30 Questions
Which stage of aerobic respiration converts pyruvate into acetyl CoA?
Link reaction
True or false:The Krebs cycle occurs in the cytoplasm.
False
Which stage of aerobic respiration converts pyruvate into acetyl CoA?
Link reaction
What is the main function of NADH and FADH in aerobic respiration?
To carry electrons to the electron transport chain
True or false: Anaerobic respiration does not require the presence of oxygen.
False
What is the purpose of NAD and FAD in aerobic respiration?
To transfer hydrogen atoms
True or false: The link reaction produces ATP.
False
Which stage of aerobic respiration yields 2 ATP and NADH?
Glycolysis
Which stage of aerobic respiration occurs in the cytoplasm?
Glycolysis
True or false: The final stage of aerobic respiration is electron transport/chemiosmosis.
True
What is the final stage of aerobic respiration?
Electron transport/chemiosmosis
What is the main product of the Krebs cycle?
CO2
Which of the following is necessary for oxidative phosphorylation?
Oxygen
What is the role of oxygen in oxidative phosphorylation?
To act as the final electron acceptor in the chain
True or false: Reduced NAD and FAD release their hydrogen atoms as protons and electrons in the Krebs cycle.
False
Which stage of aerobic respiration yields 2 ATP and NADH?
Glycolysis
What happens to the hydrogen atoms carried by NADH and FADH in the final stage of aerobic respiration?
They are released as protons and electrons
True or false: Oxygen is necessary for the conversion of pyruvate into acetyl CoA.
False
Which stage of aerobic respiration produces CO2?
Krebs cycle
True or false: The electron transport chain uses protons to produce ATP.
True
What happens to hydrogen atoms in all three stages of aerobic respiration?
They are transferred to NAD to produce reduced NAD
Which stage of aerobic respiration can occur in the absence of oxygen?
Glycolysis
What is the main purpose of the electron transport chain in aerobic respiration?
To produce ATP
True or false: Glycolysis produces NADH which carries electrons to the Krebs cycle.
False
What is the function of the electron transport chain in aerobic respiration?
To produce ATP
Which type of respiration can occur in the absence of oxygen?
Anaerobic respiration
True or false: The Krebs cycle produces CO2, ATP, and reduced NAD and FAD in equal amounts.
False
Which stage of aerobic respiration occurs in the cytoplasm?
Glycolysis
True or false: Glycolysis yields more ATP than the Krebs cycle.
False
Which molecule enters the Krebs cycle after being converted from pyruvate?
Acetyl CoA
Study Notes
- Aerobic respiration of glucose has 4 stages: glycolysis, link reaction, Krebs cycle, and electron transport/chemiosmosis.
- Glycolysis occurs in the cytoplasm and splits glucose into pyruvate.
- The link reaction converts pyruvate into acetyl CoA which enters the Krebs cycle.
- Hydrogen atoms are transferred to NAD to produce reduced NAD in all three stages.
- NADH and FADH release their hydrogen atoms as protons and electrons in the final stage.
- Electrons pass through an electron transport chain and protons are used for ATP synthesis.
- The presence of oxygen is necessary for oxidative phosphorylation.
- Glycolysis can occur in the absence of oxygen in anaerobic respiration.
- Glycolysis yields 2 ATP and NADH which carries electrons to the electron transport chain.
- The Krebs cycle produces CO2, ATP, and reduced NAD and FAD.
Test your knowledge on the aerobic respiration of glucose with this quiz! From glycolysis to the Krebs cycle and electron transport/chemiosmosis, this quiz will challenge your understanding of the four stages involved. Learn about the link reaction, the importance of NADH and FADH, and how ATP is synthesized. See if you understand the differences between aerobic and anaerobic respiration and the role of oxygen in oxidative phosphorylation. Test your knowledge on the production of CO2
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