CHEM 210 Biochemistry Module 1 to 8 Exams' & Final Exam (2025 / 2026) Portage Learning Que, Exams of Biochemistry

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TABLE, 4 .OF,4.CONTENTS,4.:

• CHEM, 4 210 , 4 .Module, 4 1 , 4 .Exam
• CHEM, 4 210 , 4 .Module , 4 2 , 4 .Exam
• CHEM, 4 210 , 4 .Module , 4 3 , 4 .Exam
• CHEM, 4 210 , 4 .Module , 4 4 , 4 .Exam
• CHEM, 4 210 , 4 .Module , 4 5 , 4 .Exam
• CHEM, 4 210 , 4 .Module , 4 6 , 4 .Exam
• CHEM, 4 210 , 4 .Module , 4 7 , 4 .Exam
• CHEM, 4 210 , 4 .Module , 4 8 , 4 .Exam
• CHEM,4. 210 , 4 .Final,4.Exam

False

False

formingkiionickibonds

TrueorFalse:,4. Ina, 4 .eukaryotickicell,, 4 .theorganelles ,4.calledperoxisomesservethepurposeof ,4.digesting

,4.macromolecules.

Questionki 5

,4. 3 ,4./ ,4. 3 ,4.pts

TrueorFalse:,4. Carbon ,4. dioxide ,4. hasa ,4.linearmolecular ,4.shapeANDhas ,4.abondangleof ,4.109.5o.

Questionki 6

,4. 3 ,4./ ,4. 3 ,4.pts

Of, 4 .the, 4 .following, is, 4 .not, 4 .a, 4 .propertyof,4.carbon.

triplebondkiformation

possessingfivevalence, 4 .electrons

, 4. reactingkito, 4 .formlongkichains

, 4 .calledpolymers ,4.forming ,4.multiple ,4.bonds

Question, 4. 7

3 , 4 ./, 4. 3 , 4 .pts

Whichofthe, 4 .followingis, 4 .an , 4 .element, 4 .not, 4 .typically, 4 .found, 4 .in , 4 .living, 4 .organisms?

BR

He

, 4 .H

, 4 .S

, 4 .O

Question, 4. 8

3 , 4 ./, 4. 3 , 4 .pts

is, 4 .a, 4 .functional,4.group, 4 .found, 4 .in, 4 .carbohydrates.

Esters

,4.Thiol

,4.s

Carboxylicacids

Alcohols

Amines

Questionki 9

,4. 3 ,4./ ,4. 3 ,4.pts

Thefollowingfunctional, 4 .group, 4 .is, 4 .an, 4 .example, 4 .of.

Ketone

,4.Thiol

,4.Amide

,4.Benzene

,4.Aldehyd

,4.e

Question, 4. 10

0 , 4 ./, 4. 3 , 4 .pts

A isa, 4 .chemical, 4 .formula, 4 .that, 4 .does, 4 .NOTshow, 4 .the, 4 .C-Hand, 4 .C-C, 4 .bonds.

Question, 4. 13

3 , 4 ./, 4. 3 , 4 .pts

Scientists,4.refer,4.to askitheki“superglue”ofthechemistry. , 4..

C

Co

,4.N

a

,4.N

, 4 .O

Question, 4. 14

3 , 4 ./, 4. 3 , 4 .pts

Whatmolecule ,4.is, 4 .mostkiimportant ,4.forenergystorage , 4. in, 4 .cells?

Creatine

,4.mitochondria

,4.DNA

RNA

, 4 .ATP

Question, 4. 15

3 , 4 ./, 4. 3 , 4 .pts

What, 4 .would, 4 .bethe, 4 .approximate, 4 .size, 4 .of, 4 .a, 4 .human, 4 .cell?

a., 4. 12 μ, 4 .m

b. 1 , 4 .nm

c. 15 , 4 .nm

d. 0.2 , 4 .inch

e. 15 , 4. cm

. , 4 .a.

b.

c.

d.

e.

Question, 4. 16

3 , 4 ./, 4. 3 , 4 .pts

For, 4 .propane,,4.there carbonand hydrogen, 4 .atoms.

Nonekioftheabove

,4.Question, 4. 17

3 , 4 ./, 4. 3 , 4 .pts

Foranorganic, 4 .compound,, 4 .which structureiskithe,4.mostefficienttodraw? ,4..

,4.Line, 4 .bond

Condensed

,4.Lewisstructure

,4.Structuralformula

,4.Nonekiofthese

Question,4. 18

3 , 4 ./, 4. 3 , 4 .pts

Whenkiwriting an, 4 .organic, 4 .functional, 4 .group,, 4 .scientists, 4 .oftenwrite, 4 .an, 4 .“R”, 4 .as, 4 .partofthestructure.,4.What

,4.does,4.the ,4.R ,4.indicate?

