BSC 2024 FINAL EXAM REVIEW
mk mk mk mk
QUESTIONS WITH VEFIFIED ANSWERS mk mk mk
cell mk- mkcorrect mkanswer-•The mk(1) is mk the mk basic m k unit mkof m k structure mk and mk function m k in mk an
mk organism.
RNA, mk protein mk- mkcorrect mk answer-
• Central mkdogma: mkDNA mk is mktranscribed mk into mk(2) then mktranslated mkinto mka mk(3) .
eukaryotic, mkprokaryotic mk- mkcorrect mkanswer-• mkA mk(4) cell mk has m k membrane-
enclosed mkorganelles mkwhile mka mk(5) cell mkis mksimpler, mkusually mksmaller, mkand mkdoes mknot
mkcontain mkany mkmembrane-enclosed mkorganelles.
matter mk - mkcorrect mkanswer-• mkAnything mkthat mktakes mk up mkspace mk and mk has mkmass mk is mk(6) .
element mk - mkcorrect mk answer-
• An mk(7) is mka mksubstance mkthat mkcannot mkbe mkbroken mkdown mkto mkother mksubstances mkby
mkchemical mkrea mkctions.
carbon, mkhydrogen, mkoxygen, mknitrogen mk-Dcorrect mkanswer-
• (8) , mk(9) , mk(10) , mkand mk(11) are mkthe mkelements
mktha mkt mkmake mkup mk96% mkof mkliving mkmatter.
isotopes mk - mkcorrect mk answer-
• (12) are mktwo m k atoms mk of mk an mkelement mk that m k differ mk in mkthe mk number mkof mk neutrons.
valance mk - mkcorrect m k answer-
• (13) electrons mkare mkthose mkin mkthe mkoutmost mkshell mkand mkare mkresponsible mkfor mkthe
mkchemical mkbeh mkavior mkof mkthe mkatom.
105 mk - mk correct mk answer-• mk The mk bond mk angle mkof mk a mk water mk molecule m k is mk (14)o.
cohesion, mk adhesion mk- mkcorrect m k answer-
• Hydrogen mkbonds mkhold mkwater mkmolecules mktogether mk in mka mkphenomenon mkcalled mk(15) , m k which m k is
, responsible mkfor mkthe mktransport mkof mkwater mkagainst mkgravity mkin mkplants; mk(16) , mkhowever, mkis mkan
mkattr mkaction mkbetween mkdifferent mksubstances, mkfor mkexample, mkbetween mkwater mkand mkplant mkcell
mkwalls.
nonpolar, mkpolar mk- mkcorrect mkanswer-
• In m k a m k (17) covalent mk bond, mkthe mkatoms mkshare mk electrons mkequally, mkwhile mkin mka mk(18)
covalent mkbond, mkthe mk atoms mk do mk not mk share mkelectrons mkequally.
10^-14 mk- mkcorrect mkanswer-• mkIn mkany mkaqueous mksolution mkat mk25°C mkthe mkproduct mkof mkH+
mk(hydronium mkions) mkand mkOH- mk(hydroxide mkions) mkis mkconstant mkand mkcan mkbe mkwritten: mk[H+][OH-] mk=
mk(19) .
hydrophilic, mkhydrophobic mk- mkcorrect mkanswer-
• A mk(20) substance mkhas mkan mkaffinity mkfor mkwater mkwhile mka mk(21) substance mkdoes
mkn mkot mkhave mkan mkaffinity mkfor mkwater.
CO2 mk - mk correct mk answer-
• All mkcarbon mkenters mkthe mkbiosphere mkas mk(22) gas, mkwhich mkis mkconverted mkto mksugar mkand
mkbiological mkmacromolecules.
tetrahedral, mk109.5 mk - mkcorrect mk answer-
• When mkcarbon mk bonds mkwith mk four mkmolecules mkof mkhydrogen, mk the mkresulting mkmolecule mkhas mk a mk (23)
_ m k geometry mk and mk bond mk angles mk of m k (24) o.
dehydration mksynthesis mk- mkcorrect mkanswer-
• A mk(25) occurs mkwhen mktwo mkmonomers mkbond mktogether mkthrough mkthe mkloss mkof mka
mkwater mkmolecul mke.
plants, mkglycogen mk- mkcorrect mk answer-
• Starch mkis mkthe mkstorage mkpolysaccharide mkof mk(26) while mk(27) is mka mkstorage
mkpolys mkaccharide mkin mkanimals.
alpha, mk beta mk - mk correct m k answer-
• Polymers mkwith mk(28) glucose mk are mk helical mk(as mk found mkin mkpotatoes) mkwhile mk polymers
mk with mk (29)
glucose mkare mkstraight mk (as mkfound mkin mkwood).
mk mk mk mk
QUESTIONS WITH VEFIFIED ANSWERS mk mk mk
cell mk- mkcorrect mkanswer-•The mk(1) is mk the mk basic m k unit mkof m k structure mk and mk function m k in mk an
mk organism.
