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BIO 311C Exam 3 – Dr. SATA Study Guide 2026–2027 | Complete Questions, Answers & Verified, Exams of Biology

The University of Texas at AustinBiology

Ace BIO 311C Exam 3 with this comprehensive 2026–2027 study guide featuring practice questions, detailed answers, verified solutions, and exam-focused review materials. Designed to help students master key biological concepts, reinforce course content, and improve test performance. Ideal for revision, self-assessment, exam preparation, and academic success.

Typology: Exams

2025/2026

Available from 07/01/2026

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BIO 311C Exam 3 – Dr. SATA Study Guide 2026–
2027 Complete Questions, Answers & Verified
Solutions
The vcellular vprocess vof vbreaking vdown vlarge vmolecules vinto vsmaller vones vis vdefined vas? v- v
vcorrect vanswer- vcatabolism
Which vof vthe vfollowing vis va vstatement vof vthe vfirst vlaw vof vthermodynamics? v- v vcorrect
vanswer- venergy vcannot vbe vcreated vor vdestroyed
Living vorganisms vincrease vin vcomplexity vas vthey vgrow, vresulting vin va vdecrease vin vthe ventropy
vof van vorganism. vHow vdoes vthis vrelate vto vthe vsecond vlaw vof vthermodynamics? v- v vcorrect
vanswer- vas va vconsequence vof vgrowing, vorganisms vcause va vgreater vincrease vin ventropy vin
vtheir venvironment vthan vthe vdecrease vin ventropy vassociated vwith vtheir vgrowth
Which vof vthe vfollowing vstatements vis vtrue vfor vall vexergonic vreactions? v- v vcorrect vanswer- vthe
vreaction vproceeds vwith va vnet vrelease vof vfree venergy
The v∆G vfor va vparticular venzyme-catalyzed vreaction vis v-20 vkcal/mol. vIf vthe vamount vof venzyme
vin vthe vreaction vis vdoubled, vwhat vwill vbe vthe v∆G vfor vthe vnew vreaction? v- v vcorrect vanswer- v-
20 vkcal/mol
Which vof vthe vfollowing vstatements vbest vdescribes vthe vinduced vfit vmodel vof venzyme vactivity?
v- v vcorrect vanswer- vthe vbinding vof vsubstrate vchanges vthe vconformation vof vthe vactive vsite vto
vbind vsubstrate vmore vtightly
Which vof vthe vfollowing vstatements vis vtrue vof venzymes? v- v vcorrect vanswer- venzymes vgenerally
vincrease vthe vrate vof vchemical vreactions vby vlowering vactivation venergy vbarriers
Zinc, van vessential vtrace velement vfor vmost vorganisms, vis vrequired vin vthe vactive vsite vof vthe
venzyme vcarboxypeptidase vin vorder vfor vthe venzyme vto vfunction vproperly. vThe vzinc vmost vlikely
vfunctions vas va(n) v- v vcorrect vanswer- vcofactor vnecessary vfor venzyme vactivity
An vaminoacyl-tRNA vsynthetase vis vthe venzyme vthat vcatalyzes vthe vattachment vof va vparticular
vamino vacid vto vits vcorresponding vtRNA. vThis vreaction vrequires venergy vfrom vATP. vThe venzyme
pf3
pf4
pf5

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Download BIO 311C Exam 3 – Dr. SATA Study Guide 2026–2027 | Complete Questions, Answers & Verified and more Exams Biology in PDF only on Docsity!

