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- Which of the statements about alcohol producing fermentation is FALSE? a) Lactic acid may be produced as a byproduct b) It produces CO2 c) It allows the cell to continue producing ATP when oxygen is low d) It generates more ATP than aerobic respirationWhy must nitrogen fixation occur in an anoxic (i.e., oxygen-free) environment? a)Because H2 is an additional product of nitrogen fixation, and the combination of H2 and O2 would cause the cell to combust. b)Oxygen poisons the dinitrogenase enzyme by entering the FeMo cluster c)Oxygen competes as an electron acceptor in the ETC, so electrons cannot be passed to N2. d)Oxygen "steals" electrons from the dinitrogenase reductase, producing free radicals.25
- Ex. 35 = Products Formed in Milk: The Litmus Milk Test (p.297) How does the litmus milk test work? What are the possible outcomes? What do these outcomes tell you about the bacterial metabolism? Ex. 36 = Test for Cytochrome c (Oxidase) and Catalase Activities (p. 303) How does the oxidase test work? What does it tell you about bacterial metabolism? How does the catalase test work? What does it tell you about bacterial metabolism? What do positive/ negative results look like for these tests?11:39 11) Which of these statements is true of fermentation? a) It converts lactic acid into acetyl CoA b) It requires oxygen c) It requires high temperatures d) It happens when cells don't have a final electron acceptor e) All of these are true AWhat process is being represented by the image? A) Photosynthesis B) Respiration C)Anaerobic respiration D)Breathing
- 111) Describe what is a Futile Cycle.2) What are the two cycles related to carbohydrate metabolism that may undergo a Futile cycle?3) What is the end goal for a Futile Cycle?Define the following, and clarify the differences between them A) Fermentation B) Aerobic respiration C) Anaerobic respiration
- How does the body allocate food-derived fuel molecules?Why are anaerobic microbes important for making food?What are the different steps in oxidative phosphorylation? Which one is correct. a) The electron transport chain b) The investment phase c) ATP seemed d) The energy generation phase e) Glucolysis f) The fission phase