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Questions and Answers
What are the main products of the reactions catalyzed by carboxylase enzymes?
What are the main products of the reactions catalyzed by carboxylase enzymes?
- Oxaloacetate and organic electron donors (correct)
- Organic acids and alcohols
- Pyruvate and phosphoenolpyruvate
- CO2 and reducing power
What role does the citric acid cycle play in biosynthesis?
What role does the citric acid cycle play in biosynthesis?
- Oxidizes pyruvate to CO2
- Draws off key organic compounds for biosynthesis (correct)
- Produces new cell material during growth
- Regenerates oxaloacetate for energy needs
Why does an organism need the enzyme pyruvate carboxylase to enable growth if pyruvate is its sole source of energy and reducing power?
Why does an organism need the enzyme pyruvate carboxylase to enable growth if pyruvate is its sole source of energy and reducing power?
- To convert pyruvate into oxaloacetate for regeneration purposes (correct)
- To produce new cell material during growth
- To excrete reduced molecules to the environment
- To achieve redox balance by reducing pyruvate
How do microbes that ferment glucose achieve energy conservation?
How do microbes that ferment glucose achieve energy conservation?
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Why is it not possible for an organism to grow by using only glycolysis?
Why is it not possible for an organism to grow by using only glycolysis?
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