need help with biochemistry 29 -34 please ChFT 29. What reaction is catalyzed by

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need help with biochemistry

29 -34 please

ChFT 29. What reaction is catalyzed by aldolase? A) isomerization of dihydroxyacetone phosphate and glyceraldehyde-3-phosphate B) ligation of dihydroxyacetone phosphate and glyceraldehyde-3-phosphate Cl reversible cleavage of F-1,6-BP to dihydroxyacetone phosphate and glyceraldehyde-3- phosphate D) cleavage of dihydroxyacetone phosphate and glyceraldehyde-3-phosphate 30. What is the function of glyceraldehyde 3-phosphate dehydrogenase? A) B) C) D) E) oxidation by NAD+ and formation of acyl-phosphate oxidation of the alcohol to an aldehyde dehydration and dephosphorylation of Blyceraldehyde-3-phosphate hydrolysis of glyceraldehyde-3-phosphate None of the above.

Explanation / Answer

29. C).

Explanation:- Aldolase B also known as fructose-bisphosphate aldolase B orliver-type aldolase is one of three isoenzymes (A, B, and C) of the class I fructose 1,6-bisphosphate aldolase enzyme (EC 4.1.2.13), and plays a key role in both glycolysis and gluconeogenesis. The generic fructose 1,6-bisphosphate aldolase enzyme catalyzes the reversible cleavage of fructose 1,6-bisphosphate (FBP) intoglyceraldehyde 3-phosphate and dihydroxyacetone phosphate(DHAP) as well as the reversible cleavage of fructose 1-phosphate(F1P) into glyceraldehyde and dihydroxyacetone phosphate.

30. A.

Explanation:-Glyceraldehyde-3-phosphate dehydrogenase (GAPDH) plays an important role in glycolysis and gluconeogenesis by reversibly catalysing the oxidation and phosphorylation of G3P to the energy-rich intermediate 1,3BPG.  NAD+ is a co-substrate for this reaction.

31. D. All of the above.

32. D. a & c

Explanation:-The tricarboxylic acid cycle (TCA cycle) is a series of enzyme-catalyzed chemical reactions that form a key part of aerobic respiration in cells. This cycle is also called the Krebs cycle and the citric acid cycle.

33. D.

34. B

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