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 electron transport chain glycolysis citric acid cycle (krebs cycle) fermentation

Explanation:

Glycolysis is the first - step of cellular respiration and occurs in both aerobic and anaerobic conditions. The electron transport chain and citric acid cycle (Krebs cycle) require oxygen and occur only in aerobic conditions. Fermentation occurs in the absence of oxygen, i.e., in anaerobic conditions.

Answer:

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