Video: Qhov nqus spectrum cuam tshuam li cas rau photosynthesis?
2024 Tus sau: Miles Stephen | [email protected]. Kawg hloov kho: 2023-12-15 23:36
Pigments nqus lub teeb siv hauv photosynthesis . Hloov chaw, photosynthetic kab mob muaj lub teeb- nqus tau molecules hu ua pigments uas nqus cov wavelengths tshwj xeeb ntawm lub teeb pom kev, thaum xav txog lwm tus. Cov txheej txheem wavelengths nqus tau los ntawm ib tug pigment yog nws nqus spectrum.
Kuj nug, dab tsi yog qhov nqus spectrum hauv photosynthesis?
Nroj tsuag siv lawv cov xim ntsuab kom nqus lub teeb lub zog. Nroj tsuag muaj txiaj ntsig zoo ntawm nqus tau lub teeb liab thiab xiav. Ib nqus spectrum qhia tag nrho cov teeb feem ntau nqus tau los ntawm nplooj. Ib qho kev ua spectrum , lub caij no, qhia tag nrho cov teeb uas siv tau tiag tiag photosynthesis.
Ib yam li ntawd, vim li cas tus nqi ntawm photosynthesis kev ua spectrum tsis phim qhov nqus spectrum rau chlorophyll a? Cov kev ua spectrum ntawm photosynthesis tsis sib xws raws nraim qhov nqus spectrum ntawm ib qho photosynthetic pigment, suav nrog chlorophyll ib . Qhov no yog vim muaj ntau pigments, suav nrog chlorophyll ib , yog nqus tau sib txawv wavelength ntawm ib zaug. ? Qhov no yog vim li cas txhua cov xim muaj qhov tshwj xeeb nqus spectrum.
Ib yam li ntawd, nws raug nug, ua li cas electromagnetic spectrum cuam tshuam rau photosynthesis?
Photosynthesis nyob ntawm qhov nqus ntawm lub teeb los ntawm pigments nyob rau hauv nplooj ntawm cov nroj tsuag. Nws yog pov thawj los ntawm cov kev nqus thiab tso tawm cov phiaj xwm uas tsuas yog cov liab thiab xiav kawg ntawm qhov pom ntawm qhov electromagnetic spectrum yog siv los ntawm cov nroj tsuag hauv photosynthesis.
Dab tsi yog qhov txawv ntawm kev ua spectrum thiab nqus spectrum hauv photosynthesis?
Cov Kev ua spectrum rau photosynthesis qhia tau hais tias cov wavelengths twg yog siv los ntawm cov nroj tsuag los tsim lub zog, thaum lub nqus spectrum qhia tias qhov twg wavelengths ntau tshaj nqus tau los ntawm ib tug tshwj xeeb molecule. Tab sis lwm cov molecules ua si ib feem zoo li, uas yog vim li cas muaj qee qhov qhov sib txawv ntawm qhov nqus thiab action spectra.
Pom zoo:
Lub kaum sab xis ntawm qhov cuam tshuam cuam tshuam li cas rau cov tsos ntawm cov ntshav?
Thaum cov ntshav raug cuam tshuam, cov tee dej tau tawg los ntawm huab cua. Thaum cov tee dej no tawm tsam ib qho chaw, cov duab ntawm cov stain hloov nyob ntawm lub kaum sab xis ntawm qhov cuam tshuam, kev tshaj tawm, kev ncua deb thiab hom ntog cuam tshuam. Raws li lub kaum sab xis ntawm qhov cuam tshuam hloov, yog li qhov tshwm sim ntawm qhov tshwm sim stain
Dab tsi yog qhov sib txawv ntawm cov rog yuav cuam tshuam rau kev sib cuam tshuam ntawm cov dej molecules?
1 Teb. Qhov tseeb, dej muaj tag nrho peb hom kev sib xyaw ua ke, nrog qhov muaj zog tshaj plaws yog hydrogen bonding. Txhua yam muaj London dispersion yuam cov kev sib cuam tshuam tsis muaj zog yog ib ntus dipoles uas tsim los ntawm kev hloov ntawm electrons nyob rau hauv ib lub molecule
Qhov nqus thiab tso tawm ntawm lub zog cuam tshuam li cas rau qhov kub thiab txias thaum lub sij hawm muaj tshuaj tiv thaiv?
Nyob rau hauv endothermic cov tshuaj tiv thaiv cov enthalpy ntawm cov khoom yog ntau dua cov enthalpy ntawm cov reactants. Vim tias cov tshuaj tiv thaiv tso tawm lossis nqus lub zog, lawv cuam tshuam rau qhov kub ntawm lawv ib puag ncig. Exothermic cov tshuaj tiv thaiv cua sov ua rau lawv ib puag ncig thaum cov tshuaj tiv thaiv endothermic txias rau lawv
Dab tsi yog qhov txawv ntawm kev cuam tshuam kev cuam tshuam thiab kev cuam tshuam cuam tshuam?
Paub qhov txawv ntawm kev cuam tshuam kev tsim kho thiab kev cuam tshuam puas tsuaj. Kev tsim kev cuam tshuam tshwm sim thaum lub crests ntawm ob nthwv dej ntxiv ua ke. Kev cuam tshuam kev puas tsuaj tshwm sim thaum lub crest ntawm ib yoj raug txo los ntawm lub trough ntawm lwm tus
Vim li cas qhov absorption spectrum rau chlorophyll a thiab qhov kev ua spectrum rau photosynthesis txawv?
Ib qho kev nqus spectrum qhia tag nrho cov xim ntawm lub teeb absorbed los ntawm cov nroj tsuag. Ib qho kev ua spectrum qhia tag nrho cov xim ntawm lub teeb uas siv hauv photosynthesis. Chlorophylls yog cov xim ntsuab uas nqus liab thiab xiav thiab koom nrog hauv photosynthesis ncaj qha