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

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, TestBank:LehningerPrinciplesofBiochemistry
,8th Edition, David L. Nelson Chapters 1-28. j8 j8 j8 j8 j8 j8




1. Inabacterialcell,theDNAisin the:
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A) cell envelope. j8




B) cell membrane. j8




C) nucleoid.
D) nucleus.
E) ribosomes.


2. Amajorchangeoccurringintheevolutionofeukaryotesfromprokaryoteswasthe
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developmentof:
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A) DNA.
B) photosynthetic capability. j8




C) plasmamembranes. j8




D) ribosomes.
E) thenucleus. j8




3. Ineukaryotes,the nucleus isenclosedb ya double membranecalledthe:
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A) cell membrane. j8




B) nuclear envelope. j8




C) nucleolus.
D) nucleoplasm.
E) nucleosome.


4. Thedimensions of livingcellsarelimited,on thelowerend bytheminimumnumberof
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biomolecules necessary for function, and on the upper end by the rate of diffusion of
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solutessuchasoxygen. Exceptforhighlyelongatedcells,theyusuallyhavelengthsand
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diameters in the range of:
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A) 0.1mto10 m. j8 j8 j8 j8




B) 0.3mto30 m. j8 j8 j8 j8




C) 0.3mto100 m. j8 j8 j8 j8




D) 1mto100 m. j8 j8 j8 j8




E) 1mto300 m. j8 j8 j8 j8




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,5. Whichgroupofsingle-celledmicroorganismshasmanymembersfoundgrowingin
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extreme environments?
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A) bacteria
B) archaea
C) eukaryotes
D) heterotrophs
E) Noneof theanswers is correct. j8 j8 j8 j8 j8




6. ThebacteriumE.colirequiressimpleorganicmoleculesforgrowthandenergy—itis
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thereforea:
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A) chemoautotroph.
B) chemoheterotroph.
C) lithotroph.
D) photoautotroph.
E) photoheterotroph.


7. Whichisalistof organelles?
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A) mitochondria,chromatin,endoplasmicreticulum j8 j8 j8




B) peroxisomes, lysosomes, plasma membrane j8 j8 j8




C) proteasomes, peroxisomes, lysosomes j8 j8




D) mitochondria, endoplasmic reticulum, peroxisomes j8 j8 j8




E) All of theanswers arecorrect.
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8. Whichlisthasthecellularcomponents arrangedin orderof INCREASING size?
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A) aminoacid<protein <mitochondrion< ribosome j8 j8 j8 j8 j8 j8 j8




B) aminoacid<protein <ribosome< mitochondrion j8 j8 j8 j8 j8 j8 j8




C) aminoacid<ribosome< protein< mitochondrion j8 j8 j8 j8 j8 j8 j8




D) protein<amino acid <mitochondrion< ribosome j8 j8 j8 j8 j8 j8 j8




E) protein<ribosome <mitochondrion <amino acid j8 j8 j8 j8 j8 j8 j8




9. Thethree-dimensional structureofmacromolecules is formed and maintained primarily
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through noncovalentinteractions. WhichoneofthefollowingisNOT considereda
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noncovalentinteraction?
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A) carbon-carbon bonds j8




B) hydrogen bonds j8




C) hydrophobic interactions j8




D) ionicinteractions j8




E) vanderWaalsinteractions
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, 10. WhichelementisNOT amongthe fourmost abundantin livingorganisms?
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A) carbon
B) hydrogen
C) nitrogen
D) oxygen
E) phosphorus


11. Thefourcovalentbondsinmethane(CH4)arearrangedaroundcarbonto givewhich
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geometry?
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A) linear
B) tetrahedral
C) trigonal bipyramidal j8




D) trigonal planar j8




E) trigonal pyramidal j8




12. Whatfunctionalgroups arepresent on thismolecule?
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A) etherand aldehyde
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B) hydroxyl and aldehyde j8 j8




C) hydroxyl and carboxylic acid j8 j8 j8




D) hydroxyl and ester j8 j8




E) hydroxyl and ketone j8 j8




13. Themacromoleculesthatserveinthestorageandtransmissionofgeneticinformation are:
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A) carbohydrates.
B) lipids.
C) membranes.
D) nucleic acids. j8




E) proteins.


14. Stereoisomersthatarenonsuperimposable mirrorimagesof eachotherare known as:
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A) anomers.
B) cis-trans isomers. j8




C) diastereoisomers.
D) enantiomers.
E) geometric isomers. j8




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