Qhov sib txawv tseem ceeb ntawm chlorophyll thiab carotenoids yog tias chlorophyll yog tsev neeg ntawm cov xim ntsuab xim feem ntau siv rau photosynthesis hauv cov kab mob photosynthetic thaum cov carotenoids yog ib pab pawg ntawm daj rau xim liab xim nrog rau carotenes thiab xanthophylls uas yog accessory pigments..
Cov xim yog cov yeeb yuj tshuaj lom neeg uas muaj kev cuam tshuam txog qee qhov wavelength ntawm pom lub teeb. Nws yog lub luag haujlwm rau muab cov yam ntxwv xim rau ntau yam khoom xws li paj, pleev xim, txiv hmab txiv ntoo, nplooj, corals, thiab lwm yam. Ib qho xim tshwj xeeb absorbs ib lub wavelength ntawm pom lub teeb thiab qhia txog qhov sib txawv wavelength uas pom ntawm peb qhov muag liab qab. Hauv cov kab mob photosynthetic, cov xim ntsuab xim hu ua chlorophylls ua lub luag haujlwm tseem ceeb hauv cov txheej txheem ntawm photosynthesis. Lwm pawg pigment hu ua carotenoids kuj tuaj yeem nqus lub teeb, tab sis lawv tsis tuaj yeem koom ncaj qha nrog txoj hauv kev photosynthetic. Lawv yog xim daj, txiv kab ntxwv thiab liab xim pigments.
YChlorophyll yog dab tsi?
Chlorophyll yog ib pawg ntawm cov xim ntsuab xim muaj nyob hauv cov nroj tsuag thiab lwm yam kab mob photosynthetic. Qhov tseeb, chlorophylls yog thawj cov xim ntawm cov kab mob photosynthetic nrog rau cov nroj tsuag thiab algae. Cov pigments no muaj peev xwm ntes lub zog ntawm lub hnub ci thiab tsim cov carbohydrates. Feem ntau, tsev neeg no muaj ntau hom chlorophyll pigments xws li chlorophyll a, b, c thiab d.
Ntawm ntau hom chlorophyll pigments, chlorophyll a thiab b yog cov xim ntau tshaj plaws uas feem ntau koom nrog hauv photosynthesis. Chlorophylls nqus daj thiab xiav xim wavelengths los ntawm electromagnetic hluav taws xob thiab muaj kev cuam tshuam ntsuab. Yog li ntawd, lawv pom peb ntawm cov xim uas yog ntsuab.
Daim duab 01: Chlorophylls
Structurally, chlorophyll molecule muaj ib lub nplhaib porphyrin uas muaj carbon, hydrogen, nitrogen thiab oxygen molecules nyob ib ncig ntawm lub hauv paus hlau ion; cov magnesium.
YCarotenoids yog dab tsi?
xim daj, txiv kab ntxwv thiab xim liab uas peb pom nyob txhua qhov chaw yog vim cov xim hu ua carotenoids. Lawv yog cov tshuaj sib xyaw ua ke uas cuam tshuam cov xim no. Tsis tas li ntawd, muaj ob lub ntsiab ntawm carotenoids; Piv txwv li, lawv yog carotene thiab xanthophylls. Carotene yog cov txiv kab ntxwv rau xim daj xim thaum xanthophylls yog xim daj xim. Cov xim ntawm carrots yog vim muaj beta carotene uas nws muaj. Ntawm qhov tod tes, cov xim ntawm cov txiv lws suav yog vim muaj cov lycopene uas yog lwm cov xim carotenoid.
Kev tsim qauv, carotenoids muaj ob lub voj me me rau cov pa roj carbon monoxide thiab cov saw hlau ntev. Yog li ntawd, lawv tsis soluble nyob rau hauv dej. Hloov chaw, lawv soluble hauv rog. Tsis tas li ntawd, hauv cov kab mob photosynthetic, carotenoids ua lub luag haujlwm ntawm cov khoom siv pigments. Txawm hais tias carotenoids tsis tuaj yeem hloov lub teeb nqus mus rau hauv txoj kev photosynthetic ncaj qha, lawv tuaj yeem hloov lawv lub teeb rau chlorophylls thiab pab cov photosynthesis. Yog li ntawd, lawv muaj nyob rau hauv chloroplasts thiab txawm nyob rau hauv cyanobacteria, ib yam nkaus.
