A) priming reaction only
B) redox reaction only
C) priming and redox reaction only
D) substrate level phosphorylation reaction.
Correct Answer: D
Solution :
: During the glycolytic pathway (dehydrogenation and phosphorylation), in the presence of enzyme glyceraldehyde phosphate dehydrogenase, glyceraldehyde 3-phosphate loses hydrogen to NAD to from\[NAD{{H}_{2}}\]and accepts inorganic phosphate to form\[1:3\] diphosphoglycerate. Glyceraldehyde 3 - phosphate\[+{{H}_{3}}P{{O}_{4}}+NA{{D}^{+}}\] \[1:3\]phosphoglycerate \[+NADH+{{H}^{+}}\] One of the two phosphates of diphos-phoglycerate is linked by high energy bond. It can synthesis ATP and form 3-phosphoglycerate by using the enzyme phosphoglycerate kinase. The direct synthesis of ATP from metabolites is called substrate level phosphorylation. \[1:3\]diphosphoglycerat\[+ADP\] 3 - phosphoglycerate + ATP.
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