Cellular Respiration Quiz
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If ADP is phosphorylated then what is this indicating in the reaction?
A. ADP is forming into ATP
B. ADP is becoming AMP
C. ADP is being used to power other reactions
D. ADP is being created by the reaction
Where are the proteins of the electron transport chain located?
A. cytosol
B. mitochondrial inner membrane
C. mitochondrial intermembrane space
D. mitochondrial matrix
Which of the three steps of cellular respiration is anaerobic?
A. Glycolysis
B. Citric Acid Cycle
C. Kreb’s Cycle
D. Electron Transport Chain
What are the total outputs of glycolysis?
A. 4 ATP, 2 pyruvate, 2 NADH
B. 2 ATP, 2 pyruvate, 2 NADH
C. 2 ATP, 2 pyruvate, 1 NADH, 1 FADH2
D. 4 ATP, 1 pyruvate, 3 NADH
During cellular respiration, acetyl CoA accumulates in which location?
A. mitochondrial matrix
B. mitochondrial inner membrane
C. mitochondrial intermembrane space
D. cytosol
Why is ATP considered the most significant energy carrying molecule?
A. It’s delta G is negative.
B. ATP has different bond energy between its phosphate groups.
C. ATP can hold large amounts of energy between all of its bonds.
D. ATP’s positive delta G contributes to the large amounts of energy between its 3rd and 2nd phosphate groups.
All of the following are functions of the citric acid cycle EXCEPT
A. addition of electrons and protons to oxygen to form water.
B. production of ATP.
C. release of carbon dioxide.
D. production of NADH.
Does the mitochondria have its own DNA?
A. Yes!
B. No!
How many carbons are in glucose?
A. 2
B. 4
C. 6
D. 8
The oxygen consumed during cellular respiration is involved directly in which process or event?
A. accepting electrons at the end of the electron transport chain
B. citric acid cycle
C. glycolysis
D. oxidation of pyruvate to acetyl CoA
Which process in eukaryotic cells will proceed normally whether oxygen (O2) is present or absent?
A. electron transport
B. electron transport
C. glycolysis
D. citric acid cycle
Where does cellular respiration take place in eukaryotic cells?
A. Mitochondria
B. Chloroplast
C. Rough ER
D. Cell Membrane
Where does glycolysis takes place?
A. cytosol
B. mitochondrial amtrix
C. mitochondrial inner membrane
D. mitochondrial intermembrane space
What is the term used for the metabolic pathway in which glucose (C6H12O6) is degraded to carbon dioxide (CO2) and water?
A. oxidative phosphorylation
B. cellular respiration
C. glycolysis
D. fermentation
Where does glycolysis take place in the cell?
A. Mitochondria
B. Cytosol
C. Cell Membrane
D. Mitochondrial Matrix
How many membranes does a mitochondria have?
A. 1
B. 2
C. 3
D. 4
In glycolysis, for each molecule of glucose oxidized to pyruvate
A. two molecules of ATP are used and two molecules of ATP are produced.
B. two molecules of ATP are used and four molecules of ATP are produced.
C. two molecules of ATP are used and six molecules of ATP are produced.
D. four molecules of ATP are used and two molecules of ATP are produced.
Why does the oxidation of organic compounds by molecular oxygen to produce CO2 and water release free energy?
A. The covalent bond in oxygen is unstable and easily broken by electrons from organic molecules.
B. The covalent bonds in organic molecules are higher energy bonds than those in water and carbon dioxide.
C. The electrons have a higher potential energy when associated with water and carbon dioxide than they do in organic compounds.
D. Electrons are being moved from atoms that have a lower affinity for electrons (such as C) to atoms with a higher affinity for electrons (such as O).
In addition to ATP, what are the end products of glycolysis?
A. CO2 and NADH
B. CO2 and pyruvate
C. NADH and pyruvate
D. CO2 and H2O
Which of the following statements is correct about an oxidation-reduction (or redox) reaction?
A. The molecule that is oxidized loses protons.
B. The molecule that is reduced loses electrons.
C. The molecule that is reduced gains electrons.
D. The molecule that is reduced gains electrons.
Where does the Citric Acid Cycle (Krebs Cycle) happen in the cell?
A. Cytosol
B. Inner Mitochondrial Membrane
C. Cell Membrane
D. Mitochondrial Matrix
Cellular respiration harvests the most chemical energy from which of the following?
A. substrate-level phosphorylation
B. chemiosmotic phosphorylation
C. generating carbon dioxide and oxygen in the electron transport chain
D. transferring electrons from organic molecules to pyruvate
The ATP made during glycolysis is generated by
A. electron transport.
B. chemiosmosis
C. substrate-level phosphorylation.
D. photophosphorylation.
Pyruvate Oxidation creates a specific numbered carbon molecule at the end of it’s process. What is the number of carbons for this molecule?
A. 2
B. 3
C. 6
D. 1
Which process is the largest contributor to the release of CO2
A. Citric Acid Cycle or Krebs Cycle
B. Pyruvate Oxidation
C. Glycolysis
D. Oxidative Phosphorylation
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