Cellular Respiration Quiz Answers PDF

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These are the Cellular Respiration Quiz Answers for Colleen Higgens. The quiz is put on blackboard....

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1. Eukaryotic cells require oxygen to: a. D) Serve as an electron acceptor in the electron transport chain 2. Oxygen is reduced to water in the cell's: a. mitochondria - at the end of the electron transport system of cell respiration. 3. Which of the following is an example of a molecule being oxidized (i.e. lose electrons)? a. NADH being converted into NAD+ i.

NOTES: Oxidation occurs when an atom

LOSES electrons. Reduction occurs when an atom GAINS electrons. You can figure out which atoms have gained/lost electrons by looking at "oxidation numbers", which are kind of like charges. 4. The three main products of glycolysis are: a. ATP. NADH, and pyruvic acid. 5. Why do biologists believe glycolysis evolved before the Krebs cycle and the electron transport chain? a. c--glycolysis is used by all organisms, but the Kreb's cycle and electron transport chain are not 6.

During glycolysis, a glucose molecule will be split into two, three-carbon ________ molecules. a. The two 3-carbon molecules glucose is split into are converted through a series of steps into pyruvate.

7. The Krebs cycle extracts most of the energy in a

glucose molecule and stores it in: a. NOT ATP b. Maybe NADH 8. The chemical equation that summarizes the process of cellular respiration is: a. C6H12O6 + 6O2 → 6CO2 + 6H2O + 36ATP 9. What is the energy source used to drive ATP synthase to produce ATP? a. the H+ concentration gradient across the inner

mitochondrial membrane. 10. The enzyme that creates ATP during electron transport

is called: a. ATP Synthase 11. The majority of ATP in aerobic respiration is produced by: a. during the electron transport chain 12. What does oxygen allow humans to do? a. make ATP from food 13. Certain drugs prevent the formation of a hydrogen ion gradient across the inner mitochondrial membrane. What is the most likely consequence? a. b. No ATP would be made during transport of electrons down the respiratory chain....