18 Questions
Which location does the Krebs cycle occur in?
Mitochondrial membrane
What is the main source of ATP production in cells?
Citric Acid Cycle (Krebs Cycle)
In the Krebs cycle, how many molecules of CO2 are released per cycle?
2
Which molecule is produced in the Krebs cycle when succinyl CoA is converted to succinate?
ATP
When does decarboxylation occur in the citric acid cycle?
Conversion of alpha-ketoglutarate to succinyl CoA
Which of the following is NOT a reactant in the Krebs cycle?
Glucose
What is the final step in cellular respiration?
Oxidative phosphorylation
Which complex in the Electron Transport Chain is responsible for oxidizing Cytochrome c?
Complex 4- Cytochrome c oxidase
Which molecules transfer their electrons near the beginning of the electron transport chain?
NADH and FADH2
Where does oxidative phosphorylation occur?
Mitochondria
During cellular respiration, what happens to NADH and FADH2 after transferring electrons?
They are oxidized to NAD+ and FAD
Which process makes use of electrons from electron carriers to develop a chemical gradient?
Electron Transport Chain
What is the primary function of the eight enzymes involved in the citric acid cycle?
Convert acetyl-CoA into two molecules each of carbon dioxide and water
Which enzyme is responsible for the conversion of isocitrate to α-ketoglutarate in the citric acid cycle?
Isocitrate dehydrogenase
Which step in oxidative phosphorylation involves the splitting of oxygen to form water?
Splitting of Oxygen to form Water
What is the main process by which energy is harnessed in oxidative phosphorylation?
Electron Transport Chain and Chemiosmosis
Which of the following is NOT a step in the citric acid cycle?
ATP Synthesis
In oxidative phosphorylation, what is the function of chemiosmosis?
Pump protons through special channels to create ATP
Test your knowledge on the Krebs Cycle with this quiz covering the reactants and products involved in each cycle. Learn about where the Krebs cycle occurs and the key molecules like Acetyl CoA and oxaloacetate that play a role in this metabolic pathway.
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