport chain

Q. What are the products of aerobic respiration?

1. $C{O}_2,H_{2}O,\text{energy}$
2. $C{O}_2,\text{ethanol},\text{energy}$
3. $\text{Lactic acid},\text{energy}$
4. None of these

Q.

Give reason for the following statement.
A matured mammalian erythrocyte lacks nucleus and mitochondria.

Q. Choose the best option with respect to facultative anaerobes.

1. Can perform aerobic respiration only
2. Can perform anaerobic respiration only
3. Can perform both aerobic and anaerobic respiration
4. None of these