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1. Allied American University BIO 130
Module 2
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BIO 130 MODULE 2 CHECK YOUR UNDERSTANDING
1. NADcarries__________ to the electrontransportsystem.
a. energy
b. oxygen
c. hydrogen-electrons
d. water
Hint:Section5.6
SLO3:Evaluate the anatomyand functionsof cellsandenzymes.
LO3P:Describe howthe proton pumpmechanismgeneratesATP.
1
2. Enzymesare most directlyinvolvedwith:
a. metabolicprocesses.
b. generative processes.
c. responsive processes.
d. control processes.
Hint:Section5.2
SLO3:Evaluate the anatomyand functionsof cellsand enzymes.
LO3M:Describe whyenzymesworkinsome situationsandnotinothers.
0

2. 3. The directintake of a liquid,suchasoil,intoacell iscalled:
a. osmosis.
b. phagocytosis.
c. induction.
d. pinocytosis.
Hint:Section4.7
SLO3:Evaluate the anatomyand functionsof cellsandenzymes.
LO3A:State the controlledmethodsbywhichmaterialscanbe transportedthrougha cell membrane.
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4. The difference betweenchromatinmaterial andchromosomesis:
a. theirstructure.
b. the kindsof atomsthat theycontain.
c. where youfindthem.
d. that one isa gas and the other isa liquid.
Hint:Section4.6
SLO2:Differentiate betweenprokaryoticandeukaryoticcells.
LO2A:Identifythe typical organellesassociatedwitheukaryoticcells.
1
5. ATP contains__________ high-energyphosphate bond(s).
a. one
b. two
c. three
d. four
Hint:Section5.6
SLO3:Evaluate the anatomyand functionsof cellsandenzymes.

3. LO3O:Explainthe importance of ATP.
1
6. The reasonwhy an enzyme fitsaspecificsubstrate isdue toits:
a. inhibitor.
b. three-dimensional shape.
c. acid side chain.
d. nuclearmembrane.
Hint:Section5.2
SLO3:Evaluate the anatomyand functionsof cellsandenzymes.
LO3L:Relate the shape of an enzyme toitsability tohelpinchemical reaction.
1
7. A cell thatis 98% water isplacedinpure water.Thiscell will:
a. shrink.
b. swell.
c. shrinkand thenswell.
d. remainthe same size.
Hint:Section4.7
SLO3:Evaluate the anatomyand functionsof cellsand enzymes.
LO3E:State whatenvironmental factorsare able toalterenzyme activity.
1
8. __________ is not a componentof a cellularmembrane.
a. Cholesterol
b. Nucleicacid
c. Phospholipid
d. Protein

4. Hint:Section4.3
SLO3:Evaluate the anatomy and functionsof cellsandenzymes.
LO3C:Classifythe componentsandmolecularpartsof a typical cell membrane.
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9. An outside source of energy(ATP) isrequiredfor:
a. osmosis.
b. diffusion.
c. active transport.
d. none of the choicesapply.
Hint:Section4.7
SLO3:Evaluate the anatomyand functionsof cellsandenzymes.
LO3O:Explainthe importance of ATP.
1
10. As the amountof substrate isincreasedinan enzyme-substrate reaction:
a. the amountof enzyme alsoincreases proportionally.
b. enzymesworkfaster.
c. the amount of product increases.
d. enzymesbecome denaturedfaster.
Hint:Section5.5
SLO3:Evaluate the anatomyand functionsof cellsandenzymes.
LO3H:Describe whathappenswhenanenzyme anda substrate combine.
0
11. Enzymaticcompetitionresultswhen:
a. several substratescancombine withone enzyme.
b. one enzyme canbringaboutthe formationof several substrates.

