Essential Cell Biology Chapter 11
Questions And Answers
What bare bthe badvantages bof bcompartmentation? b- bcorrect banswers✔✔allows bfor
bthe bcreation bof bordered bsystems band befficiency bof bprocesses
What bare bthe bdisadvantages bof bcompartmentation? b- bcorrect banswers✔✔obtaining
bnutrients, benergy, band binformation bis bharder bas bwell bas bdisposing bof bwaste band
binformation.
What bare bthe bprimary bfunctions bof bmembranes? b- bcorrect
banswers✔✔compartmentation, bscaffolding, bkeeping bion bimbalance, benergy
btransformation, bgas band bwater bexchange, bnutrient buptake, bcatalysis, bcellular
bcommunication, bbinding, band btransportation.
true bor bfalse: bthe bonly bmembrane bis bthat bwhich bsurrounds bthe bcell. b- bcorrect
banswers✔✔false. bAll bthe borganelles bare bmembrane bbound, bespecially bthe
bnucleus. bThese bare bcalled binter bcellular bmembranes.
What bis ba bmembrane bmade bof? b- bcorrect banswers✔✔a bhydrophobic bphospholipid
bbilayer
What bin bthe bmembrane bis bused bfor btransmission band bcommunication? b- bcorrect
banswers✔✔proteins bembedded bin bthe bmembrane.
Why bis bthe ba bhydrophobic blipid bbilayer bthe bideal bstructure bfor ba bmembrane? b-
bcorrect banswers✔✔helps bkeep bhydrophilic bmolecules bin bseparate bcompartments
What bis bthe bgeneral bstructure bof ba bphospholipid? b- bcorrect banswers✔✔functional
bgroup, bphosphate bgroup, band ba bglycerol bgroup bmake bup bthe bhead bwhich bis
battached bto btwo bhydrocarbon btails
is bthe bhead bgroup bof ba bphospholipid bhydrophobic bor bhydrophilic? b- bcorrect
banswers✔✔hydrophilic. bThe bhead bgroup bis bpolar, bwhich bis bideal bfor ba bstable
binteraction bwith ban baqueous benvironment.
, is bthe btail bgroup bof ba bphospholipid bhydrophobic bor bhydrophilic? b- bcorrect
banswers✔✔hydrophobic. bThe btails bare bmade bof blong bhydrocarbons bwhich bare bnon
bpolar band bdo bnot bhave ba bstable binteraction bwith baqueous benvironments.
What bis bthe badvantage bof bthe bstructure bof ba bphospholipid? b- bcorrect
banswers✔✔Because blipids bcontain bpolar band bnon bpolar bgroups, bthey beasily bform
bmembranes bin baqueous benvironments.
What bare btriacylglycerol bcommonly bknown bas? b- bcorrect banswers✔✔fats band boils
What bis bthe bcharge band bstructure bof btriacylglycerols? b- bcorrect
banswers✔✔triacylglycerols bare bnonpolar bmaking bthem bhydrophobic. ba bglycerol
bgroup bhas btwo bhydrocarbon btails bon bone bend band bone bhydrocarbon btail bon bthe
bother.
what bis bthe bcharge bon bcholesterol? b- bcorrect banswers✔✔they bare bpolar band btend
bto bbe bpartially bcharged.
What bare bthe btwo bclasses bof blipids? b- bcorrect banswers✔✔storage band bmembrane
blipids
What bis bthe bmain bstorage blipid? b- bcorrect banswers✔✔triacylglycerols
What bare bthe btwo bclasses bof bmembrane blipids? b- bcorrect
banswers✔✔phospholipids band bglycolipids
What bare bthe btwo bclasses bof bphospholipids? b- bcorrect
banswers✔✔glycerolphospholipids band bsphingolipids
What bis bthe bmain bclass bof bglycolipids? b- bcorrect banswers✔✔sphingolipids
What badditional bgroup bdo bglycolipids bcontain? b- bcorrect banswers✔✔a
bmonosaccharide bgroup bor boligosaccharide bgroup
What bis bthe bgeneral bstructure bof bglycerolphospholipids? b- bcorrect banswers✔✔two
bfatty bacid btails battached bto ba bglycerol bgroup bwhich bis battached bto ba bphosphate
bwhich bis battached bto ban balcohol
What bis bthe bgeneral bstructure bof ba bsphingolipids b- bcorrect banswers✔✔one bfatty
bacid btail battached bto ba bsphingosine battached bto ba bphosphate battached bto ba
bcholine bif bit bis ba bphospholipid b
OR
one bfatty bacid btail battached bto ba bsphingosine battached bto ba bmonosaccharide bor
boligosaccharide.
Questions And Answers
What bare bthe badvantages bof bcompartmentation? b- bcorrect banswers✔✔allows bfor
bthe bcreation bof bordered bsystems band befficiency bof bprocesses
What bare bthe bdisadvantages bof bcompartmentation? b- bcorrect banswers✔✔obtaining
bnutrients, benergy, band binformation bis bharder bas bwell bas bdisposing bof bwaste band
binformation.
What bare bthe bprimary bfunctions bof bmembranes? b- bcorrect
banswers✔✔compartmentation, bscaffolding, bkeeping bion bimbalance, benergy
btransformation, bgas band bwater bexchange, bnutrient buptake, bcatalysis, bcellular
bcommunication, bbinding, band btransportation.
true bor bfalse: bthe bonly bmembrane bis bthat bwhich bsurrounds bthe bcell. b- bcorrect
banswers✔✔false. bAll bthe borganelles bare bmembrane bbound, bespecially bthe
bnucleus. bThese bare bcalled binter bcellular bmembranes.
What bis ba bmembrane bmade bof? b- bcorrect banswers✔✔a bhydrophobic bphospholipid
bbilayer
What bin bthe bmembrane bis bused bfor btransmission band bcommunication? b- bcorrect
banswers✔✔proteins bembedded bin bthe bmembrane.
Why bis bthe ba bhydrophobic blipid bbilayer bthe bideal bstructure bfor ba bmembrane? b-
bcorrect banswers✔✔helps bkeep bhydrophilic bmolecules bin bseparate bcompartments
What bis bthe bgeneral bstructure bof ba bphospholipid? b- bcorrect banswers✔✔functional
bgroup, bphosphate bgroup, band ba bglycerol bgroup bmake bup bthe bhead bwhich bis
battached bto btwo bhydrocarbon btails
is bthe bhead bgroup bof ba bphospholipid bhydrophobic bor bhydrophilic? b- bcorrect
banswers✔✔hydrophilic. bThe bhead bgroup bis bpolar, bwhich bis bideal bfor ba bstable
binteraction bwith ban baqueous benvironment.
, is bthe btail bgroup bof ba bphospholipid bhydrophobic bor bhydrophilic? b- bcorrect
banswers✔✔hydrophobic. bThe btails bare bmade bof blong bhydrocarbons bwhich bare bnon
bpolar band bdo bnot bhave ba bstable binteraction bwith baqueous benvironments.
What bis bthe badvantage bof bthe bstructure bof ba bphospholipid? b- bcorrect
banswers✔✔Because blipids bcontain bpolar band bnon bpolar bgroups, bthey beasily bform
bmembranes bin baqueous benvironments.
What bare btriacylglycerol bcommonly bknown bas? b- bcorrect banswers✔✔fats band boils
What bis bthe bcharge band bstructure bof btriacylglycerols? b- bcorrect
banswers✔✔triacylglycerols bare bnonpolar bmaking bthem bhydrophobic. ba bglycerol
bgroup bhas btwo bhydrocarbon btails bon bone bend band bone bhydrocarbon btail bon bthe
bother.
what bis bthe bcharge bon bcholesterol? b- bcorrect banswers✔✔they bare bpolar band btend
bto bbe bpartially bcharged.
What bare bthe btwo bclasses bof blipids? b- bcorrect banswers✔✔storage band bmembrane
blipids
What bis bthe bmain bstorage blipid? b- bcorrect banswers✔✔triacylglycerols
What bare bthe btwo bclasses bof bmembrane blipids? b- bcorrect
banswers✔✔phospholipids band bglycolipids
What bare bthe btwo bclasses bof bphospholipids? b- bcorrect
banswers✔✔glycerolphospholipids band bsphingolipids
What bis bthe bmain bclass bof bglycolipids? b- bcorrect banswers✔✔sphingolipids
What badditional bgroup bdo bglycolipids bcontain? b- bcorrect banswers✔✔a
bmonosaccharide bgroup bor boligosaccharide bgroup
What bis bthe bgeneral bstructure bof bglycerolphospholipids? b- bcorrect banswers✔✔two
bfatty bacid btails battached bto ba bglycerol bgroup bwhich bis battached bto ba bphosphate
bwhich bis battached bto ban balcohol
What bis bthe bgeneral bstructure bof ba bsphingolipids b- bcorrect banswers✔✔one bfatty
bacid btail battached bto ba bsphingosine battached bto ba bphosphate battached bto ba
bcholine bif bit bis ba bphospholipid b
OR
one bfatty bacid btail battached bto ba bsphingosine battached bto ba bmonosaccharide bor
boligosaccharide.
