Test Bank For Lehninger Principles of Biochemistry 8th Edition By David L. Nelson; Michael M. Cox | 9781319228002 | | Chapter 1-28 | All Chapters with Answers and Rationals

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1. Inl2al2bacteriall2cell,l2thel2DNAl2isl2inl2the:
a. celll2envelope.
b. celll2membrane.
c. nucleoid.
d. nucleus.
e. ribosomes.

ANSWER:l 2 c

2. Whichl2isl2thel2majorl2featurel2thatl2distinguishesl2eukaryotesl2froml2Bacterial2andl2Archaea?
a. DNA
b. photosyntheticl2capability
c. plasmal2membranes
d. ribosomes
e. thel2nucleus

ANSWER:l 2 e

3. Inl2eukaryotes,l2thel2nucleusl2isl2enclosedl2byl2al2doublel2membranel2calledl2the:
a. celll2membrane.
b. nuclearl2envelope.
c. nucleolus.
d. nucleoplasm.
e. nucleosome.

ANSWER:l 2 b

4. Whichl2isl2thel2rangel2ofl2typicall2diametersl2ofl2animall2andl2plantl2cells?
a. 0.1l2μmtol 2 10l2μm
b. 0.3l2μml2tol230l2μm
c. 5l2μml2tol2100l2μm
d. 10l2nml2tol2300l2nm
e. 1l2μml2tol2300l2μ

ml2ANSWER:l 2 c




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5. Whichl2groupl2ofl2single-celledl2microorganismsl2hasl2manyl2membersl2foundl2growingl2inl2extremel2environments?
a. bacteria
b. archaea
c. eukaryotes
d. heterotrophs
e. Nonel2ofl2thel2answersl2isl2correct.

ANSWER:l 2 b

6. Organismsl2thatl2derivel2energyl2froml2thel2oxidationl2ofl2chemicall2fuelsl2andl2requirel2organicl2compoundsl2asl2source
sl2ofl2carbonl2arel2classifiedl2as:
a. chemoautotrophs.
b. chemoheterotrophs.
c. lithotrophs.
d. photoautotrophs.
e. photoheterotrophs.

ANSWER:l 2 b

7. Whichl2isl2al2listl2ofl2organelles?
a. mitochondria,l2chromatin,l2endoplasmicl2reticulum
b. peroxisomes,l2lysosomes,l2plasmal2membrane
c. proteasomes,l2peroxisomes,l2lysosomes
d. mitochondria,l2endoplasmicl2reticulum,l2peroxisomes
e. Alll2ofl2thel2answersl2arel2correct.

ANSWER:l 2 d

8. Whichl2listl2hasl2thel2cellularl2componentsl2arrangedl2inl2orderl2ofl2increasingl2size?
a. nucleotidel2<l2DNAl2<l2nucleusl2<l2chromatin
b. nucleotidel2<l2DNAl2<l2chromatinl2<l2nucleus
c. nucleotidel2<l2chromatinl2<l2DNAl2<l2nucleus
d. DNAl2<l2nucleotidel2<l2nucleusl2<l2chromatin
e. DNAl2<l2chromatinl2<l2nucleusl2<l2nucleotide

ANSWER:l 2 b




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9. Inl2supramolecularl2complexes,l2macromoleculesl2arel2heldl2primarilyl2throughl2noncovalentl2interactions.l2Whichl2on
el2isl2NOTl2consideredl2al2noncovalentl2interaction?
a. carbon–carbonl2 bonds
b. hydrogenl2bonds
c. hydrophobicl2interactions
d. ionicl2interactions
e. vanl2derl2Waalsl2interactions

ANSWER:l 2 a

10. Whichl2elementl2isl2NOTl2amongl2thel2fourl2mostl2abundantl2inl2livingl2organisms?
a. carbon
b. hydrogen
c. nitrogen
d. oxygen
e. phosphorus

ANSWER:l 2 e

11. Thel2fourl2covalentl2bondsl2inl2methanel2(CH4)l2arel2arrangedl2aroundl2carbonl2tol2givel2whichl2geometry?
a. linear
b. tetrahedral
c. trigonall2bipyramidal
d. trigonall2planar
e. trigonall2pyramidal

ANSWER:l 2 b




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