Astring, 4 .of, 4 .carbon, 4 .atoms

A. 1

B. 25

C. 250

D. 25,

E. Bothkicandkid

,4.Question, 4. 22

0 , 4 ./, 4. 3 , 4 .pts

Whichofthe followingkiwouldkimost ,4.likelyhavea ,4.cell,4.wall? ,4.Correct

,4.Answer

Marigoldkiflowercells

,4.Deer, 4 .cells

Heart, 4 .cells

Humanredkibloodkicells, 4 .You

,4.Answered

Allofkithekiabove

,4.Question, 4. 23

0 , 4 ./, 4. 3 , 4 .pts

Eukaryoteshave, 4 .molecules, 4 .thatprovide, 4 .protective, 4 .structural.This,4.network, 4 .iscalled, 4 .the

Cellwall

,4.YoukiAnswered

Cytoplasm

,4.Cytosol

Correct

,4.Answer

Cytoskeleton

BothCellkiwallkiandkiCytoskeleton

Question,4. 24

3 , 4 ./, 4. 3 , 4 .pts

The, 4 .molecule,4.linked, 4 .to, 4 .the,4.medical,4.condition, 4 .of,4.gout,4.is.

Uric, 4 .acid

,4.Luciferin

,4.Luciferase

,4.Glucose

,4.Glycine

Question

,4. 3 ,4./ ,4. 3 ,4.pts

Abouthow, 4 .manydifferent , 4. elements,4.arefoundin, 4 .living ,4.organisms?

Question, 4. 26

3 , 4 ./, 4. 5 , 4 .pts

(Shortresponse), 4 .Explain, 4 .thecommon, 4 .similarityin, 4 .allprokaryoticand, 4 .eukaryotic, 4 .cells., 4 .Givea,4.brief

,4.explanation ,4.of ,4.the ,4.similarity.

YourAnswer:

Thecommon, 4 .similaritybetween, 4 .prokaryotic, 4 .andkieukaryotic, 4 .cells, 4 .aretheyboth, 4 .contain, 4 .cells,, 4 .a, 4 .cell ,4.membrane

,4.and ,4.ribosomes.

callthesekilarge,4.moleculespolymer., 4 .4.Lastly,, 4 .carboncan formcyclickistructures,,4.whichare ,4.also

,4.called ,4.ring ,4.compounds.

Giveonemorepropertyofcarbon.

,4.Question, 4. 29

4 , 4 ./, 4. 5 , 4 .pts

(Shortresponse)Howdoesorganicchemistrydifferfrominorganicchemistry?, 4 .Your

,4.Answer:

Organic, 4 .chemistryisfocuesonthe, 4 .chemical and physical propertiesof carbon andkiinorganic ,4.chemistry

, 4. focues ,4.on ,4.non ,4.organic ,4.compounds.

Organicchemistry ,4.isthe,4.studyof ,4.thecarbon-based,4.compounds.,4.Inorganicchemistry ,4.isthe ,4.study

, 4 .of ,4.all, 4 .otherelements,,4.but, 4 .carbon., 4 .There, 4 .is, 4 .no, 4 .need,4.to, 4 .have, 4 .separate, 4 .sub-disciples, 4 .for ,4.organic,4.and

,4.inorganic,4.chemistry,,4.but,4.for,4.historical,4.and,4.organizational,4.reasons,4.the,4.difference,4.exists.

Includethenon-carbonelementsin yourdefintionkiofinorganic.

, 4. Question, 4. 30

0 , 4 ./, 4. 5 , 4 .pts

(Shortresponse)kiBiochemistsstudythecommunicationkiwithin, 4 .and amongkiorganisms., 4 .According ,4.to ,4.the

,4.module,,4.what,4.are, 4 .two ,4.other, 4 .aspects,4.of,4.living,4.organisms,4.that,4.biochemists,4.study?

YourAnswer:

Bichemistsstudycarbs, 4 .and proteinskiin living organismkialongkiwith, 4 .chemistryandkibiology.Also ,4.luciferin

,4.i ,4.studies ,4.and ,4.luciferase.

Inthe, 4 .module,,4.biochemists, 4 .also study the structurekiand, 4 .function, 4 .of, 4 .biomolecules, 4 .andthe ,4.chemical

,4.reactions ,4.of ,4.organisms.

Be, 4 .morespecifichere., 4 .This, 4 .is,4.related, 4 .to, 4 .thehomework,4.problemsand,4.module, 4 .material.

EXAM

Question, 4. 1

3 , 4 ./, 4. 3 , 4 .pts

The, 4 .pH, 4 .of, 4 .asolution, 4 .of, 4 .0.0010, 4 .M, 4 .NaOH, 4 .is:

[Kw=[H+][OH-]=1.0x10-^14 ;[H+][0.0010], 4 .=1.0x10-^14 [H+]=1.0x10-^11 ;

,4.pH=-log[1.0x10-^11 ;]=11]

Question, 4. 2

3 , 4 ./, 4. 3 , 4 .pts

Waterisakiunique molecule.Which, 4 .ofthefollowingcontributestowater’s, 4 .uniqueplaceinkithe ,4.chemical

,4.world?

