Popular Oxygen Quiz
14 Questions
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Questions and Answers
- 1.Assume that a eukaryotic cell has abundant glucose and O2 but needs ATP. The proton gradient in mitochondria of this cell will be generated by __________ and used primarily for _________ .
- A.
Fermentation; NADH synthesis
- B.
Glycolysis; production of water
- C.
Electron transport chain; production of water
- D.
Electron transport chain; ATP synthesis
- 2.Which process in eukaryotic cells will normally proceed whether O2 is present or absent?
- A.
Krebs cycle
- B.
Fermentation
- C.
Glycolysis
- D.
Oxidative phosphorylation
- 3.The Krebs cycle...
- A.
Uses oxygen
- B.
Uses ATP and NADH
- C.
Produces carbon dioxide
- D.
Occurs in the cytosol
- 4.The electron acceptor for glycolysis is.........
- A.
NAD+
- B.
Carbon dioxide
- C.
Water
- D.
FAD
- 5.During which phase of cellular respiration is ATP not produced directly by substrate level phosphorylation?
- A.
Krebs cycle
- B.
Glycolysis
- C.
All produce ATP by substrate level phosphorylation
- D.
Electron transport chain
- 6.Oxygen is not required during glycolysis.
- A.
True
- B.
False
- 7.Cellular respiration consists of three interrelated metabolic processes. The first process to occur is called _____1_______.
- 8.Glycolysis takes place in the _______.(where in thecell?)
- 9.During the reactions in glycolysis, glucose a six carbon sugar is broken down into two ____(number of carbons) carbon sugars.
- 10.The next set of reactions resulting in the complete breakdown of pyruvate is called the ___.
- 11.Krebs cycle occurs in the __________ .
- 12.Most of the energy removed from the carbon containing molecules during krebs cycle is in the form of _____________ molecules.
- 13.NADH molecules are transferred to the___________ located in the inner membrane of the mitochondria.
- 14.Chemiosmosis is the use of chemical energy to pump hydrogen ions across a membrane into a compartment.
- A.
True
- B.
False
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