Question

What is the importance of Krebs’ Cycle?

Answer 1

Explanation:

IMPORTANCE OF KREBS' CYCLE:-

The Krebs cycle is the second of three stages of cellular respiration, in which glucose, fatty acids and certain amino acids, the so-called fuel molecules, are oxidized . The oxidation of these molecules is primarily used to transform the energy contained in these molecules into ATP. ATP provides for example energy for muscle contractions and can therefore be referred to as "energy currency" of the cells.

Before the fuel molecules can be inserted in the Krebs Cycle, they must first all be converted into acetyl-CoA. Looking at the path of a nutrient, such as glucose, the oxidation of the molecule takes place in the glycolysis. The product of the glycolysis is pyruvate. In a further reaction, which is catalyzed by the enzyme complex pyruvate dehydrogenase, acetyl-CoA is formed out of pyruvate, which can be introduced into the citric acid cycle or Krebs Cycle.

Answer 2

Dear Student,

● Krebs cycle -

• Krebs cycle is common pathway for oxidation of carbohydrates, proteins & fatty acids.
• Also known as Citric Acid cycle or Tricarboxylic Acid (TCA) cycle.
• It takes place in mitochondria.

● Importance of Krebs cycle -

• At the end, pyruvate is broken down to CO2.
• It is essential step for production of ATP.
• It is final common oxidative pathway.
• It carries out the oxidation of fatty acids.
• It is major pathway in gluconeogenesis, fatty acid synthesis.
• It helps in amino acid metabolism. i.e. transamination and deamination.

Thanks dear. Hope this helps you...