Rutgers BIOCHEMISTRY 301 - Summer 2008 Second Exam (9 pages)

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Summer 2008 Second Exam



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Summer 2008 Second Exam

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Pages:
9
School:
Rutgers University, New Brunswick
Course:
Biochemistry 301 - Intro Biochemistry
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Name L Biochemistry 694301 Second Exam Dr Deis Mon Aug 1 1 2008 Row Letter Seat Number This exam consists of two parts Part I is multiple choice Each of the 25 questions is worth two points Answer Part I questions on this sheet below Answer the Part I1 questions on the question pages Please use BLOCK CAPITAL letters like this A B C D E Not lowercase 1 A 18 c sh is ar stu ed d y vi re aC s o ou urc rs e eH w er as o co m 10 GRADE Part I Total Part 11 q 6 I did not cheat on this exam Th 11 1 11 2 11 3 I1 4 11 5 SIC Part I1 Total 3 Total I I1 n https www coursehero com file 6195944 Second Exam Aug 08 694 301 Second Exam page 2 Name L assumption can we make about the energetics of simple osmosis D Low K means tight binding is zero and K 1 0 E Osmotic pressure nRT C AGOyis positive Which of the following is an ABC transporter A Calcium pump D Acetylcholine receptor u l t i d r res u protein E GLUT4 receptor C Voltage gated K channel 3 Symport and Antiport are two examples of what K simple diffusion Wprimary active tra sport facilitated diffusion 6 n o n e of the above C secondary active transport Protein Kinase A causes phosphorylation of the target sequence RRGSE in its substrates The Regulatory Subunit has the sequence A ARGSE RRGAE B RAGSE E RRGSA C RRASE 4 5 sh is ar stu ed d y v i re aC s o ou urc rs e eH w er as o co m 2 The second messenger for the system that activates ProteinIenase A is A Calcium D cyclic GMP B 13 BPG cyclic AMP C DAG 7 8 9 Protein Kinase C activation is triggered by G protein activation of a membrane bound enzyme Phospholipase A A D D E all of the above In the fluid mosaic model the mortar of the mosaic is lipid and the stones are A cholesterol D oligosaccharides roteins E Calcium sulfate crystals RNA What is generally true about glycoproteins proteins with sugars attached A found in cytoplasm transmembrane proteins have sugars on OUTSIDE surface C transmembrane proteins have sugars on INSIDE surface D transmembrane proteins have sugars on BOTH surfaces E none of the above Th 6 Which membrane lipid is represented below A sphingosine D Sphingomyelin weramide E a Ganglioside C a Cerebroside OH I c c c c oIJ cN a https www coursehero com file 6195944 Second Exam Aug 08 694 301 Second Exam page 3 Name The 4epimerase which changes Galactose into Glucos e allowing it to enter Glycolysis acts on which substrate UDP Galactose D Galactitol B Gal I P E Gal 6 P C plain Galactose 11 Which enzyme of Glycolysis has a large positive standard free energy change In other words it would much rather go backward D PFK 1 A Hexokinase Q ldolase E Glucokinase C G3PDH 12 13 sh is ar stu ed d y v i re aC s o ou urc rs e eH w e r as o co m 10 The mechanism of Aldolase begins with a covalent reaction between carbon two of F1 6 BP and a residue of which amino acid in the enzyme s active site D his A ser B cys E glu QY What is the value of Atkinson s Energy Charge Function when AMP 5 M ADPI 2 M and ATP 3 M Ll A 0 25 D 0 5 3 i L B 0 33 E 0 65 I0 D 0 4 F 0 9 T T 4 2 14 The complete process of gluconeogenesis resulting in production of Glucose occurs mainly where in the human b o d g A brain B adipose C salivary gland Oxidation of which compound will produce the least energy D methane A formaldehyde E formic acid a oxide Th 15 7 16 Using the El E2 E3 terminology for Pyruvate DH Complex Lipoamide is covalently AC I c a n Y attached to which enzyme A E l c I33 C 6 k 7Pr A I D none of the above 0 i 0E2 TAD c t rian7 And Dihydrolipoyl Transacetylase is also known as A E l C E3 9 2 D none of the above priobrr 17 https www coursehero com file 6195944 Second Exam Aug 08 f r 694 301 Second Exam page 4 Name L 18 What cofactor would be most likely to be used for the reduction of a carbon carbon double bond CH CH CH CH A FADH tucc P z E H 19 The RQ or respiratory quotient is the Vmax of oxvgen use divided by the resting rate whatisthe RQ for normally coupled mitochondria Note the R Q for uncoupled mitochondria is 1 i a f A 1 10 4 u cj f B 2 5 E 12 5 e5 3 C 7 5 o The compound Atractyloside inhibits A Complex I B Complex 111 C Complex IV sh is ar stu ed d y vi re aC s o ou urc rs e eH w er as o co m 20 D Uncoupling D P A T Translocase P kGlycer01 P Shuttle 21 In the mitochondria1 electron transport chain cytochrome c is reduced directly by m c D a E a F none of the above 22 In brain and skeletal muscle complete metabolism of a molecule of Glucose yields how many ATP C 32 B3q I The Citric Acid Cycle occurs where in eukaryotic cells A the cytoplasm D the mito intermembrane space B the lumen of the E R q t h e mitochondria1 matrix C the nucleus 24 Which statement is incorrect Succinate Dehydrogenase s oxidative decarboxylation A has iron sulfur clusters t a l y z e an Ex11 of the above contains FAD C contains integral membrane proteins 25 Th 23 If Homer Simpson had actually eaten the toxic part of the Fugu fish what would be his first symptom of poisoning A heart explodes lips feel numb B a red rash E upset stomach C pain in the joints 6 1 https www coursehero com file 6195944 Second Exam Aug 08 694 301 Second Exam page 5 PART I1 1 a Name Answer these questions here on the question pages Draw a steroid nucleus and d k Lecithin phosphatidyl choline 0 3 c A 0 C sh is ar stu ed d vi y re aC s o ou urc rs e eH w e r as o co m I b Label each lipid prokaryotic eukaryotic or archaeal c Sketch the Acetylcholine Receptor an occur when Acetylcholine amves at the p o s t s y p x m m b m e W h main e difference between how the ACH Receptor allows sodihm into the neuron and how the Sodium channels found away from the synaptic cleft on the neuron membrane do the same job I I …


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