Bio Lon Capa Quiz Questions 1 The Function of NAD is to a Hasten the release of energy when the cell has been deprived of oxygen b Carry hydrogen atoms and free energy from compounds being oxidized and to give hydrogen atoms and free energy to compounds being reduced c Cause the release of energy to adjacent cells when energy is needed in aerobic conditions d Block the release of the adjacent cells e None of the above are accurate functions for NAD 2 Which one of the following is not a direct product of the Kreb s Cycle a FADH2 b ATP c GTP d CO2 e All of the above are direct products 3 Which is NOT true of glycolysis a There are 2 ATPS used and 4 ATPs made b It starts with a 6 carbon sugar and ends with the production of CO2 and H2O It occurs in the cytoplasm of living cells It has an investment phase and a payoff phase c d e Two NAD are reduced to NADH per molecule of glucose 4 Identify each of the following reactions as endergonic or exergonic a Glucose Galactose Lactose b Glucose Phosphate Glucose 6 phosphate c NAD 2 electrons H NADH d 1 3 Bisphosphoglycerate 3 Phosphoglycerate Pi 5 Which one of the following function location relationships is incorrect a Citric Acid Cycle Mitochondrial Matrix b Electron transport chain and ATP synthase Mitochondrial inner membrane c Acetyle CoA formation cytosol d Glycolysis Cytosol e Oxidative Phosphorylation mitchocondrial inner membrane 6 Which of the following statements about mitochondria is incorrect a Pyruvate must pass through a porin in order to ultimately be localized to the mitochondrial matrix b The outer mitochondrial membrane contains c d porins which allows molecules of a certain size to pass In bacteria the ETC occurs in the inner mitochondrial membrane The pH of the intermembrane space is approximately 7 2 Protons are unable to penetrate the inner mitochondrial membrane but can get through the outer mitochondrial membrane 7 The gain of electrons is referred to as while the e loss of electrons is referred to as a Dephosphorylation phosphorylation b Condensation hydrolysis c Oxidation reduction d Reduction oxidation e Hydrolysis condensation 8 In a mammalian cell Glycolysis occurs in the the Krebs cycle occurs in the and the Electron Transport chain occurs in the a Mitochondrial matrix mitochondrial matrix inner membrane of the mitochondria b Cytoplasm mitochondrial matrix outer membrane of the mitochondria c Cytoplasm mitochondrial matrix inner membrane of the mitochondria d Cytoplasm cytoplasm outer membrane of e Cytoplasm Cytoplasm inner membrane of the mitochondria the mitochondria 9 Which one of the following statements about ATP is incorrect a ATP synthesis in living cells is a result of the breakdown of a carbon source such as glucose in a series of oxidation steps in one or more metabolic pathways b The hydrolysis of ATP is an exergonic c reaction ATP is the most common source of energy in the cell d ATP gets reduced to NADH during the oxidation of glucose in an aerobic environment e ATP is a ribonucleoside triphosphate 10 True or false The final electron acceptor at the end of the electron transport chain is carbon dioxide 14 In biological reactions electrons are transferred via a True b False 11 Identify if each of the following statements about metabolism is true or false a Catabolic reactions have an overall negative b c G During the catabolism of glucose energy is harvested in one large energy yielding step Substrate level phosphorylation occurs during both the TCA cycle and during glycolysis d The most stable form of hydrogen in a cell is water and the most stable form of carbon is carbon dioxide 12 Which one of the following is not a process of aerobic respiration a Oxidative phosphorylation b Citric acid cycle c Glycolysis d Lactate fermentation e Acetyl CoA formation 13 Which one of the following represents an accurate difference between the inner and outer mitochondrial membranes a The outer membrane has porins which allow molecules to pass while the inner membrane is imprenetrable to ions or small molecules b The Krebs Cycle takes place in the outer membrane and NADH and FADH2 are shuttled to the inner membrane for the ETC c Protons can easily cross the inner membrane but not the outer membrane keeping them trapped in the intermembrane space and causing the formation of a electrochemical gradient Incorrect Only the outer membrane forms cristae while the inner membrane does not d None of the above the inner and outer mitochondrial membranes are identical in structure and function hydrogens When reducing FAD how many electrons protons are transferred a 3 electrons and 1 proton b 1 electron c 4 protons d 4 electrons e 2 electrons 15 Which of the following statements about glycolysis is correct a Glycolysis takes place in the cytoplasm for anaerobic organisms and in the mitochondria for aerobic organisms c b Glycolysis is a more complicated process i e more reactions in a human than in an anaerobic bacterium Glycolysis involves at least one redox reaction in the pathway and therefore can only be performed by aerobic organisms d The ATP molecules generated from glycolysis are synthesized via oxidative phosphorylation e Glucose gets oxidized in a series of steps into two 3 carbon molecules called pyruvate yielding 2 molecules of ATP and 2 molecules of NADH per glucose molecule during the process 16 Which of the following is not an oxidation reaction a Glyceraldehyde 3 phosphate 1 3 bisphosphoglycerate ketoglutarate Succinyl CoA b c Pyruvate Acetyl S CoA d Succinate Fumarate e NAD NADH 17 Which one of the following is not a product of the citric acid cycle a Carbon Dioxide b FADH2 c Water d GTP then converted to ATP e NADH 18 Ions move freely through the outer membrane of the mitochondria via a ATP Snythase b Complex I c Complex IV d Porins e Complex III 19 NADH Dehydrogenase also commonly refered to as 24 Which one of the following statements about Complex I a b Is located in the cytoplasm of prokaryotes Is a complex of enzymes involved in krebs cycle c Receives electrons from the oxidation of FADH2 Is located in the mitochondrial inner membrane of eukaryotes Is a type of porin d e 20 If an E Coli culture is grown under anaerobic conditions which one of the following statements is correct a Less ATP is made during glycolysis per molecule of glucose than under aerobic conditions b More ATP is made during glycolysis per unit time than would be produced aerobically c GTP is utilized as an energy source instead of