#Question id: 540
#Biochemistry
During strenuous exercise, the NADH formed in the glyceraldehyde 3-phosphate dehydrogenase reaction in skeletal muscle must be reoxidized to NAD+ if glycolysis is to continue. The most important reaction involved in the reoxidation of NADH is:
#Question id: 541
#Biochemistry
The overall △G for glycolysis is -72 kJ/mol in erythrocytes. Which statement below is true?
A) The value of △G0ʹ is also -72 kJ/mol since the cytosol pH is close to 7.
B) The free energy of glycolysis is found as the sum of the standard free energy changes for
the individual pathway reactions.
C) The negative sign of △G shows that this pathway will proceed toward product (pyruvate) under normal cellular conditions.
#Question id: 543
#Biochemistry
If glucose labeled with 14C at C-1 (the aldehyde carbon) were metabolized in the liver, the first radioactive pyruvate formed would be labeled in:
#Question id: 544
#Biochemistry
One of the enzymes involved in glycolysis, aldolase, requires Zn2+ for catalysis. Under conditions of zinc deficiency, when the enzyme may lack zinc, it would be referred to as the:
#Question id: 545
#Biochemistry
Which one of the following is not among the six internationally accepted classes of enzymes?
#Question id: 546
#Biochemistry
Enzymes are potent catalysts because they: