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

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, TestBank:LehningerPrinciplesofBiochemistry
,8th Edition, David L. Nelson Chapters 1-28.
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1. In a bacterial cell, the DNAis in the:
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A) cell envelope. k9




B) cell membrane. k9




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


2. Amajorchange occurringin theevolutionof eukaryotesfrom prokaryotes wasthe
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developmentof:
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A) DNA.
B) photosynthetic capability. k9




C) plasma membranes. k9




D) ribosomes.
E) the nucleus. k9




3. In eukaryotes,the nucleus is enclosedb ya double membranecalled the:
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A) cell membrane. k9




B) nuclear envelope. k9




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


4. Thedimensions of livingcells arelimited, on thelower end bytheminimum numberof
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biomolecules necessary for function, and on the upper end by the rate of diffusion of
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solutes such as oxygen. Exceptforhighlyelongated cells,theyusuallyhavelengths and
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diameters in the range of:
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A) 0.1 m to10 m. k9 k9 k9 k9




B) 0.3 m to30 m. k9 k9 k9 k9




C) 0.3 m to100 m. k9 k9 k9 k9




D) 1 m to100 m. k9 k9 k9 k9




E) 1 m to300 m. k9 k9 k9 k9




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,5. Whichgroupofsingle-celledmicroorganisms hasmanymembersfound growingin
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extreme environments?
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A) bacteria
B) archaea
C) eukaryotes
D) heterotrophs
E) Noneof theanswers is correct. k9 k9 k9 k9 k9




6. ThebacteriumE.colirequires simpleorganicmoleculesfor growth and energy—itis
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thereforea:
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A) chemoautotroph.
B) chemoheterotroph.
C) lithotroph.
D) photoautotroph.
E) photoheterotroph.


7. Which is a list of organelles?
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A) mitochondria,chromatin,endoplasmicreticulum k9 k9 k9




B) peroxisomes, lysosomes, plasma membrane k9 k9 k9




C) proteasomes, peroxisomes, lysosomes k9 k9




D) mitochondria, endoplasmic reticulum, peroxisomes k9 k9 k9




E) All of theanswers are correct.
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8. Whichlisthasthe cellularcomponents arranged in orderof INCREASING size?
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A) amino acid < protein <mitochondrion < ribosome
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B) aminoacid < protein < ribosome< mitochondrion
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C) amino acid < ribosome< protein < mitochondrion
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D) protein<amino acid <mitochondrion < ribosome k9 k9 k9 k9 k9 k9 k9




E) protein<ribosome <mitochondrion <amino acid k9 k9 k9 k9 k9 k9 k9




9. Thethree-dimensional structureof macromolecules is formed and maintained primarily
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through noncovalent interactions. Whichone of the following is NOT considered a
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noncovalentinteraction?
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A) carbon-carbon bonds k9




B) hydrogen bonds k9




C) hydrophobic interactions k9




D) ionic interactions k9




E) van derWaals interactions
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, 10. Whichelement is NOT amongthe four most abundant in livingorganisms?
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A) carbon
B) hydrogen
C) nitrogen
D) oxygen
E) phosphorus


11. Thefour covalentbonds in methane(CH4) are arrangedaround carbonto givewhich
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geometry?
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A) linear
B) tetrahedral
C) trigonal bipyramidal k9




D) trigonal planar k9




E) trigonal pyramidal k9




12. Whatfunctional groups arepresent on this molecule?
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A) etherand aldehyde
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B) hydroxyl and aldehyde k9 k9




C) hydroxyl and carboxylic acid k9 k9 k9




D) hydroxyl and ester k9 k9




E) hydroxyl and ketone k9 k9




13. Themacromoleculesthat servein thestorage and transmissionof geneticinformation are:
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A) carbohydrates.
B) lipids.
C) membranes.
D) nucleic acids. k9




E) proteins.


14. Stereoisomersthat arenonsuperimposable mirrorimages of each otherare known as:
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A) anomers.
B) cis-trans isomers. k9




C) diastereoisomers.
D) enantiomers.
E) geometric isomers. k9




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