Consider the function of the cofactor FAD. Which of the following makes it unique (different) from NAD+? Select all that apply. a. Can facilitate single electron transfers b. Is associated with an enzyme and not a mobile electron carrier c. Serves to facilitate redox reactions d. s an electron carrier in the TCA cycle

Which of the following final electron acceptors is used during anaerobic respiration? a. lactic acid b. pyruvate c. glucose d. nitrate e. water

The figures below show the two different types of anaerobic respiration: alcoholic fermentation (left) and lactate fermentation (right). Read the descriptions in the table that follows, and then select whether each statement describes alcoholic fermentation, lactate fermentation, or both. Check all that apply.   Requires two ATP to run glycolysis   A. Lactate Fermentation   B. Alcoholic Fermentation

The ultimate acceptor of electrons in the nadh electron transport chain is  a. H+ b. ATP  c. O2 d. NADH

Mark the following statements as true or false. If a statement is false, correct it to make a true statement. a. During an oxidation-reduction reaction, the compound with the greatest electron affinity accepts electrons and is oxidized. b. The electromotive force is generated by the flow of electrons from one substance that is oxidized to another substance that is reduced. c. NAD+ and FAD are electron carriers in the cell. d. ATP is the “money” that the cell uses to “pay for” the cell’s exergonic reaction.

The following image is a schematic of the metabolic processes occurring in a plant contained in a closed container.   A=Light Dependent reactions B=Glycolysis C=Light Independent Reactions D=Kreb's cycle E=electron transport chain   2a) Use the figure above to explain the conditions in which the oxygen concentration remains constant in the container. b) 2-carboxyarabinitol-1,5-bisphosphate (CABP) is an inhibitor of the enzyme rubisco. Which pathway would this affect most?

NADH (Select all choices that apply)   A. is an oxidized molecule   B. is the reduced form of NAD+  C. is produced in photosynthesis non-cyclic reactions D. is responsible for allowing more ATP production than FADH2 E. plays a role in glycolysis, transition, Krebs cycle and the ETS

Chemical potential energy stored in the reduced coenzyme, NADH or FADH2 is converted to chemical potential energy in ATP in which of the following processes? a. the citric acid cycle b. glycolysis c. beta oxidation d. oxidative phosphorylation. e. all of the above

Cancer cells need more DNA synthesis but the NADPH/ NADP* ratio is high. Which of the following statement is TRUE? Flux through the oxidative reactions is low and the nonoxidative reactions are reversed in order to form ribose 5-phosphate. O b. The oxidative reactions and the isomerase supply both ribose 5-phosphate and NADPH with little flux through the nonoxidative branch. O C. Flux through the oxidative reactions increases and ribose 5-phosphate is shunted into glycolysis by the nonoxidative reactions. Od. The ribose 5-phosphate is recycled through the oxidative steps via the nonoxidative reactions and gluconeogenesis.

Which of the following statements about aerobic respiration is true?   a. Oxygen is the final electron acceptor in the citric acid cycle. b. Coenzyme-A is a substrate in the reaction that generates a key reactant for the citric acid cycle. c. Redox reactions occur in the electron transport chain (ETC), but not during the citric acid cycle and not during glycolysis. d. The citric acid cycle is the main ATP producer in aerobic respiration.