Biomolecules Questions and Answers

The organism in the picture below belongs to which subphylum of the Agnatha Urochordata O Vertebrata

Lamprey are a type of fish that belong to which Vertebrate Class O Chondrichthyes Agnatha O Actinopterigii Amphibia Osteichthyes

A 20 00 mL sample of 0 220 M triethylamine CH3CH2 3N is titrated with 0 544 5 2 x 10 4 What is the pH of the solution at the HCl K CH3CH 3N equivalence point O 8 24 O 7 00 O 3 28 O 5 76 10 72

Which statement about hemoglobin is correct O it has only beta sheet secondary structure it has both alpha helical and beta sheet structure O it has only alpha helical secondary structure it has only random coil structure

Select the correct answer David is interested in writing about seaweed fish and invertebrates for his research on oceans In which zone are seaweed fish and invertebrates found in an ocean OA B O c D intertidal zone pelagic zone benthic zone abyssal zone

Someone who violates a civil law will pay damages to the Ostate O judge O injured federal government

Mycobacterium O is revealed by the spore stain O is insensitive to lysozyme O is sensitive to lysozyme O is sensitive to penicillin O lyses in water

Which type of microbes can survive on dried prunes at room temperature mesophile alkaliphile non halophile psychrophile O thermophile

Eukaryote describes a domain of life True False

Check the 2 correct answers are macroelements O pyrimidine base vitamin Mo S

Example s of endergonic reaction s process es is are formation of a H gradient O translation O chemotaxis O light reaction all stated processes are endergonic YOR

CoQ is O involved in ATP synthesis an integral membrane protein involved in redox reaction O involved in active transport of H O a peripheral membrane protein

An Hfr strain donor stain carries only part of the F plasmid O True O False

The spliceosome is involved in O gene regulation O RNA processing O transcrption O recombinant DNA O translation

L74 Compare the pH of the mitochondrial matrix and the inter membrane space ist and passioni bas aves or sovitan A A The pH in both regions is the same B The pH is lower in the inter membrane space wola tudi brs smyans sris eurt bos strany od C The pH is lower in the matrix suryat emit bas ames ar idite D The comparison of pH varies from moment to moment depending on energy needs of the cell NAD ritos da

Which component of ATP synthase is the site of the proton channel ulo ni go to sloj sasmingo 48 A F1 B b subunit C F2 D FO imol nodo E g subunit A azyloxyla to anottosen adi exyladno 8 49 Which of the following couples chemiosmosis to energy storage anothsis tol toros me as fa49 A cytochromes niso vroterigest ti as TTA to not off ni vgrans bloty stavinyq gnimo sistel diw onidos B FADH2 C NADH ED ATP synthase bizo stalqos and mont bouboid sin ITA to slusalom ynsm work viatemiXoJOGA E electron transport 631 bosibixo al co bna beouber al COD

SIEVITYS 44 During aerobic respiration electrons travel downhill in which sequence A glucose ATP electron transport chain B food citric acid cycle ATP NAD C food glycolysis citric acid cycle NADH ATP D food NADH electron transport chain oxygen E glucose pyruvate ATP oxygen NADH RE Glove Bran 45 Which of the following statements is are true about enzyme catalyzed reactions A The free energy change of the reaction is opposite from the reaction in the absence of the four hunts Sastupalom 19lleme owd cini slupslom ano to tilge saworla qala birW 2E 45 qalerbirTW a Phospbur enzyme B The reaction is faster than the same reaction in the absence of the enzyme C The reaction always goes in the direction toward chemical equilibrium nasob noitos atriw rid E D A and B only E A B and C Shoitoset biograbne no esvlovni qota biriW 88 44 C 12 Stristeet srlt of babba stariqodq sinegroni ne ai qui doiriw nl CC D

