Test Bank - Biochemistry-A Short Course, 4th Edition (Tymoczko, 2019), Chapter 1-41 | All Chapters

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Chapterhj2
1. Moleculeshjthathjarehjreadilyhjsolublehjinhjwaterhjarehjconsidered:
a. nonpolar.
b. polar.
c. zwitterionic.
d. volatile.
e. dielectric.
ANSWER:h j b

2. ThehjinteractionhjthathjishjdescribedhjbyhjCoulomb'shjlawhjishjcalled:
a. hydrophobic.
b. weak.
c. electrostatic.
d. hydrogen.
e. physical.
ANSWER:h j c

3. Whathjwouldhjbehjthehjsolubilityhjofhjahjsalthjinhjahjsolventhjwithhjahjlowhjdielectrichjconstant?
a. excellent
b. good
c. suitable
d. poor
e. exclusive
ANSWER:h j d

4. Hydrophobichjmoleculeshjarehjdrivenhjtogetherhjby:
a. entropy.
b. enthalpy.
c. vanhjderhjWaalshjinteractions.
d. affinity.
e. hydrogenhjbonds.
ANSWER:h j a

5. Thehjproteinhjthathjinteractshjwithhjbothhjwaterhjandhjthehjhydrophobichjregionshjofhjthehjmembranehjishjconsidered
:
a. polar.
b. nonpolar.
c. amphibious.
d. anabolic.
e. amphipathic.
ANSWER:h j e

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,6. Protonationhjofhjahjbasehjyieldshjits:




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Chapterhj2

a. conjugatehjmolecule.
b. conjugatehjbase.
c. conjugatehjacid.
d. ionizedhjderivative.
e. ionizedhjbase.
ANSWER:h j c

7. Anhjorganichjacidhjionizeshjtohjformhjahjconjugatehjbasehjand:
a. hydrogen.
b. water.
c. ahjhydroxylhjion.
d. ahjproton.
e. hydrogenhjperoxide.
ANSWER:h j d

8. Gastroesophagealhjrefluxhjdiseasehjishjahjcommonhjexamplehjofhjahjpathologicalhjchangehjin:
a. pKahj ofhjacetichjacid.
b. hydrogenhjbondshjinhjahjkeyhjdigestivehjenzyme.
c. proteinhjstructure.
d. waterhjcontenthjinhjcells.
e. pHhjlevel.
ANSWER:h j e

9. WhathjishjthehjpHhjofhjhumanhjblood?
a. 5.5
b. 7.0
c. 9.4
d. 6.4
e. 7.4
ANSWER:h j e

10. ChoosehjthehjfunctionalhjgrouphjthathjCANNOThjformhjahjhydrogenhjbondhjwithhjwater.
a. carbonylhjgroup
b. aminohjgroup
c. aromatichjring
d. alcoholhjgroup
e. sulfhydrylhjgroup
ANSWER:h j c

11. Whichhjcombinationhjcanhjassociatehjtohjformhjahjhydrogenhjbond?

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