YProducer vs Consumer
Cov kab mob nyob hauv lub neej muaj kev cuam tshuam sab hauv hauv ib qho ecosystem. Lawv yog cov neeg tsim khoom, cov neeg siv khoom thiab cov decomposers.
Cov neeg tsim khoom tseem ceeb yog photoautotrophs. Cov neeg tsim khoom tseem ceeb suav nrog tag nrho cov nroj tsuag ntsuab, algae thiab cyanobacteria. Photoautotrophs siv lub teeb ua lub zog thiab inorganic carbon raws li qhov chaw ntawm carbon.
Photosynthesis yog txheej txheem metabolic uas lub hnub ci zog hloov mus rau hauv cov tshuaj siv hluav taws xob hauv cov organic tebchaw xws li carbohydrates siv carbon dioxide thiab dej ua cov khoom siv raw hauv qhov muaj chlorophyll. Hauv cov nroj tsuag siab dua, lub teeb tshwm sim tshwm sim hauv thylakoid membrane. Nyob rau hauv cov tshuaj tiv thaiv lub teeb, lub teeb lub zog absorbed los ntawm cov xim molecules yog pauv mus rau P 680 chlorophyll ib tug molecules nyob rau hauv cov tshuaj tiv thaiv chaw ntawm photosystem II.
Thaum lub zog xa mus rau P 680, nws cov electrons tau nce mus rau qib siab zog. Cov hluav taws xob no tau khaws los ntawm thawj cov khoom siv hluav taws xob txais cov molecules thiab thaum kawg mus rau photosystem kuv los ntawm cov cab kuj zoo li cytochrome. Thaum cov hluav taws xob raug xa mus los ntawm cov khoom siv hluav taws xob ntawm cov hluav taws xob qis, qee lub zog tso tawm yog siv rau hauv kev sib txuas ntawm ATP los ntawm ADP. Cov txheej txheem no hu ua photophosphorylation.
Tib lub sijhawm, cov dej molecules raug faib los ntawm lub teeb lub zog thiab cov txheej txheem no hu ua photolysis ntawm dej. Raws li qhov tshwm sim ntawm photolysis ntawm 4 dej molecules, 2 oxygen molecules, 4 protons thiab 4 electrons raug tsim. Cov hluav taws xob tsim los hloov cov hluav taws xob poob los ntawm chlorophyll ib lub molecule ntawm PS II. Oxygen yog hloov zuj zus raws li ib qho khoom siv. Ntawm PS kuv kuj, lub teeb lub zog yog nqus thaum P 700 chlorophyll ib qho molecules ntawm photosystem kuv zoo siab. Tom qab ntawd nws cov electrons tau nce mus rau qib siab zog thiab tau txais los ntawm cov thawj electron txais. Tsis tas li ntawd, los ntawm kev txais cov khoom siv thaum kawg hloov mus rau NADP molecules, uas txo qis rau NADPH2 siv cov protons tsim hauv photolysis.
Hauv PS I, lub tshuab hluav taws xob uas zoo siab yuav yog ib qho hluav taws xob los ntawm chlorophyll a lossis cov hluav taws xob los ntawm PS II. Cov tshuaj tiv thaiv tsaus ntuj tshwm sim hauv stroma ntawm chloroplast. Cov pa roj carbon dioxide tau txais los ntawm ribulose bisphosphate, uas yog C5 compound. Cov tshuaj tiv thaiv no yog catalyzed los ntawm ib qho enzyme hu ua RuBP carboxylase thiab tshwm sim hauv stroma. Ua ntej ib qho tsis ruaj tsis khov C6 compound yog tsim. Thaum kawg, 2 PGA molecules, uas yog C3 compounds, raug tsim.
PGA yog thawj cov khoom ruaj khov ntawm cov txheej txheem photosynthesis thiab nws tseem yog thawj cov carbohydrates. PGA raug txo rau PGAL. Tag nrho NADPH2 thiab ib feem ntawm ATP tsim thaum lub teeb pom kev zoo siv rau hauv cov tshuaj tiv thaiv no. Ib feem ntawm PGA tsim yog siv los ua ke ntau cov carbohydrates zoo li qabzib, sucrose, starch thiab lwm yam. Cov seem yog siv rau kev rov tsim dua ntawm RuBP los ntawm RuMP siv ATP seem. Cov tshuaj tiv thaiv tsaus ntuj tshwm sim nyob rau hauv lub voj voog, thiab qhov no yog hu ua Calvin voj voog. Tsis tas li ntawd, qee cov neeg tsim khoom tseem ceeb tuaj yeem ua C4 photosynthesis thiab CAM.
Cov neeg siv khoom
Cov neeg siv khoom muaj ntau hom. Cov neeg tau txais kev pabcuam thawj zaug pub ncaj qha rau thawj cov neeg tsim khoom thiab lawv hu ua herbivores. Cov neeg siv khoom thib ob pub rau thawj cov neeg siv khoom noj thiab cov khoom noj qib thib ob thiab lwm yam. Tsiaj txhu uas yog cov neeg siv khoom thib ob thiab qib siab tshaj yog cov tsiaj txhu. Tsiaj pub rau ob tus thawj tsim thiab lwm yam tsiaj yog omnivores.
Qhov txawv ntawm Tus Tsim Khoom thiab Cov Neeg Siv Khoom yog dab tsi?
• Cov neeg tsim khoom yog photoautotrophs, whereas cov neeg siv khoom yog chemoheterotrophs.
