Textbook Question
Examine the biosynthetic pathway for the production of the amino acids tryptophan, tyrosine, and phenylalanine in the figure. Where do the initial reactants (erythrose 4-phosphate and PEP) originate?
12. Microbial Metabolism
Pentose-Phosphate Pathway
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Which of the metabolic pathways produce ATP?
A
Glycolysis.
B
Pentose Phosphate Pathway.
C
Entner-Doudoroff Pathway.
D
A and B.
E
B and C.
F
A and C.
Verified step by step guidance1
Understand the role of ATP in cellular metabolism: ATP is the primary energy currency of the cell, and various metabolic pathways are involved in its production.
Review the Glycolysis pathway: Glycolysis is a series of reactions that convert glucose into pyruvate, producing ATP and NADH in the process. It is a well-known pathway for ATP production.
Examine the Pentose Phosphate Pathway: This pathway primarily generates NADPH and ribose-5-phosphate, rather than ATP. It is involved in biosynthetic reactions and antioxidant defense.
Explore the Entner-Doudoroff Pathway: This pathway is an alternative to glycolysis found in some bacteria. It also results in the production of ATP, along with NADPH and pyruvate.
Conclude which pathways produce ATP: Based on the analysis, Glycolysis and the Entner-Doudoroff Pathway are both involved in ATP production, confirming the answer as A and C.
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