Daim duab 02: Carotenoids
Ntxiv mus, carotenoids yog nrov raws li cov tshuaj antioxidants tseem ceeb thiab. Lawv muaj peev xwm deactivating dawb radicals; li no, muab cov txiaj ntsig kev noj qab haus huv. Tsis tas li ntawd, lawv muaj cov cuab yeej anticancer. Tsis tas li ntawd, qee cov carotenoids tuaj yeem hloov mus rau hauv vitamin A, uas yog qhov tseem ceeb rau kev pom kev zoo thiab kev loj hlob thiab kev loj hlob. Tsis tas li ntawd xwb, carotenoids yog nrov raws li cov tshuaj tiv thaiv kab mob uas tiv thaiv kev mob. Tsis tas li ntawd, carotenoids muab kev tiv thaiv kab mob zoo ib yam.
Dab tsi yog qhov zoo sib xws ntawm Chlorophyll thiab Carotenoids?
- Chlorophylls thiab Carotenoids yog cov xim.
- Lawv yog cog pigments.
- Lawv kuj muaj nyob hauv chloroplasts.
- Tsis tas li ntawd, lawv muaj nyob hauv cyanobacteria ib yam nkaus.
- Tsis tas li, ob hom xim tuaj yeem nqus lub teeb.
- Tsis tas li ntawd, ob leeg tuaj yeem nqus tau qee qhov wavelengths ntawm lub teeb thiab muaj kev cuam tshuam lwm yam wavelengths uas pom rau peb.
Qhov txawv ntawm Chlorophyll thiab Carotenoids yog dab tsi?
Chlorophylls yog cov xim ntsuab ntsuab xim thaum cov carotenoids yog daj rau xim liab xim cog xim. Yog li, qhov no yog qhov sib txawv tseem ceeb ntawm chlorophyll thiab carotenoids. Tsis tas li ntawd, muaj ntau hom chlorophylls; chlorophyll a, b, c thiab d thaum tsuas muaj ob hom carotenoids. Lawv yog cov carotene thiab xanthophylls. Li no, nws yog lwm qhov sib txawv ntawm chlorophyll thiab carotenoids.
Ntxiv mus, ob hom xim tuaj yeem nqus tau lub teeb. Tab sis, tsis zoo li carotenoids, tsuas yog chlorophylls tuaj yeem hloov lub teeb mus rau txoj kev photosynthetic ncaj qha. Tsis tas li ntawd, kuj tseem muaj qhov sib txawv ntawm cov chlorophyll thiab carotenoids. Chlorophylls muaj porphyrin rings nyob rau hauv lawv cov qauv thaum carotenoids muaj ob me me rau carbon rings thiab ib tug ntev carbon saw.
Summary – Chlorophyll vs Carotenoids
Chlorophylls thiab carotenoids yog ob hom cog pigments. Qhov sib txawv tseem ceeb ntawm chlorophyll thiab carotenoids yog cov xim uas muaj xim. Chlorophylls qhia txog ntsuab xim wavelength; li no, pom cov xim ntsuab thaum cov carotenoids qhia txog daj mus rau xim liab wavelengths; Yog li ntawd, pom nyob rau hauv daj, txiv kab ntxwv thiab liab nyob rau hauv cov xim. Tsis tas li ntawd, chlorophylls yog thawj cov xim photosynthetic uas cuam tshuam ncaj qha nrog photosynthesis thaum carotenoids yog cov khoom siv pigments uas hloov lub teeb absorbed rau chlorophylls vim tsis muaj peev xwm hloov ncaj qha mus rau photosynthetic txoj kev. Muaj ntau ntau hom chlorophylls uas yog chlorophyll a, b, c, thiab d thaum muaj ob hom carotenoids uas yog carotene thiab xanthophylls. Yog li, qhov no qhia txog qhov sib txawv ntawm chlorophyll thiab carotenoids.