BIO 311C Exam 3 – Dr. SATA Study Guide 2026–

2027 Complete Questions, Answers & Verified

Solutions

The vcellular vprocess vof vbreaking vdown vlarge vmolecules vinto vsmaller vones vis vdefined vas? v- v vcorrect vanswer- vcatabolism Which vof vthe vfollowing vis va vstatement vof vthe vfirst vlaw vof vthermodynamics? v- v vcorrect vanswer- venergy vcannot vbe vcreated vor vdestroyed Living vorganisms vincrease vin vcomplexity vas vthey vgrow, vresulting vin va vdecrease vin vthe ventropy vof van vorganism. vHow vdoes vthis vrelate vto vthe vsecond vlaw vof vthermodynamics? v- v vcorrect vanswer- vas va vconsequence vof vgrowing, vorganisms vcause va vgreater vincrease vin ventropy vin vtheir venvironment vthan vthe vdecrease vin ventropy vassociated vwith vtheir vgrowth Which vof vthe vfollowing vstatements vis vtrue vfor vall vexergonic vreactions? v- v vcorrect vanswer- vthe vreaction vproceeds vwith va vnet vrelease vof vfree venergy The v∆G vfor va vparticular venzyme-catalyzed vreaction vis v- 20 vkcal/mol. vIf vthe vamount vof venzyme vin vthe vreaction vis vdoubled, vwhat vwill vbe vthe v∆G vfor vthe vnew vreaction? v- v vcorrect vanswer- v- 20 vkcal/mol Which vof vthe vfollowing vstatements vbest vdescribes vthe vinduced vfit vmodel vof venzyme vactivity? v- v vcorrect vanswer- vthe vbinding vof vsubstrate vchanges vthe vconformation vof vthe vactive vsite vto vbind vsubstrate vmore vtightly Which vof vthe vfollowing vstatements vis vtrue vof venzymes? v- v vcorrect vanswer- venzymes vgenerally vincrease vthe vrate vof vchemical vreactions vby vlowering vactivation venergy vbarriers Zinc, van vessential vtrace velement vfor vmost vorganisms, vis vrequired vin vthe vactive vsite vof vthe venzyme vcarboxypeptidase vin vorder vfor vthe venzyme vto vfunction vproperly. vThe vzinc vmost vlikely vfunctions vas va(n) v- v vcorrect vanswer- vcofactor vnecessary vfor venzyme vactivity An vaminoacyl-tRNA vsynthetase vis vthe venzyme vthat vcatalyzes vthe vattachment vof va vparticular vamino vacid vto vits vcorresponding vtRNA. vThis vreaction vrequires venergy vfrom vATP. vThe venzyme

vinitially vbinds vthe vamino vacid vand vATP, vbut vit vis vunable vto vbind vthe vtRNA vat vthis vpoint. vWhich vof vthe vfollowing vwould vbe va vlikely vnext vstep vin vthe vreaction vby vwhich vthe venzyme vultimately vbinds vthe vtRNA vand vattaches vthe vamino vacid? v- v vcorrect vanswer- vhydrolysis vof vATP vphosphorylates vthe vamino vacid, vwhich vresults vin va vconformational vchange vin vthe vactive vsite vthat vallows vthe vtRNA vto vbind The vmechanism vby vwhich vthe vend vproduct vof va vmetabolic vpathway vinhibits van venzyme vthat vcatalyzes van vearlier vstep vin vthe vpathway vis vmost vprecisely vdescribed vas v- v vcorrect vanswer- vfeedback vinhibition As va vresult vof van voxidation-reduction vreaction, vhow vis vthe voxidizing vagent vchanged? v- v vcorrect vanswer- vit vgains velectrons vand vgains vpotential venergy The vcomplete vreactions vof vcellular vrespiration vin vthe vpresence vof voxygen v(C6H12O6 v+ v 6 vO v→ v 6 vCO2 v+ v 6 vH2O v+ venergy) vresult vin vwhich vof vthe vfollowing? v- v vcorrect vanswer- voxidation vof vC6H12O6 vand vreduction vof vO Where vdoes vglycolysis voccur vin vanimal vcells? v- v vcorrect vanswer- vcytosol Which vchemical vprocess vgenerates vthe vATP vproduced vin vthe vcitric vacid vcycle? v- v vcorrect vanswer- vsubstrate-level vphosphorylation The voxygen vconsumed vduring vcellular vrespiration vis vinvolved vdirectly vin vwhich vprocess vor vevent? v- v vcorrect vanswer- vaccepting velectrons vat vthe vend vof vthe velectron vtransport vchain Which vof vthe vfollowing vindicates va vprimary vpath vby vwhich velectrons vtravel vdownhill venergetically vduring vaerobic vrespiration? v- v vcorrect vanswer- vglucose v→ vNADH v→ velectron vtransport vchain v→ voxygen In vaddition vto vATP, vwhat vare vthe vproducts vof vglycolysis? v- v vcorrect vanswer- vNADH vand vpyruvate Carbon vdioxide v(CO2) vis vreleased vduring vwhich vof vthe vfollowing vstages vof vcellular vrespiration? v- v vcorrect vanswer- voxidation vof vpyruvate vto vacetyl vCoA vand vthe vcitric vacid vcycle Which vof vthe vfollowing vmolecules vdonates velectrons vdirectly vto vthe velectron vtransport vchain vat vthe vhighest venergy vlevel? v- v vcorrect vanswer- vNADH