IPLE CHOICE Choose the one alternative that best completes the statement or answers the question Teres 10 genau noth Shib A nist 52 Which process in eukaryotic cells will proceed normally whether oxygen O2 is present or absent 52 oqarimai norhals HOAM stop bisa sinis toriquoriq svitabi co H AM zipylools G sbp bos sidh nierb moaned oniosis 1 A glycolysis B the citric acid cycle C oxidative phosphorylation D electron transport DE chemiosmosis papaula hoold nariw betonse el nognoul 08 wal dgid al sacoulg boold 53 The direct energy source that drives ATP synthesis during respiratory oxidative phosphorylation is 53 A the thermodynamically favorable flow of electrons from NADH to the mitochondrial electron transport carriers B oxidation of glucose to CO2 and water C the final transfer of electrons to oxygen veni olidw wol right D the difference in H concentrations on opposite sides of the inner mitochondrial membrane E the thermodynamically favorable transfer of phosphate from glycolysis and the citric acid cycle intermediate molecules of ADP

42 In chemiosmotic phosphorylation what is the most direct source of energy that is used to convert ADP Pi to ATP A energy released as electrons flow through the electron transport system B energy released from substrate level phosphorylation C energy released from movement of protons through ATP synthase D No external source of energy is required because the reaction is exergonic E energy released from ATP synthase pumping hydrogen ions from the mitochondrial matrix JAMI 43 Glycogen synthesis in vertebrates requires A bloo A UDP le B ADP C ATP D UTP re E All of the above to activate glucose 1 phosphate ilqoriquifl E ADTS AS STA C 900 0 42 43

to answer the following questions Figure 9 1 illustrates some of the steps reactions of glycolysis in their proper sequence Each step is lettered to answer the questions 35 39 OPERITA CALCO Use sisvareg bas STA OH 300 SE Glucose 2 ATP A stage nogen 2 ADP om si tarw noital norgeorg altonnoun TETA 6 RA rigueur wollenobals es basalon vasos A Frustose 1 6 bisphosphate du mont belongs selltage TW gut anolong to avom mont boabe O sinograxa al noites Bond baniupan agano lo souos fermone on Which shtra Inibauhottam 2 Glyceraldehyde 3 phosphateya TTA in beanoelen van d C tariqoriq 1 seuls D 2 ADP 2 ATP 2P de 1 3 Bisphosphoglycerate 2 ADP 2 ATP 2 up the bow orutips BUR E 2 PGA 2 NAD 2 NADHupen edonov ni aliye moyo TOU A 2 H 0 Pyruvate 1 Citric acid cycle ovods od to ITA AVOB BV these letters HousBolishich odos gru hogemini norbols TTA secoul A GATTA sbp bbsodio bool forma STAHOAM pobo bbsodb zlavicola book Figure 9 1 ni hoqen nomala HOM book TA scula 35 Wilt to rain es 36 A smyns MULTIPLE CHOICE mose the one allemnative that best completes the 35 Which step shows a split of one molecule into two smaller molecules 5 amym Toode in ona el remate gw 36 Which step consists of a phosphorylation reaction in which ATP is the phosphate source Xavivans and to sorsed sell ni noll non ruse srit rural al noitacon sT 8 37 In which reaction does an intermediate pathway become oxidized wil niesog ayawls noites 37 Ino 8 ban A a Obas 38 38 Which step involves an endergonic reaction 39 In which step is an inorganic phosphate added to the reactant to the mitochon 39

