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प्रश्न
ATP produced during glycolysis is a result of substrate level phosphorylation. Explain.
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उत्तर
When the formation of ATP happens by direct transfer of a phosphoryl (PO3) group to ADP from a phosphorylated reactive intermediate, this is called substrate-level phosphorylation. During glycolysis, ATP is formed at two stages because of the direct transfer of the phosphoryl group to ADP.
- When BPGA (bisphosphoglyceric acid) is converted into PGA (phosphoglyceric acid).
- When PEP (phosphoenolpyruvate) is converted into pyruvic acid.
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संबंधित प्रश्न
Differentiate between Glycolysis and Krebs’ cycle.
Give the schematic representation of glycolysis?
The adenosine triphosphate (ATP) gain during glycolysis, connecting
link and Krebs' cycle respectively are ___
(a) 8, 6, 24
(b) 8, 24, 6
(c) 24, 8, 6
(d) 6, 8 24
Name the reactions when a-ketoglutarate is converted to succinyl Co-A in Krebs' cycle
Following reactions occur during glycolysis. Arrange them in the order of their occurrence in the glycolytic pathway.
- Dihydroxy acetone phosphate → Glyceraldehyde-3-phosphate
- Fructose-6-phosphate → Fructose-1, 6-bisphosphate
- Phosphoenolpyruvate → Pyruvic acid
- 2-Phosphoglycerat → Phosphoenolpyruvate
- Glucose-6-phosphate → Fructose-6- phosphate
- 1,3-bisphosphoglyceric acid → 3- phosphoglyceric acid
Which of the following occurs during preparatory phase of glycolysis?
Identify 'P' in the following reaction.
\[\ce{C6H12O6 ->[Glycolysis] 'P' + 2NADH + H+ -> 2CH3CHOHCOOH + 2NAD+}\]
How many oxygen molecules are utilized in glycolysis?
Which of the following is the first step of glycolysis?
How many ATP molecules are generated when one molecule of reduced coenzyme NADH2 is re-oxidized during the respiratory chain?
During glycolysis, the first molecule to be dehydrogenated is ______.
Which one of the following is the first step of glycolysis?
Energy is released during the oxidation of compounds in respiration. How is this energy stored and released as and when it is needed?
Which of the following will release more energy on oxidation? Arrange them in ascending order.
- 1 gm of fat
- 1 gm of protein
- 1 gm of glucose
- 0.5 g of protein + 0.5g glucose
The figure given below shows the steps in glycolysis. Fill in the missing steps A, B, C, D and also indicate whether ATP is being used up or released at step E?
In the following flow chart, replace the symbols a,b,c and d with appropriate terms. Briefly explain the process and give any two application of it.
Formation of acetyl CoA from pyruvic acid takes place by ______.
The first three steps of glycolysis are called as ______.