Which vof vthe vfollowing vstatements vbest vrepresents vthe vrelationships vbetween vthe vlight vreactions vand vthe vCalvin vcycle? v- v vcorrect vanswer- vthe vlight vreactions vprovide vATP vand vNADPH vto vthe vCalvin vcycle, vand vthe vCalvin vcycle vreturns vADP, v℗i, vand vNADP+ vto vthe vlight vreactions practice vexam vquestions v(MC) v- v vcorrect vanswer- v Q1) vWhich vof vthe vfollowing vis van vexample vof van vexergonic vreaction v(1st vexample) vthat vpowers vthe vsynthesis vof van vendergonic vreaction v(second vexample)? v- v vcorrect vanswer- vATP vHydrolysis v(exergonic) vand vphotosynthesis v(endergonic) Q2) vThe vsecond vlaw vof vthermodynamics vstates vthat vevery venergy vtransfer vand vtransformation vresults vin vincreased vrandomness vin vthe vuniverse. vLiving vorganisms vconsume venergy vand vrelease venergy. vThey vtransfer vand vtransform vvarious vforms vof venergy vbut vthey vstill vmaintain vstructure vand vorder. vDespite vthis, vliving vorganisms vdo vnot vbecome vmore vrandom vor vdisorganized. vThis vcan voccur vbecause v___________________. v- v vcorrect vanswer- vThe vrandomness vhappens vin vtheir vsurroundings Q3) vThe vreactions vshown vabove vare vtwo vtypes vof venzyme vreactions vthat voccur vin va vcell. vWhich vreaction vwill vrequire vATP vhydrolysis vto voccur? (Picture v 1 vis van vendergonic vreaction vand vpicture v 2 vis van vexergonic vreaction) v- v vcorrect vanswer- vEndergonic vreaction Q4) vConsider vthe vfollowing vgraph vand vconclude vthe vnature vof vthe venzyme. vPhosphofructokinase v(PFK) vis vmade vof v 4 vsubunits vand vis valso va vkey vregulatory venzyme vof vglycolysis. vShown vbelow vis vthe vresponse vof vPFK vto vthe vsubstrate vconcentration v(Fructose v 6 - phosphate). vWhat vis vthe vnature vof vthis venzyme vand vwhat vis vthe vrole vof vATP vin vthis vreaction? v- v vcorrect vanswer- vAllosteric venzyme vand vinhibitor Q5) vAny vaccidental vdrinking vof vmethanol vcan vmake vone vblind vor vcause vdeath. vA vperson vwho vdrank vmethanol vby vmistake vis vgiven vethanol vas van vantidote. vShown vbelow vis vthe venzyme vreaction vof vAlcohol vDehydrogenase v(ADH) von vthese vtwo vsubstrates. Ethanol v+ vADH v--> vAcetaldehyde Methanol v+ vADH v--> vFormaldehyde How vdoes vthis vtreatment vwork? v- v vcorrect vanswer- vADH vprefers vethanol vand vacetaldehyde vcan vbe vconverted vto va vnon-toxic vmolecule.

Q6) vWhich vof vthe vfollowing vmechanisms vare vused vto vregulate venzyme vactivity? vSelect vall vthat vapply. v- v vcorrect vanswer- v- vPhosphorylation

