Answer: The correct answer for the fill in the blank is Aerobic respiration.
Aerobic respiration is a process of respiration in which cell utilizes glucose and oxygen molecule in order to generate large amount of cellular energy that can be further used for cellular work. It is a highly energy efficient process as it produces upto 38 molecules of ATP.
On the other hand, anaerobic respiration ( common in micro organisms) generates cellular energy ( ATP) using only glucose that is in absence of oxygen. It generates only 2 ATP molecules and thus very less efficient process.
The process of aerobic respiration yields the highest number of ATP.
Aerobic respiration takes place in the presence of oxygen. Carbohydrates are broken down into molecules of pyruvate which then move into the citric acid cycle.
The process is completed by an electron transport chain with about 32 ATP molecules generated.
Without oxygen (anaerobic respiration), only glycolysis takes place as the citric acid cycle and the electron transport chain require oxygen. Thus, the number of ATP generated is limited.
More on respiration can be found here: https://brainly.com/question/1439976
