5 Questions
Which enzyme catalyzes the conversion of glucose to glucose-6-phosphate in the first stage of glycolysis?
Hexokinase
Which molecule is the product of the third reaction in glycolysis, which is also the rate-limiting step?
Fructose-1,6-bisphosphate
Which reaction in glycolysis involves the formation of the first high-energy intermediate?
Glyceraldehyde-3-phosphate to 1,3-bisphosphoglycerate
Which molecule is the final product of glycolysis under aerobic conditions?
Pyruvate
Which process occurs in red blood cells due to the absence of mitochondria?
Anaerobic glycolysis
Study Notes
Glycolysis Reactions
- Hexokinase is the enzyme that catalyzes the conversion of glucose to glucose-6-phosphate in the first stage of glycolysis.
Rate-Limiting Step
- The product of the third reaction in glycolysis, which is also the rate-limiting step, is fructose-1,6-bisphosphate.
High-Energy Intermediate
- The reaction involving the formation of the first high-energy intermediate in glycolysis is the conversion of 1,3-bisphosphoglycerate to 3-phosphoglycerate.
Final Product of Glycolysis
- The final product of glycolysis under aerobic conditions is pyruvate.
Energy Metabolism in Red Blood Cells
- Due to the absence of mitochondria, red blood cells rely solely on glycolysis for energy production.
Test your knowledge of glycolysis with this quiz from the Faculty of Dentistry Medical Biochemistry. Explore the major pathway for glucose oxidation that occurs in the cytosol of all cells and its ability to function aerobically or anaerobically. Learn about how glycolysis allows tissues to survive in the presence or absence of oxygen.
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