12 Questions
What is the total number of ATP molecules generated through oxidative phosphorylation per NADH molecule?
2 ATP
In which step of the Krebs cycle is FADH2 produced?
Step 4
What is the role of NADH and FADH2 in cellular respiration?
Act as electron donors in the electron transport chain (ETC)
Where does the conversion of pyruvate into acetyl-CoA occur in cellular respiration?
Krebs cycle
What is the final product formed from the oxidation of acetyl-CoA in the Krebs cycle?
Carbon dioxide (CO2)
How many ATP molecules are generated from a single molecule of glucose through cellular respiration?
~38 ATP
Which of the following is the correct order of steps in glycolysis?
Hexokinase, Phosphoglucose isomerase, Aldolase, Triose phosphate isomerase, Phosphofructokinase, Glyceraldehyde 3-phosphate dehydrogenase, Phosphoglycerate kinase, Phosphoglycerate mutase, Enolase, Pyruvate kinase
What is the primary function of the glyceraldehyde 3-phosphate dehydrogenase enzyme in glycolysis?
To oxidize the substrate and produce NADH
Which of the following enzymes is responsible for the substrate-level phosphorylation step in glycolysis?
Phosphoglycerate kinase
What is the end product of glycolysis?
Pyruvate
Which enzyme is responsible for the cleavage of a six-carbon sugar molecule into two three-carbon molecules during glycolysis?
Aldolase
What is the primary function of the enolase enzyme in glycolysis?
To rearrange the atoms of the substrate molecule
Test your knowledge on the sixth step of glycolysis which involves kinase enzymes and the conversion of acetyl-CoA and oxaloacetate. Understand the process of molecule rearrangement and energy production through NADH formation, phosphorylation, and ATP creation.
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