  • vFeedback vregulation
  • vActivators vthat vbind vreversibly vand vstimulate vthe venzyme vactivity vtemporarily
  • vActivators vthat vbind vreversibly vand vblock vthe venzyme vactivity vtemporarily Q7) vWhich voutput(s) vof vglycolysis venters vmitochondria vand vis/are vused vin vthe vacetyl vCoA vformation? v- v vcorrect vanswer- vPyruvate Q8) vSelect vall vthe vanswers vthat vdescribe vthe vprocess vof vrespiration. vWrong vanswer vchoices vhave vnegative vpoints. v- v vcorrect vanswer- v- vExergonic vprocess
  • vExothermic vprocess
  • vCatabolic vprocess Q9) vUnderstand vthe vgiven vequation vand vanswer vthe vfollowing vquestion. Pyruvate v+ vCoA v+ vNAD+ v--> vAcetyl vCoA v+ vCO2 v+ vNADH This vreaction vof vNAD+ vbecoming vNADH vis vconsidered vas va/an v____________, vand vthe vNAD+ vacts vas va/an v__________ vagent. v- v vcorrect vanswer- v1) vreduction, v2) voxidizing Q10) vKrebs vcycle vmakes vonly v 2 vATP vper vglucose. vMost vof vthe venergy vused vin vthe voxidation vof vacetyl vCoA vis vused vto v___________. v- v vcorrect vanswer- vreduce vNAD+ vand vFAD Q11) vCreatine vphosphate vis vused vas va vsupplement vduring vintense vworkouts. The vreaction vshown vbelow villustrates vwhat vhappens vin vthe vmuscle vcell vdeprived vof voxygen. This vreaction vis va/an v________ vand vit vis vcatalyzed vby v_______. Creatine vphosphate v+ vADP v--> vCreatine v+ vATP v- v vcorrect vanswer- vsubstrate vlevel vphosphorylation... vkinase Q12) vWhy vdoes vOxidative vPhosphorylation vmake vso vmuch vmore vATP v(32- 34 vATP/glucose) vcompared vto vSubstrate vLevel vPhosphorylation v(2 v+ v 2 vATP/glucose)? v- v vcorrect vanswer-

practice vexam vquestions v(FRQ) v- v vcorrect vanswer- v Q21) vBriefly vdescribe vtwo vexergonic vprocesses vin vthe vCalvin-Benson vcycle vthat vresults vin van vendergonic vprocess vhappen. vInclude vexamples vand vthree vchemicals vinvolved vin vthis. v- v vcorrect vanswer- v Q22) vThe vFigure vshown vbelow vis va vschematic vdescribing vdifferent vnon-competitive vinhibition vand vthe vcatalytic vreaction vmechanism vof v"11βHSD1 v", vand vthe vbinding vmodel vof vthe vcortisone-non-competitive vcompound vC. vBased von vthe vFigure vlegends vand vschematics, videntify vwhich vcompound vis vthe venzyme, vinhibitor, vcofactor, vsubstrate, vand vproduct vmolecule. v- v vcorrect vanswer- v Q23) vBriefly vdescribe vthe vreduction vand voxidation vreactions vthat voccur vin vrespiration. vFocus vonly von vthe velectron vcarriers/organic vcofactors, vand vinclude vtwo vprocesses v(one vfor vreduction vand vone vfor voxidation) vin vrespiration. vInclude vthe vmolecules vinvolved vin vthe vprocess vand vtheir vlocation vin vthe veukaryotic vcell. v- v vcorrect vanswer- v Q24) vCompare vand vcontrast voxidative vphosphorylation vand vphotophosphorylation vwith vtwo vsimilarities vand vtwo vdifferences. v- v vcorrect vanswer- v Q25) vBriefly vdescribe vhow vthe vstructure vof va vmitochondrion vis vso vimportant vfor vits vfunction. vInclude vthe vparts vand vprocesses vinside vthe vmitochondrion. v- v vcorrect vanswer- v Q26) vThe vFigure vshown vabove villustrates vthe veffect vof vleaf vtemperature von vthe vphotosynthetic vrate vof vC3, vC4, vand vCAM vplants. vBriefly vstate vthree vconclusions vthat vyou vcan vdraw vfrom vthis vFigure. v- v vcorrect vanswer- v Q27) vBriefly vdescribe vhow vlight vreactions vand vthe vCalvin-Benson vcycle vare vinterconnected. vDiscuss vtheir vinputs vand voutputs vand vshow vhow vthey vdepend von veach vother. v- v vcorrect vanswer- v Q28) vGiven vbelow vare vthe vresults vof va vbell vjar vexperiment vdone vby vJoseph vPriestly vin v1770s. vBriefly vinterpret vthe vresults vof vthis vexperiment vand vexplain vthe vreasoning vfrom vwhat vyou vhave vlearned. v- v vcorrect vanswer-