RNA, mk protein mk- mkcorrect mk answer-
• Central mkdogma: mkDNA mk is mktranscribed mk into mk(2) then mktranslated mkinto mka mk(3) .
eukaryotic, mkprokaryotic mk- mkcorrect mkanswer-• mkA mk(4) cell mk has m k membrane-
enclosed mkorganelles mkwhile mka mk(5) cell mkis mksimpler, mkusually mksmaller, mkand mkdoes mknot
mkcontain mkany mkmembrane-enclosed mkorganelles.
matter mk - mkcorrect mkanswer-• mkAnything mkthat mktakes mk up mkspace mk and mk has mkmass mk is mk(6) .
element mk - mkcorrect mk answer-
• An mk(7) is mka mksubstance mkthat mkcannot mkbe mkbroken mkdown mkto mkother mksubstances mkby
mkchemical mkrea mkctions.
carbon, mkhydrogen, mkoxygen, mknitrogen mk-Dcorrect mkanswer-
• (8) , mk(9) , mk(10) , mkand mk(11) are mkthe mkelements
mktha mkt mkmake mkup mk96% mkof mkliving mkmatter.
isotopes mk - mkcorrect mk answer-
• (12) are mktwo m k atoms mk of mk an mkelement mk that m k differ mk in mkthe mk number mkof mk neutrons.
valance mk - mkcorrect m k answer-
• (13) electrons mkare mkthose mkin mkthe mkoutmost mkshell mkand mkare mkresponsible mkfor mkthe
mkchemical mkbeh mkavior mkof mkthe mkatom.
105 mk - mk correct mk answer-• mk The mk bond mk angle mkof mk a mk water mk molecule m k is mk (14)o.
cohesion, mk adhesion mk- mkcorrect m k answer-
• Hydrogen mkbonds mkhold mkwater mkmolecules mktogether mk in mka mkphenomenon mkcalled mk(15) , m k which m k is
, responsible mkfor mkthe mktransport mkof mkwater mkagainst mkgravity mkin mkplants; mk(16) , mkhowever, mkis mkan
mkattr mkaction mkbetween mkdifferent mksubstances, mkfor mkexample, mkbetween mkwater mkand mkplant mkcell
mkwalls.
nonpolar, mkpolar mk- mkcorrect mkanswer-
• In m k a m k (17) covalent mk bond, mkthe mkatoms mkshare mk electrons mkequally, mkwhile mkin mka mk(18)
covalent mkbond, mkthe mk atoms mk do mk not mk share mkelectrons mkequally.
10^-14 mk- mkcorrect mkanswer-• mkIn mkany mkaqueous mksolution mkat mk25°C mkthe mkproduct mkof mkH+
mk(hydronium mkions) mkand mkOH- mk(hydroxide mkions) mkis mkconstant mkand mkcan mkbe mkwritten: mk[H+][OH-] mk=
mk(19) .
hydrophilic, mkhydrophobic mk- mkcorrect mkanswer-
• A mk(20) substance mkhas mkan mkaffinity mkfor mkwater mkwhile mka mk(21) substance mkdoes
mkn mkot mkhave mkan mkaffinity mkfor mkwater.
CO2 mk - mk correct mk answer-
• All mkcarbon mkenters mkthe mkbiosphere mkas mk(22) gas, mkwhich mkis mkconverted mkto mksugar mkand
mkbiological mkmacromolecules.
tetrahedral, mk109.5 mk - mkcorrect mk answer-
• When mkcarbon mk bonds mkwith mk four mkmolecules mkof mkhydrogen, mk the mkresulting mkmolecule mkhas mk a mk (23)
_ m k geometry mk and mk bond mk angles mk of m k (24) o.
dehydration mksynthesis mk- mkcorrect mkanswer-
• A mk(25) occurs mkwhen mktwo mkmonomers mkbond mktogether mkthrough mkthe mkloss mkof mka
mkwater mkmolecul mke.
plants, mkglycogen mk- mkcorrect mk answer-
• Starch mkis mkthe mkstorage mkpolysaccharide mkof mk(26) while mk(27) is mka mkstorage
mkpolys mkaccharide mkin mkanimals.
alpha, mk beta mk - mk correct m k answer-
• Polymers mkwith mk(28) glucose mk are mk helical mk(as mk found mkin mkpotatoes) mkwhile mk polymers
mk with mk (29)
glucose mkare mkstraight mk (as mkfound mkin mkwood).
