Question

1. indicate whether each statement is referring to aerobic (a), anaerobic respiration (an), or both (b).

a. requires oxygen
b. requires glucose
c. creates lactic acid
d. creates 36 atp
e. can be sustained for long periods
f. only sustainable for short periods
g. generates energy
h. leaves you feeling breathless

Explanation:

• a. Requires oxygen: Aerobic respiration (A) requires oxygen. Anaerobic respiration (AN) does not.
• b. Requires glucose: Both aerobic (A) and anaerobic (AN) respiration require glucose.
• c. Creates Lactic Acid: Anaerobic respiration (AN) in animals (like muscle cells during intense exercise) creates lactic acid.
• d. Creates 36 ATP: Aerobic respiration (A) creates 36 ATP (approximate value, actual yield can vary slightly depending on the cell type and conditions).
• e. Can be sustained for long periods: Aerobic respiration (A) can be sustained for long periods as it is more efficient and has a continuous supply of oxygen (assuming normal breathing and activity levels).
• f. Only sustainable for short periods: Anaerobic respiration (AN) (like lactic - acid fermentation) is only sustainable for short periods because lactic acid build - up causes fatigue.
• g. Generates energy: Both aerobic (A) and anaerobic (AN) respiration generate energy (in the form of ATP).
• h. Leaves you feeling breathless: Intense anaerobic respiration (AN) (e.g., during a very strenuous short - term exercise) can lead to oxygen debt, which makes you feel breathless as you need to take in more oxygen to recover. But aerobic respiration (A) during normal, non - overly - strenuous activity does not cause this in the same way. However, if aerobic respiration is occurring at a very high rate (e.g., during long - term intense exercise), it can also contribute to some degree of breathlessness due to the body's increased demand for oxygen, but the primary cause of the “breathless” feeling in the context of the contrast with anaerobic is often associated with anaerobic (due to oxygen debt).

Answer:

a. A
b. B
c. AN
d. A
e. A
f. AN
g. B
h. AN