Question

cellular respiration is carried out in the presence of oxygen (aerobic conditions) or the absence of oxygen (anaerobic conditions). determine whether each event occurs under aerobic conditions, anaerobic conditions, or both aerobic and anaerobic conditions.
aerobic conditions
anaerobic conditions
both
answer bank
fermentation
glycolysis
electron transport chain
citric acid cycle (krebs cycle)

Explanation:

Fermentation occurs without oxygen (anaerobic). Glycolysis is the first - step of cellular respiration and can occur in both aerobic and anaerobic conditions. The electron transport chain and citric acid cycle (Krebs cycle) require oxygen (aerobic).

Answer:

Aerobic conditions: electron transport chain, citric acid cycle (Krebs cycle)
Anaerobic conditions: fermentation
Both: glycolysis