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Test bank for biochemistry, 6th edition by Reginald Garrett | All chapters included | LATEST

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Test bank for biochemistry, 6th edition by Reginald Garrett | All chapters included | LATEST Test bank for biochemistry, 6th edition by Reginald Garrett | All chapters included | LATEST Test bank for biochemistry, 6th edition by Reginald Garrett | All chapters included | LATEST

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Institución
Biochemistry 6th_edition_reginald_garrett
Grado
Biochemistry 6th_edition_reginald_garrett

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,Chapter gJ01 gJ- gJThe gJFacts gJof gJLife: gJChemistry gJIs gJthe gJLogic gJof gJBiological
Phenomena
1. All gJare gJdistinctive gJproperties gJof gJliving gJsystems gJEXCEPT:
a. Living gJorganisms gJare gJrelatively gJsimple.
b. Biological gJstructures gJplay gJa gJrole gJin gJthe gJorganism's gJexistence.
c. The gJliving gJstate gJis gJcharacterized gJby gJthe gJflow gJof gJenergy gJthrough gJthe gJorganism.
d. Living gJorganisms gJare gJhighly gJorganized.
e. Living gJorganisms gJare gJactively gJengaged gJin gJenergy gJtransformation.
ANSWER: a

2. Even gJthough gJthe gJbuilding gJblocks gJhave gJfairly gJsimple gJstructures, gJmacromolecules gJare gJexquisitely gJorganized
gJin gJtheir gJintricate gJthree-dimensional gJarchitecture gJknown gJas:

a. configuration.
b. conformation.
c. sequence.
d. Lewis gJstructure.
e. structural gJmaturation.
ANSWER: b

3. All gJof gJthe gJfollowing gJactivities gJrequire gJthe gJpresence gJof gJATP gJor gJNADPH gJEXCEPT:
a. osmoregulation.
b. biosynthesis.
c. movement gJof gJmuscles.
d. light gJemission.
e. none, gJthey gJare gJall gJenergy-requiring gJactivities.
ANSWER: e

4. Which gJare gJthe gJfour gJmost gJcommon gJelements gJin gJthe gJhuman gJbody?
a. hydrogen, gJcalcium, gJoxygen gJand gJsodium
b. hydrogen, gJoxygen, gJiron gJand gJcarbon
c. hydrogen, gJoxygen, gJcarbon gJand gJnitrogen
d. oxygen, gJcarbon, gJiron gJand gJnitrogen
e. oxygen, gJsilicon, gJcalcium gJand gJnitrogen
ANSWER: c

5. What gJmakes gJcarbon gJsuch gJan gJabundant gJelement gJin gJbiomolecules?
a. It gJcan gJform gJup gJto gJfive gJbonds gJby gJsharing gJits gJelectrons.
b. It gJforms gJonly gJsingle gJbonds.
c. It gJprovides gJlow gJbond gJenergy.
d. It gJforms gJstable gJcovalent gJbonds gJby gJelectron gJpair gJsharing.
e. It gJdoes gJnot gJusually gJbond gJto gJother gJcarbons, gJallowing gJa gJmore gJdiverse gJcombination gJof gJelements.
ANSWER: d

6. The gJmajor gJprecursors gJfor gJthe gJformation gJof gJbiomolecules gJinclude gJall gJEXCEPT:
a. nitrate gJand gJdinitrogen.
b. water.
c. carbon gJdioxide.
Copyright gJCengage gJLearning. gJPowered gJby Page gJ1
Cognero.

,Chapter gJ01 gJ- gJThe gJFacts gJof gJLife: gJChemistry gJIs gJthe gJLogic gJof gJBiological
Phenomena
d. ammonium gJion.
e. none, gJall gJare gJmajor gJprecursors.
ANSWER: e

7. From gJthe gJmajor gJprecursors, gJthe gJcomplex gJbiomolecules gJare gJmade gJin gJwhich gJsequence?
a. metabolites, gJbuilding gJblocks, gJmacromolecules, gJsupramolecular gJcomplexes
b. macromolecules, gJbuilding gJblocks, gJmetabolites, gJsupramolecular gJcomplexes
c. building gJblocks, gJmacromolecules, gJsupramolecular gJcomplexes, gJmetabolites
d. metabolites, gJmacromolecules, gJbuilding gJblocks, gJsupramolecular gJcomplexes
e. metabolites, gJbuilding gJblocks, gJsupramolecular gJcomplexes, gJmacromolecules
ANSWER: a

8. The gJstructural gJintegrity gJof gJsupramolecular gJcomplexes gJ(assemblies) gJof gJmultiple gJcomponents gJare gJbonded gJto gJeach
gJother gJby gJall gJof gJthe gJfollowing gJforces gJEXCEPT:

a. covalent gJbonds
b. van gJder gJWaals gJforces
c. hydrogen gJbonds
d. hydrophobic gJinteractions
e. ionic gJinteractions
ANSWER: a

9. Organelles gJhave gJwhat gJthree gJattributes?
a. Only gJin gJprokaryotic gJcells, gJmembrane gJbound, gJhave gJa gJdedicated gJset gJof gJtasks.
b. Only gJin gJeukaryotic gJcells, gJmembrane gJbound, gJhave gJa gJdedicated gJset gJof gJtasks.
c. Only gJin gJeukaryotic gJcells, gJseldom gJmembrane gJbound, gJhave gJa gJdedicated gJset gJof gJtasks.
d. Only gJin gJprokaryotic gJcells, gJmembrane gJbound, gJmulti-functional.
e. In gJboth gJprokaryotic gJcells gJand gJeukaryotic gJcells, gJmembrane gJbound, gJhave gJa gJdedicated gJset gJof gJtasks.
ANSWER: b