Thekigeometryof, 4 .themolecule

,4.Thepolarityofthe, 4 .O-H, 4 .bonds

Theabilityof, 4 .water, 4 .molecules, 4 .to, 4 .hydrogen, 4 .bond

,4.Thekibondangleofwater, 4 ..

Allofthekianswersarecorrect

Question,4. 3

0 , 4 ./, 4. 3 , 4 .pts

The, 4 .bent, 4 .shape,4.of, 4 .water,4.is, 4 .due, 4 .to.

The, 4 .dipole, 4 .arrows, 4 .in , 4 .awater, 4 .molecule

Thekielectronegativitydifferencebetweenhydrogen, 4 .andoxygen

,4.YouAnswered

Thekiunequal, 4 .electron sharingkibetween, 4 .hydrogenandoxygen

,4.CorrectkiAnswer

Thekiunshared, 4 .electron pairsonkithe, 4 .oxygenatom

,4.None ,4.of ,4.the ,4.answers ,4.are ,4.correct

CorrectAnswer

Question, 4. 6

3 , 4 ./, 4. 3 , 4 .pts

If, 4 .the, 4 .Ka, 4 .of, 4 .an, 4 .acid, 4 .is, 4 .5.63 , 4 .x , 4. 10 -^3 ,whatisthe, 4 .pKa?

[pKa=-log(5.63x10-^3 )=2.25] , 4. 5.

Question, 4. 7

3 , 4 ./, 4. 3 , 4 .pts

Listthe, 4 .acids, 4 .in, 4 .DECREASING, 4 .order, 4 .ofstrength, 4 .(strongest, 4 .toweakest):

Nitrousacid, 4 .(Ka, 4 .=4.0, 4 .x , 4. 10 -^4 );, 4 .acetickiacidki(Ka, 4 .=1.7, 4 .x , 4. 10 -^5 );, 4 .phosphoricacid, 4 .(Ka=7.3, 4 .x , 4. 10 -^3 )

Nitrousacid, ,4.acetic ,4.acid, ,4.phosphoric ,4.acid

,4.Aceticacid,kinitrousacid,phosphoricacid, 4 ..

,4.Phosphoric ,4.acid, ,4.nitrous ,4.acid, ,4.acetic ,4.acid

,4.Acetic,4.acid,,4.phosphoric,4.acid,,4.nitrous,4.acid

,4.None ,4.of ,4.the ,4.above

Question, 4. 8

0 , 4 ./, 4. 3 , 4 .pts

Elemental,4.iodine(I 2 ), 4 .isasolid, 4 .at,4.roomkitemperature.What,4.isthe,4.dominant,4.attractiveforcethat ,4.exists ,4.between

,4.I 2 ,4.molecules ,4.in ,4.the ,4.solid?

Correct, 4 .Answer

London, 4 .forces

Hydrogenkibonds

Halogenkiforces

,4.YoukiAnswered

Dipole-dipolekiforces

Covalent, 4 .bonds

,4.Question, 4. 9

3 , 4 ./, 4. 3 , 4 .pts

Whichoneof, 4 .the,4.followingmolecules,4.can,4.form, 4 .a, 4 .hydrogen,4.bond?

A. HBr

B. HCl

C. NH 3

D. CH 4

E. H 2

A.

B.

C.

D.

E.

Question, 4. 10

3 , 4 ./, 4. 3 , 4 .pts

Ahydrogen, 4 .bond , 4 .can, 4 .form, 4 .between, 4 .ahydrogen, 4 .atom, 4 .bonded, 4 .to, 4 .oxygen,, 4 .O–H,, 4 .and.

What, 4 .is, 4 .the, 4 .sign, 4 .(+, 4 .or, 4 .-), 4 .of, 4 .the, 4 .change, 4 .in ΔkiG,4.and ΔkiH?

A) ΔkiG , 4 .is, 4 .(+),4.and ΔkiH,4.is, 4 .(-)

B) ΔkiG , 4 .is,4.(-), 4 .and ΔkiH,4.is, 4 .(-)

C) ΔkiG , 4 .is,4.(-), 4 .and ΔkiH, 4 .is,4.(+)

D) ΔkiG , 4 .is, 4 .(+),4.and ΔkiH,4.is, 4 .(+)

E) Noneof,4.the, 4 .above

A

, 4 .B

, 4 .C

, 4 .D

, 4 .E

Question, 4. 13

3 , 4 ./, 4. 3 , 4 .pts

Whichofthe,4.followingis ,4.the,4.free-energychange ,4.of,4.a, 4 .reaction?

A) ΔkiG

B) ΔS

C) ΔH

D) ΔkiF

E) Alloftheabove ,4..

A

, 4 .B

, 4 .C

, 4 .D

, 4 .E

Question, 4. 14

3 , 4 ./, 4. 3 , 4 .pts

Whichof, 4 .the, 4 .following, 4 .is, 4 .the, 4 .change, 4 .in , 4 .entropyof, 4 .a, 4 .reaction?

A) ΔkiG

B) ΔE

C) ΔH

D) ΔkiF

E) Noneoftheabove

,4.A

B

C

, 4 .D