Please answer all of the following multiple questions, thanks! 1. With a AG of-1

Question

Please answer all of the following multiple questions, thanks! 1. With a AG of-16.7 kJ/mol, the reaction catalyzed by hexokinase is considered to be A) at equilibrium B) substrate and product concentration dependent C) freely reversible D) metabolically irreversible E) none of the above 2. Which of the following enzymes requires ATP as a substrate? A) phosphofructokinase-1 B) phosphoglucose isomerase C) aldolase D) triose phosphate isomerase E) enolase 3. What regulatory enzyme of glycolysis is skipped during fructose metabolism? A) hexokinase B) phosphoglucose isomerase C) phosphofructokinase-2 D) pyruvate kinase E) fructose metabolism does not skip any steps of glycolysis 4. Which of the following is NOT a required enzyme or substrate for the interconversion of pyruvate into PEP? A) ATP B) CO2 C) GTP D) HCO, E) Pyruvate carboxylase

Explanation / Answer

1. (B) Substrate and product concentration dependent

2. (A) Phosphofructo kinase -1

3. (C) Phosphofucto kinase - 2

4. (B) CO2

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