9 2 showing the citric acid cycle as a guide to answer the following questions 29 32 po shinerbovelb naj sequue to NADH NAD Malate Fumarate FADH FAD B 10 Oxaloacetate Succinate ATP adidas Acetyl CoA A COA il Citrate Succinyl CoA ADP P er brc Isocitrate P us anul of arilogo only agnignid d CO ang bus seoulg sal A ITA ni tant 19 20 rond bris TTA bozofe sau 11 8 a Ketoglutarately asb bon gripaita il NAD bne slupsiom alilge dtod 11 CI of losolyo mont eviursion effuria 11 3 NADH NAD CO NADH diceab aizvicoyle si yow DS smysme sib oi abaid bubo Figure 9 2 29 Carbon skeletons for amino acid biosynthesis are supplied by intermediates of the citric acid cycle Smyne od to devos uit 29809h antbrid aid stia orylates svibbe ell most stoman slie sis molte si svicino asraysos 30 291193 Which intermediate would supply the carbon skeleton for synthesis of a five carbon amino acid A succinate 29 25 B malate C a ketoglutarate D isocitrate E citrate toubory art 8 otsibomistni no 30 Starting with one molecule of isocitrate and ending with fumarate what is the maximum number 30 of ATP molecules that could be made through substrate level phosphorylation A 1 B 24 C 12 D 2 sys1900 s A E 11 dua sd 5 svitidemoo B 31 How many reduced dinucleotides would be produced with four turns of the citric acid cycle ne 31 A 1 FADH2 and 4 NADH B 4 FAD and 12 NAD C 1 FAD and 4 NAD beam or han sivylooyla yd besilodetem ai taril sacoulg to slusion dons 107 C D 2 FADH2 and 8 NADH wolsdal beaubong estupelon SHOAHOAM to odmun Indol E 4 FADH2 and 12 NADH or 0 2 8 2 How many molecules of carbon dioxide CO2 would be produced by five turns of the citric acid cycle gniwollor gift to A 5 deg el 185 32

nolistnams bre alevicovig 8 33 Phosphorylation can be used to either inactive or activate enzymes This is a key element in theixo 33 it od C regulation of glucose metabolism Phosphorylation of glycogen phosphorylase phosphorylation of glycogen synthase A inactivates activates C inactivates inactivates B activates activates D activates inactivates E 2 slop 1

23 Sucrose is a disaccharide composed of the monosaccharides glucose and fructose The hydrolysis of sucrose by the enzyme sucrase results in by los ant A production of water from the sugar as bonds are broken between the glucose monomers B the release of water from sucrose as the bond between glucose and fructose is broken C breaking the bond between glucose and fructose and forming new bonds from the atoms of water QAM D utilization of water as a covalent bond is formed between glucose and fructose to form sucrase E bringing glucose and fructose together to form sucrose 24 Why is glycolysis described as having an investment phase and a payoff phase A It uses glucose and generates pyruvate B It uses stored ATP and then forms a net increase in ATP C It attaches and detaches phosphate groups D It both splits molecules and assembles molecules E It shifts molecular fu 23 24

A series of enzymes catalyze the reaction XYZ A Product A binds to the enzyme that converts X to Y abyactive catalytic site This binding decreases the activity of the enzyme berarsini at a site remote from its active 25 What is substance X dsso A an allosteric inhibitor B the product C an intermediate D a substrate E a coenzyme D 2 ATP void bibs onime 101 anotalole noche es art yiqque bloow stakberasini ribut 25 stanibone A stelam staantulgoisx s 26 Substance A functions as da tarw otsismui riw qnibns brus seboel to slupsiom now in 26 Snoitalyre qeoriq lovel steredua riguorobam od blostert sinolom ITA to S C ST I A A a coenzyme B the substrate C a competitive inhibitor TED an allosteric inhibitor or to emul wrot ruivi basuborg od blow asbitosbunib bouben yrism wol 18 E an intermediate

egyzo nilw gmidmos acontosio Isnigno Sor 18 The enzyme for the key regulatory step in glycogen biosynthesis is A UDP glucose B glycogen synthase C branching enzyme D glycogenin E phosphoglucomutase pyrophosphorylase erosynthesis ou al tromaista odili T staw 18 attruudus ant to vidners sri sulumide but aniston 916 exomet noliqhoenT 1 100 na noitelanca went to insmolade ortalamos tod til oviteln sno od 2000 JUM 19 The oxygen consumed during cellular respiration is involved directly in which process or event tibbs 19 A glycolysis sisitin brts CHOA OCH A B the phosphorylation of ADP to form ATP C the citric acid cycle devunya bas HOAM 8 slavutvq bns 500 HOAM bas CO G D the oxidation of pyruvate to acetyl CoA E accepting electrons at the end of the electron transport chain

