For the electron transport chain, all are inhibitors except: Select one: O a. Antimycin A O b. fluoroacetate c. Oc. Amytal O d. NaN2
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- Which of the following pathways requires molecular oxygen (O2)? a. aerobic respiration b. lactate formation c. alcoholic fermentation d. photosynthesisA mutation has damaged the formation of oxaloacetate. What process will be impaired? a. electron transport chain b. citric acid cycle c. chemiosmosis d. ATP synthaseWhat specific reaction cannot occur due to the presence of cyanide? A.Transfer of electrons to co-enzymes B.Inability to strip a carbon from pyruvate C.Transfer of electrons to and between carrier proteins D.Addition of a phosphate onto ADP to make ATP
- What is / are the advantages of having a step by step breakdown pathway? Select all the correct answers. Select one or more: a.Creates multiple point of regulation b.controlled capture of released energy c.multiple entry points for breakdown substrates d.generates intermediates that can be used in anabolic metabolismAll are characteristics of catabolic reactions except a. have energy poor products b. capture energy in the form of ATP c. require coenzyme like NAD+ d. yield a greater number of products compared to anabolic reactionsWhich of the following statements is false? Enzymesa) bind to substrates.b) lower the energy of activation.c) convert coenzymes to products.d) speed up biochemical reactions.e) can be named after the kinds of reaction they catalyze.
- Most oxidation reactions in microbial bioenergetics involve thea. removal of electrons b. addition of electrons c. addition of oxygen d. removal of oxygenCyanide makes a bond to cytochrome in the electron transport chain located in the mitochondria, rendering the electron transport chain useless. The cyanide ingestion in death due to which of the following? a) Starvation, due to an inability to create glucose.b) Build up of lactic acid.c) Inability to take in oxygen through the lungs.d) Cellular death from lack of energy.If an organism tests positive for catalase, which of the following is MOST likely true about the organism? A. It returns nitrogen back to the atmosphere B. It can break down plasma membranes C. It creates H2O as a product of respiration D. It can only do homolactic fermentation
- The act of cooking a steak on a barbeque grill heats the meat to a high enough temperature to: a. promote the Maillard reaction b. kill bacteria on the surface of the meat c. denature proteins in the meat making them easier for humans to digest d. hydrolyze collagen fibers into fragments that make meat more tender and easier for humans to digest e. burn the Yule logWhich of the following is likely to happen in a muscle cell in an anaerobic environment? Question 9 options: a) The conversion of pyruvic acid to lactic acid b) The Krebs Cycle c) Photosynthesis d) The conversion of pyruvic acid to Acetyl CoAChoose the catabolic reaction. a. breaking down a complex molecule b. synthesizing a complex molecule c. CO2 and H2O combining to form carbonic acid.
