What is the Krebs cyle?

Answer 1

noun

(1) A cycle of reactions catalyzed by enzymes in which pyruvate derived from nutrients and converted to Acetyl Coenzyme A is completely oxidized and broken down into carbon dioxide and water to produce high-energy phosphate compounds, which are the source of cellular energy.

(2) One of the major metabolic pathways of cellular respiration, and involves a cyclic series of enzymatic reactions by which pyruvate converted into Acetyl Coenzyme A is completely oxidized to CO2 and hydrogen is removed from the carbon molecules, transferring the hydrogen atoms and electrons to electron-carrier molecules (e.g. NADH and FADH2) as well as the metabolic energy to high energy bonds (e.g. ATP).

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Answer 2

It is the second step of cellular respiration which occurs in the mitochondria. During this sequence of reactions, the remaining carbon molecules from glucose are oxidized to form carbon dioxide, generating ATP, NADH, and FADH2.