16 What is proton motive force A movement of hydrogen into the intermembrane space biten som antwollo o to co 16 B movement of hydrogen into the mitochondrionar C the addition of hydrogen to NAD D the force required to remove an electron from hydrogen E the transmembrane proton concentration gradient 17 Where does glycolysis takes place A mitochondrial intermembrane space B mitochondrial matrix C cytosol of the cell D mitochondrial outer membrane E mitochondrial inner momb spus ross In batang si TTA O ni ancorala od to gol C jitiw balquos et aromec mara 17 Snierbs will in lins siis ensqqari indo CAM raw anidroso erostule lenigino SeriT 8 emots risgyzo bar nogonhyd rifiw snidos anionios nominala 19

12 In addition to ATP what are the end products of glycolysis tiqan alulloo gnhub barquenco magyxos 12 A H2O FADH2 and citrate B NADH and pyruvate C CO2 and pyruvate D CO2 and NADH E CO2 and H O TS alternative that best completes the statement or answers the question to Y sesturuogulzorgeodg me A 40 kcal mol B 20 kcal mol C 0 kcal mol D 20 kcal mol E 40 kcal mol eleylooyig A STA mot of 10A to noitelynorqeorig stil 6 sbyo bibe biti srl O 00 901 280T56 bstsoolast ed of 13 During a laboratory experiment you discover that an enzyme catalyzed reaction has a L G of 20 artupsr 90A mod ITA to slipglom eno in aleadinya srit OS kcal mol If you double the amount of enzyme in the reaction what will be the L G for the new urton Colim 01019 Sur 13 reaction anotong to eberbour C 101010 ono A anotong to slom I Ao lyloos of stevuryq to notabio srl nisrb hoqenst motibole srli lo bns erli is enothels gritgacos 3 Smundillupe leximer is msteye s to vyrons 99 ni sgnerb si ei tsW IS gniessmosh ylidgile A gniessbabylisong 8

5 Protein kinase A which stimulates glycogen degradation is activated directly by A glucagon B insulin C adrenergic receptors D cyclic AMP E epinephrine mugit negeib aid of 1919 01 8 noitesug hiano trogeniet nostels oril eworla svoda sugil gnlynsqmoose srit 6 In liver cells the inner mitochondrial membranes are about 5 X the area of the outer mitochondrial membranes and about 17 X that of the cell s plasma membrane What purpose must this serve 6 A It allows the liver cell to have fewer mitochondria B It allows for increased rate of glycolysis C It increases the surface for oxidative phosphoryation D It increases the surface for substrate level phosphorylation E It allows for increased rate of the citric acid cycle bre abixoil anotong bra OAS JIGAM anoubsle brs CHOA HOAM C anottools bra negy

TRUE FALSE Write T if the statement is true and F if the statement is false 4 Complex II in the electron transport chain participates in both the electron transport chain and the citric acid cycle 4

1 Energy released by the electron transport chain is used to pump H ions into which location A mitochondrial inner membrane B mitochondrial matrix C mitochondrial outer membrane D mitochondrial intermembrane space E cytosol 2 Which of the following types of reactions would decrease the entropy within a cell A hydrolysis B respiration C catabolism D digestion E dehydration reactions 1 2

Which evidence of past life contains the actual remains of an organism OA A cast fossil of an ancient mollusk OB An insect trapped in amber OC The petrified remains of a tree OD A fossilized footprint 43 8 1918

In the 1800s Charles Lyell emphasized that OA past geological events must be explained in terms of processes observable today OB all populations evolve through natural selection OC the human population will outgrow the available food supply COD Earth is a few thousand years old

