Question 1

The pyruvate dehydrogenase complex catalyzes the oxidative decarboxylation of pyruvate. Two of the steps catalyzed by this complex do not involve any of the carbons of pyruvate. Briefly describe these reaction steps.

Accepted Answer

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Question 2

Explain in quantitative terms the circumstances under which the following reaction can proceed. L-Malate + NAD⁺$\rightarrow$oxaloacetate + NADH + H⁺ $\Delta$G'° = +29.7 kJ/mol

Accepted Answer

The answer of Explain in quantitative terms the circumstances under...

Question 3

You are in charge of genetically engineering a new bacterium that will derive all of its ATP from sunlight by photosynthesis. Will you put the enzymes of the citric acid cycle in this organism? Briefly explain why or why not.

Accepted Answer

The answer of You are in charge of genetically engineering...

Question 4

Germinating plant seeds can convert stored fatty acids into oxaloacetate and a variety of carbohydrates. Animals cannot synthesize significant quantities of oxaloacetate or glucose from fatty acids. What accounts for this difference?

Accepted Answer

The answer of Germinating plant seeds can convert stored fatty...

Question 5

Match the cofactor with its function in the citric acid cycle. A given function may be used more than once or not at all. Cofactor Function (a) NAD⁺/NADH (1) carries O₂ (b) FAD/FADH₂ (2) carries small carbon-containing molecules (c) CoA (3) carries e^- (d) thiamine (4) carries small nitrogen-containing molecules (e) biotin

Accepted Answer

The answer of Match the cofactor with its function in...

Quiz 16: The Citric Acid Cycle

The pyruvate dehydrogenase complex catalyzes the oxidative decarboxylation of pyruvate. Two of the steps catalyzed by this complex do not involve any of the carbons of pyruvate. Briefly describe these reaction steps.

Explain in quantitative terms the circumstances under which the following reaction can proceed. L-Malate + NAD⁺ $\rightarrow$ oxaloacetate + NADH + H⁺ $\Delta$ G'° = +29.7 kJ/mol

You are in charge of genetically engineering a new bacterium that will derive all of its ATP from sunlight by photosynthesis. Will you put the enzymes of the citric acid cycle in this organism? Briefly explain why or why not.

Germinating plant seeds can convert stored fatty acids into oxaloacetate and a variety of carbohydrates. Animals cannot synthesize significant quantities of oxaloacetate or glucose from fatty acids. What accounts for this difference?

Quiz 16: The Citric Acid Cycle

The pyruvate dehydrogenase complex catalyzes the oxidative decarboxylation of pyruvate. Two of the steps catalyzed by this complex do not involve any of the carbons of pyruvate. Briefly describe these reaction steps.

Explain in quantitative terms the circumstances under which the following reaction can proceed. L-Malate + NAD+ →\rightarrow→ oxaloacetate + NADH + H+ Δ\DeltaΔ G'° = +29.7 kJ/mol

You are in charge of genetically engineering a new bacterium that will derive all of its ATP from sunlight by photosynthesis. Will you put the enzymes of the citric acid cycle in this organism? Briefly explain why or why not.

Germinating plant seeds can convert stored fatty acids into oxaloacetate and a variety of carbohydrates. Animals cannot synthesize significant quantities of oxaloacetate or glucose from fatty acids. What accounts for this difference?

Explain in quantitative terms the circumstances under which the following reaction can proceed. L-Malate + NAD⁺ $\rightarrow$ oxaloacetate + NADH + H⁺ $\Delta$ G'° = +29.7 kJ/mol