Question

Alternate name of Krebs' cycle is

• A. $TCA$ cycle
• B. citric acid cycle
• C. both (a) and (b)
• D. none of these

Answer 1

The Correct Option is C

Krebs' cycle was discovered by Sir Hans Krebs in $1937$ (Nobel Prize in $1953$) and thus is named so. Krebs' cycle is also called as citric acid cycle or tricarboxylic acid cycle ($TCA$ cycle) after the name of its first product. Citric acid is a tricarboxylic $6$-carbon compound.

Answer 2

Krebs' cycle is an important metabolic mechanism that links glucose, lipid, and protein metabolism. It is a sequence of chemical events that create energy in the form of ATP by oxidizing acetyl -CoA, which is derived from carbs, lipids, and proteins.
Redox, dehydration, hydration, and decarboxylation reactions occur in an eight-step process. It combines two and four-carbon molecules to form a six-carbon molecule, from which carbon dioxide, ATP, NADH, and FADH₂ are produced.
Because citrate is consumed and regenerated in a succession of events to complete the cycle, this route is also known as the citric acid or tri-carboxylic acid pathway. The NADH produced by this cycle is oxidatively phosphorylated.


 

Answer 3

Krebs' cycle was named after Sir Hans Krebs, who discovered it in 1937 (winning the Nobel Prize in 1953). After the name of the initial product, Krebs' cycle is sometimes known as a citric acid cycle or tricarboxylic acid cycle (TCA cycle). Citric acid is a 6-carbon tricarboxylic molecule.