5. c. several typesof enzymescancombine withagivensubstrate.
d. one enzyme canproduce several typesof products.
Hint:Section5.5
SLO3:Evaluate the anatomyand functionsof cellsandenzymes.
LO3K:Describe enzymaticcompetition.
1
12. A cell thatis 98% water isplacedina solutioncontaining3% salt.Thiscell isnow __________
comparedto itssurroundings.
a. isotonic
b. hypertonic
c. hypotonic
d. hydrophilic
Hint:Section4.7
SLO3:Evaluate the anatomyand functionsof cellsandenzymes.
LO3E:State whatenvironmental factorsare able toalterenzyme activity.
0
13. Eukaryoticcellsare foundinthe group knownasthe:
a. fungi.
b. plants.
c. animals.
d. all of the choicesapply.
Hint:Section4.1 andSection4.8
SLO2:Differentiate betweenprokaryoticandeukaryoticcells.
LO2B:Examine the differencesinorganellesfoundinprokaryoticandeukaryoticcells.
1
14. Whena proteinisdenatured,the turnovernumberwill:

6. a. increase.
b. remainthe same.
c. decrease.
d. change withthe pH.
Hint:Section5.4
SLO3:Evaluate the anatomy and functionsof cellsandenzymes.
LO3E:State whatenvironmental factorsare able toalterenzyme activity.
0
15. The surface area of a cell isimportantbecause:
a. the surface area limitsthe amountof molecularexchangethatcantake place between the cell and
itssurroundings.
b. a small surface areaallowsthe cell toprotectitself fromforeignorganisms.
c. a large surface areamakesthe cell more fragile.
d. the surface area determinesthe geneticcapabilitiesof the cell.
Hint:Section4.2
SLO3:Evaluate the anatomyand functionsof cellsandenzymes.
LO3A:State the controlledmethodsbywhichmaterialscanbe transportedthrougha cell membrane.
1
16. NADis a(n):
a. enzyme.
b. electroncarrier.
c. product of photosynthesis.
d. oxygencarrier.
Hint:Section5.6
SLO3:Evaluate the anatomyand functionsof cellsandenzymes.
LO3P:Describe howthe protonpumpmechanismgeneratesATP.

7. 0
17. As the size of a cell increases:
a. the surface area increasesfasterthanthe volume.
b. the surface area andthe volume increaseatthe same rate.
c. the volume increasesfasterthanthe surface area.
d. there isnotrelationshipbetweensurface areaandvolume.
Hint:Section4.2
SLO3:Evaluate the anatomyand functionsof cells andenzymes.
LO3D:Explainwhycellsare small.
1
18. The numberof moleculeswithwhichanenzyme reactsisthe:
a. endproduct.
b. optimum.
c. substrate.
d. turnoverrate.
Hint:Section5.2 andSection5.4
SLO3:Evaluate the anatomyand functionsof cellsandenzymes.
LO3F:Describe towhichgroupof organicmoleculesenzymesbelong.
1
19. A methodof controllingthe synthesisrate of moleculesiscalled:
a. negative-feedbackcontrol.
b. tertiarycontrol.
c. enzyme-inhibitioncontrol.
d. depression-feedbackcontrol.
Hint:Section5.6

8. SLO3:Evaluate the anatomyand functionsof cellsandenzymes.
LO3E:State whatenvironmental factorsare able toalterenzyme activity.
1
20. The inducedfithypothesisstatesthat:
a. a single enzyme canadjustitsshape tofitwithseveral typesof substrate.
b. a substrate will adjustitsshape tofitthe shape of the enzyme.
c. an enzyme canadjustitself toa substrate as theycome together.
d. the enzyme andsubstrate have nosetshape until theyunite.
Hint:Section5.2
SLO3:Evaluate the anatomyand functionsof cellsandenzymes.
LO3H:Describe whathappenswhenanenzyme anda substrate combine.
1
http://www.justquestionanswer.com/viewanswer_detail/BIO-130-MODULE-2-CHECK-YOUR-
UNDERSTANDING-1-NAD-carries-23676
BIO 130 MODULE 2 HOMEWORK ASSIGNMENT
SLO2: Differentiate betweenprokaryoticandeukaryoticcells.
SLO3: Evaluate the anatomyand functionsof cellsandenzymes.
http://www.justquestionanswer.com/viewanswer_detail/BIO-130-MODULE-2-HOMEWORK-
ASSIGNMENT-SLO2-Differentiate-b-23678