Multiple Choice the final step of the Krebs cycle the first redox reaction of the electron transport system an example of oxidative phosphorylation an example of substrate-level phosphorylation

Human Anatomy & Physiology (11th Edition)
11th Edition
ISBN:9780134580999
Author:Elaine N. Marieb, Katja N. Hoehn
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Chapter1: The Human Body: An Orientation
Section: Chapter Questions
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**Question**: The step involving ATP, hexokinase, and the phosphorylation of glucose to glucose-6-phosphate is _______.

**Multiple Choice Options**:

- ○ The final step of the Krebs cycle
- ○ The first redox reaction of the electron transport system
- ○ An example of oxidative phosphorylation
- ● An example of substrate-level phosphorylation
- ○ An example of photophosphorylation

**Answer Explanation**:

The correct answer is "an example of substrate-level phosphorylation". This question addresses the initial step in glycolysis where glucose is phosphorylated to glucose-6-phosphate using ATP and the enzyme hexokinase, classifying it as substrate-level phosphorylation.
Transcribed Image Text:**Question**: The step involving ATP, hexokinase, and the phosphorylation of glucose to glucose-6-phosphate is _______. **Multiple Choice Options**: - ○ The final step of the Krebs cycle - ○ The first redox reaction of the electron transport system - ○ An example of oxidative phosphorylation - ● An example of substrate-level phosphorylation - ○ An example of photophosphorylation **Answer Explanation**: The correct answer is "an example of substrate-level phosphorylation". This question addresses the initial step in glycolysis where glucose is phosphorylated to glucose-6-phosphate using ATP and the enzyme hexokinase, classifying it as substrate-level phosphorylation.
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