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Questions and Answers
Which characteristic is true of all metabolic pathways?
Which characteristic is true of all metabolic pathways?
- They are energy-consuming.
- They occur in the cytosol.
- They are regulated. (correct)
- They are reversible.
What is the primary function of a catabolic pathway?
What is the primary function of a catabolic pathway?
- To store energy in the form of glycogen.
- To break down proteins into amino acids.
- To generate chemical energy in the form of ATP. (correct)
- To synthesize ATP.
Which of the following is NOT a characteristic of metabolic pathways?
Which of the following is NOT a characteristic of metabolic pathways?
- They have a first committed step.
- They occur in specific subcellular compartments.
- They are reversible. (correct)
- They are regulated.
What is the end product of catabolic pathways?
What is the end product of catabolic pathways?
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Which of the following is an example of a catabolic pathway?
Which of the following is an example of a catabolic pathway?
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Study Notes
Metabolic Pathways
- Metabolic pathways have distinct characteristics, including being regulated and often compartmentalized in eukaryotic cells.
Characteristics of Catabolic Pathways
- Catabolic pathways are exergonic systems, generating chemical energy in the form of ATP, GTP, NADH, NADPH, and FADH2 from energy-containing sources.
- Sources of energy include carbohydrates, fats, and proteins.
- End products of catabolic pathways often include carbon dioxide, water, and ammonia.
Examples of Catabolic Pathways
- Glycolysis
- Citric acid cycle (Krebs cycle / cellular respiration)
- Electron transport chain
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