Which statement about the members of a population that live long enough to reproduce is consistent with the theory of evolution by natural selection OA They tend to produce fewer offspring than others in the population OB They will perpetuate unfavorbable changes in the species OC They transmit characteristics acquired by use and disuse to their offspring D They are the ones that are best adapted to survive in their environment

Soru 18 If a person has memory B cells against a certain pathogen the person is O much less likely to develop the disease a second time O able to spread the disease to others through physical contact O likely to develop that disease

Memory B cells O Killer B cells O Helper T Cells are cells that communicate between a macrophage and a killer T cell O Remember T cells 1 p

Why do some people want less federal power over state decisions Each state has different needs and goals O Some people don t trust state government decisions Some people support federal needs over state needs O All of the choices

are ways citizens can become involved in local politics are illegal in many states O do not involve most citizens are started by the Congress

Question 6 Funding for the states comes from all of these sources except O taxes O bonds O printing money the federal government

Question 1 Points 1 Why should citizens want to be more involved in lawmaking O Laws and the government shape how we live Citizens should have an active voice in determining how their money is used An active citizenry is the best defense of a democracy O All of the choices

pose the correct answer The United States has a free enterprise economy government controlled economy O fixed economy mixed economy Complete lator

Question 6 Points 3 At one time Russia was known as the United Soviet Socialist Republic USSR What is a soviet A military leader in charge of a specific function of government A level of councils in charge of specific areas of the country O A governor A citizen and voter 9

Question 7 Points 1 Who began the world s first communist state which came in Russia Czar Nicholas II O Josef Stalin O Vladimir Lenin O Alexander Kerensky

A F X XW x X Y Based on the F shown above why does the F2 generation only have 1 white eyed offspring in 4 on average The trait is sex linked so it skips a generation B White is the mutant recessive trait C White is not expressed when there s a Y chromo some

What conclusions regarding the target protein can be made looking at the western below check all that apply Target Protein Loading Control Treatment 1 2 3 Treatment 1 results in no difference is expression level of the target protein compared to untreated controls Treatment 1 leads to higher expression of target protein compared to untreated control Treatment 2 shows a reduction in target protein expression compared to controls Treatment 2 effect of target protein expression cannot be determined in the current western Treatment 3 does not change the level of expression of target protein Treatment 3 leads to overexpression of target protein compared to untreated controls Treatment 3 effect on target protein cannot be determined accurately in the current western

We plan to measure the absorbance of different concentrations of chlorophyll that have been extracted from plant leaves using just acetone The standards and samples you are running contain chlorophyll and acetone Think about the blanks you ve prepared in class what should our blank for this assay contain Ochlorophyll BSA O chlorophyll and acetone acetone

A 100 M CUSO4 10 mM BA p JNK SAPK JNK SAPK B tubulin huRK13 O None of the above moRK13 1 vecRK13 49 kDa 49 kDa 1 62 kDa What was the purpose of including Beta tubulin bottom row in this experiment s immunoblot procedure Select all that apply Authors wanted to see if expression of Beta tubulin changed between the different transfected cell lines O Authors wanted to see if membrane integrity and copper changed Beta tubulin expression and if that change differed between the transfected cell lines O Beta tubulin was included as a loading control to verify that all wells were loaded with equal amounts of protein so that relative concentration of other proteins could be compared between samples

What term describes a community of interacting organisms and their environment Environment Population Ecosystem

Loss of biodiversity can be primarily attributed to which of the following Too much carbon dioxide in the air Habitat loss due to agriculture and urban development Smog Release of CFC s into the atmosphere

Amniocentesis is less invasive and can be performed earlier than chorionic villi sampling A True B False

10 points Match each property of water quality with its definition or description Hypoxia Dissolved oxygen Hypolimnion Eutrophic conditions Epilimnion Dead zone Oxygen deficient conditions that can cause a body of water to die Measure of how much oxygen is dissolved in the water Area depleted of dissolved oxygen that cannot support most life Water near the bottom of a lake Water near the surface of a lake Condition of oxygen concentrations below 2 mg L