General Biochemistry II
General Biochemistry II BCHM 56200
Popular in Course
Popular in Biochemistry
This 5 page Class Notes was uploaded by Braden Runolfsson on Saturday September 19, 2015. The Class Notes belongs to BCHM 56200 at Purdue University taught by Xiaoqi Liu in Fall. Since its upload, it has received 68 views. For similar materials see /class/207993/bchm-56200-purdue-university in Biochemistry at Purdue University.
Reviews for General Biochemistry II
Report this Material
What is Karma?
Karma is the currency of StudySoup.
Date Created: 09/19/15
Practice exam I No 1 Which molecule can couple a 2e carrier with a le carrier A NAD B FAD C Acetyl CoA D ATP Answer B No 2 Draw the structure of ATP No 3 Which molecule can serve as a phosphor group donor to ADP to form ATP Glucose6phosphate Glycerol3phosphate Phosphoenolpyruvate Fructose6phosphate Answer C cow No 4 Name the enzyme that uses the 2quotd ATP during glycolysis Answer Phosphofructokinase No 5 What is the nature of reaction 4 of glycolysis A Carboncarbon bond cleavage B Dehydration C Oxidationreduction D Phosphorylation Answer A No 6 GAPDH uses which of the followings as a cofactor A FAD B TPP C Biotin D NAD Answer D No 7 Which two steps of glycolysis generate ATP 1 and 3 3 and 10 3 and 7 7 and 10 Answer D cow No 8 Which step of glycolysis generates NADH A Reaction 5 B Reaction6 C Reaction7 D Reaction 8 Answer B No 9 Overall ATP yield of conversion of lglucose to 2 pyruvates is A 1 ATP B 2 ATP C 3 ATP D 4 ATP Answer B No 10 Fill in the blanks to nish the overall reaction of glycolysis Glucose 2NAD 2ADP 2Pi 2Pyruvate 2NADH 2ATP 2H20 No 11 Name two enzymes that are used to convert pyruvate to ethanol in yeast Answer Pyruvate decarboxylase and alcohol dehydrogenase No 12 Which enzyme uses TPP as a cofactor Alcohol dehydrogenase Lactate dehydrogenase Pyruvate decarboxylase Pyruvate kinase Answer C UOUJCD No 13 Fill in the blank to nish the sentence The active form of TPP is called No 14 Fill in the blank to nish the sentence Yeast consume more sugar when growing anaerobically than when growing aerobically this is called the Pasteur effect No 15 Which enzyme is the major uxcontrolling enzyme of glycolysis Hexokinase Phosphofructokinase Pyruvate kinase GAPDH Answer B UOEJCD cow No 16 Which of the following acts as a cofactor of transketolase NAD TPP Biotin PLP Answer B cow No 17 Transaldolase transfer how many carbon units A 1C B 2C C 3C D 4C Answer C No 18 Which enzyme is used in the oxidative phase of pentose phosphate pathway Glucose 6phosphate dehydrogenase Transketolase Transaldolase Phosphopentose isomerase Answer A UOUJCD No 19 Which of the following is not involved in glycogen synthesis Branching enzyme Glycogen synthase UDPglucose pyrophosphorylase Phosphoglucomutase Answer D No 20 Which of the following is the cofactor of glycogen phosphorylase NAD PLP Biotin TPP Answer B cow No 21 Fill in the blanks to finish the sentence During exercise ATP is relatively LOWchoose Low or High glycogen phosphorylase is stimulated choose stimulated or inhibited glycogen breakdown is favored choose favored or inhibited cow No 22 Fill in the blanks to nish the sentence Phosphorylation of glycogen synthase GS leads to its inactivation choose activation or inactivation while dephosphorylation of GS results in its activation choose activation or inactivation No 23 Fill in the blanks to nish the sentence Right after a big meal your pancreas will release insulin choose insulin glucagon or epinephrine this will lead to activation choose activation or inactivation of phosphoprotein phosphatase 1 consequently glycogen smthesis choose glycogen breakdown or glycogen synthesis No 24 Fructose26bisphosphate is a Inhibitor of phosphofructokinase and activator of fructosebisphosphatase Inhibitors of both phosphofructokinase and fructosebisphosphatase Activator of both phosphofructokinase and fructosebisphosphatase Activator of phosphofructokinase and inhibitor of fructosebisphosphatase Answer D UOUUCD No 25 What is the activated form of glucose that serves as the substrate for glycogen synthesis ADPglucose GDPglucose UDPglucose UTPglucose Answer C No 26 How many high energy nucleotide triphosphates are needed to generate two molecules of glucose by gluconeogenesis Three Four Six Ten Twelve Answer E mcowgt No 27 In cells biotin serves as a carrier for which ofthe following cow Acetyl groups Carboxyl groups Electrons Methyl groups Answer B No 28 Glycogen phosphorylase generates what molecule A Glucose Glucose lphosphate Glucose 6phosphate Glucose 2phosphate Answer B COP No 29 What is the committed step enzyme for glycolysis Hexokinase Phosphofructokinase Pyruvate kinase None of the above Answer B 9003 No 30 Fill in the blanks to nish the sentence For an early morning runner with breakfast Glucose in blood is lowchoose low or high pancreas will release glucagon choose glucagon or insulin thus increased choose increased or decreased cAMP Phosphorylation level change eventually leads to activation choose activation or inactivation of FBPase2 and inactivation choose activation or inactivation of PFK2 and decreased choose decreased or increased F26P Finally change of level of F 26P leads to inhibition choose inhibition or activation of PF K and activation choose inhibition or activation of F BPase thus in favor of gluconeogenesis choose glycosis or gluconeogenesis No 31 During gluconeogenesis what is the common molecule that all precursors have to be converted to Acetyl CoA Lactate Pyruvate Oxaloacetate Answer D cowgt No 32 What are two enzymes that are used to convert pyruvate to PEP Pyruvate carboxylase and pyruvate kinase Pyruvate dehydrogenase and PEPCK Pyruvate decarboxylase and PEPCK Pyruvate carboxylase and PEPCK Answer D UOUJCD