What are the steps as energy is extracted from glucose during cellular respiration?

Answer 1

Aerobic cellular respiration can be broken down into three main steps: glycolysis, the citric acid cycle (Krebs cycle), and the electron transport chain coupled with oxidative phosphorylation.

1)Glycolysis occurs in the presence or absence of oxygen and is when glucose is broken down. This occurs in the cytoplasm. The result of glycolysis is two molecules of ATP, pyruvate, and NADH.

2)Before the second main step begins, the pyruvate undergoes oxidization in the mitochondria and is converted into Acetyl-CoA. NADH gains electrons and carbon is lost, which forms CO2.

3)The second step is the citric acid cycle or TCA cycle or Krebs cycle. This complex cycle results in two carbon dioxide molecules, one GTP/ATP, and reduced forms of NADH and FADH2.

4)The last main portion of cellular respiration is oxidative phosphorylation. Electrons from NADH and FADH2 are transferred through the membrane of the mitochondria. When hydrogen ions come back across the membrane, ATP is synthesized though what is called the ATP synthase complex.

Answer 2

glycolysis → acetyl CoA → citric acid cycle → electron transport chain

Answer 3

For aerobic respiration the steps are: glycolysis, formation of acetyl coenzyme A, the Krebs cycle, and the electron transport chain.

Answer 4

Energy is extracted in two steps.Glycolisis and kreb cycle.