10. Membrane gJstructures gJare gJmaintained gJprimarily gJby:
a. hydrophobic gJinteractions.
b. covalent gJbonds.
c. hydrogen gJbonds.
d. non-spontaneous gJassembly.
e. ionic gJinteractions.
ANSWER: a

11. All gJof gJthe gJfollowing gJare gJproperties gJof gJmembranes gJEXCEPT:
a. supramolecular gJassemblies.
b. define gJboundaries gJof gJcellular gJcomponents.
c. spontaneous gJassemblies gJresulting gJfrom gJhydrophobic gJinteractions.
d. identical gJprotein gJand gJlipid gJcomposition gJin gJthe gJmajor gJorganelles.
e. none, gJall gJare gJtrue.
ANSWER: d


Copyright gJCengage gJLearning. gJPowered gJby Page gJ2
Cognero.

, Chapter gJ01 gJ- gJThe gJFacts gJof gJLife: gJChemistry gJIs gJthe gJLogic gJof gJBiological
Phenomena
12. Which gJof gJthe gJfollowing gJproperly gJranks gJthe gJnon-covalent gJinteractions gJin gJorder gJof gJincreasing gJstrength?
a. ionic, gJhydrogen gJbond, gJvan gJder gJWaals
b. van gJder gJWaals, gJhydrogen gJbond, gJionic
c. van gJder gJWaals, gJionic, gJhydrogen gJbond
d. hydrogen gJbond, gJvan gJder gJWaals, gJionic
e. cannot gJbe gJdetermined gJsince gJionic gJinteractions gJand gJhydrogen gJbonds gJoften gJvary gJin gJstrength
ANSWER: e

13. Weak gJforces gJthat gJcreate gJconstantly gJforming gJand gJbreaking gJinteractions gJat gJphysiological gJtemperatures, gJbut
gJcumulatively gJimpart gJstability gJto gJbiological gJstructures gJgenerated gJby gJtheir gJcollective gJactivity gJinclude gJall

gJEXCEPT:

a. hydrogen gJbonds
b. van gJder gJWaals gJforces
c. covalent gJbonds
d. ionic gJinteractions
e. hydrophobic gJinteractions
ANSWER: c

14. Which gJof gJthe gJfollowing gJis gJa gJtrue gJstatement gJabout gJnon-covalent gJbonds?
a. They gJare gJall gJthe gJresult gJof gJelectron gJsharing.
b. Hydrogen gJbonds, gJionic gJbond gJand gJhydrophobic gJinteractions gJall gJcarry gJa gJdegree gJof gJspecificity gJwhile
gJvan gJder gJWaals gJinteractions gJare gJinduced.


c. All gJnoncovalent gJbonds gJare gJformed gJbetween gJoppositely gJcharged gJpolar gJfunctions.
d. Van gJder gJWaals gJinteractions gJare gJnot gJaffected gJby gJstructural gJcomplementarity, gJwhile gJhydrogen
gJbonds, gJionic gJbonds gJand gJhydrophobic gJinteraction gJare gJaffected gJby gJstructural gJcomplementarity.


e. Hydrogen, gJvan gJder gJWaals, gJand gJhydrophobic gJinteractions gJdo gJnot gJform gJlinear gJbonds.
ANSWER: b

15. Electrostatic gJforces
a. include gJionic gJinteractions gJbetween gJnegatively gJcharged gJcarboxyl gJgroups gJand gJpositively gJcharged gJamino
gJgroups.


b. average gJabout gJ2 gJkJ/mol gJin gJaqueous gJsolutions.
c. typically gJare gJdirectional gJlike gJhydrogen gJbonds.
d. require gJa gJprecise gJfit gJlike gJvan gJder gJWaals gJinteractions.
e. include gJionic, gJinduced gJdipole gJand gJpermanent gJdipole gJinteractions.
ANSWER: a

16. All gJare gJtrue gJabout gJhydrophobic gJinteractions gJEXCEPT:
a. Hydrophobic gJinteractions gJresult gJfrom gJthe gJstrong gJtendency gJof gJwater gJto gJexclude gJnonpolar gJgroups gJor
gJmolecules.


b. Hydrophobic gJinteractions gJresult gJbecause gJwater gJmolecules gJprefer gJthe gJstronger gJinteractions gJthat gJthey
gJshare gJwith gJone gJanother, gJcompared gJto gJtheir gJinteractions gJwith gJnonpolar gJmolecules.


c. Hydrophobic gJinteractions gJresult gJfrom gJhydrogen gJbonds gJbetween gJwater gJand gJthe gJhydrophobic gJmolecules.
d. The gJpreferential gJinteractions gJbetween gJwater gJmolecules gJ"exclude" gJhydrophobic gJsubstances gJfrom
gJaqueous gJsolution gJand gJdrive gJthe gJtendency gJof gJnonpolar gJmolecules gJto gJcluster gJtogether.


e. Hydrophobic gJinteractions gJresult gJin gJnonpolar gJregions gJof gJbiological gJmolecules gJbeing gJburied gJin gJthe
Copyright gJCengage gJLearning. gJPowered gJby Page gJ3
Cognero.

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