Cov txheej txheem:
- Lub sijhawm ua pa ntawm tes tau hloov zuj zus lawm?
- Ua pa hloov pauv li cas?
- Kev ua pa ntawm tes txhawb nqa kev hloov pauv li cas?
- Puas ua pa hloov pauv ua ntej photosynthesis?
Video: Puas yog kev ua pa cellular hloov zuj zus?
2024 Tus sau: Fiona Howard | [email protected]. Kawg hloov kho: 2024-01-10 06:38
Photosynthesis hloov zuj zus los ntawm 3 billion xyoo dhau los thiab tso oxygen rau hauv qhov chaw. Cellular respiration hloov zuj zus tom qab ntawd kom siv cov pa oxygen.
Lub sijhawm ua pa ntawm tes tau hloov zuj zus lawm?
Lub hauv paus chiv keeb ntawm oxygenic photosynthesis nyob rau hauv Cyanobacteria coj mus rau qhov nce ntawm oxygen nyob rau hauv lub ntiaj teb ~ 2.3 billion xyoo dhau los, profoundly hloov txoj kev ntawm evolution los ntawm kev pab txhawb txoj kev loj hlob ntawm aerobic ua pa thiab complex multicellular life.
Ua pa hloov pauv li cas?
Ua pa, txheej txheem uas siv oxidant txhawm rau hloov lub zog ntawm cov metabolites mus rau lub pas dej phosphate, xav tias muaj ntau hom kev hloov pauv, los ntawm cov neeg siv cov oxidants uas tsis tshua muaj peev xwm, xws li sulfur., rau cov muaj zog ntau dua li TSIS MUAJ lossis nitric acid thiab cov pa oxygen.
Kev ua pa ntawm tes txhawb nqa kev hloov pauv li cas?
Kev ua pa ntawm tes yuav tau hloov zuj zus los ntawm kev hloov kho cov txheej txheem photosynthetic kom rho tawm lub zog los ntawm cov zaub movLwm cov prokaryotes muaj ntau haiv neeg hauv lawv cov metabolism; qee qhov xav tau oxygen, lwm tus tuaj yeem nyob tsis muaj nws. Cov kab mob uas tsis siv oxygen hauv lawv cov metabolism yog hu ua anaerobes.
Puas ua pa hloov pauv ua ntej photosynthesis?
Photosynthesis thiab ua pa, ob qho tib si siv electron ntws ua ke nrog phosphorylation, muaj ib qho hauv paus chiv keeb ('conversion hypothesis'), tab sis photosynthesis tuaj ua ntej Anaerobic (nitrate lossis sulphate) ua pa tsis tuaj yeem tau ua ntej photosynthesis li tsis muaj nitrate los yog sulfate muaj nyob rau hauv lub ntiaj teb thaum ntxov.
Pom zoo:
Puas yog kev lag luam thoob ntiaj teb ua rau kev txom nyem zuj zus?
Kev loj hlob ntawm kev lag luam yog qhov tseem ceeb los ntawm globalization tuaj yeem cuam tshuam rau kev txom nyemCov kws tshawb fawb tau pom yog tias, feem ntau, thaum lub teb chaws qhib kev lag luam, lawv nyiam loj hlob sai thiab kev ua neej nyob yuav nce.
Puas yog archaea hloov zuj zus ua ntej cov kab mob?
Raws li Archaea-thawj qhov kev xav, Archaea diverged los ntawm cov qia kab ntawm qhovntsej thiaj tsis mob uas tom qab ntawd tau ua rau cov poj koob yawm txwv ntawm cov kab mob thiab Eukarya Eukarya Hauv eukaryotes, ribosomes yog tam sim no in mitochondria (qee zaus hu ua mitoribosomes) thiab hauv plastids xws li chloroplasts (tseem hu ua plastoribosomes).
Puas yog lemurs hloov zuj zus los ntawm liab?
Evolutionary keeb kwm. Lemurs yog primates teej tug mus rau suborder Strepsirrhini. … Nyob rau hauv no hais txog, lemurs feem ntau tsis meej pem nrog cov poj koob yawm txwv primates; Txawm li cas los xij, lemurs tsis tau ua rau liab thiab apes, tab sis hloov zuj zus ntawm Madagascar .
Puas tib neeg hloov zuj zus los ntawm chimps vim li cas los yog vim li cas ho tsis?
Nws yog ib lo lus teb yooj yim: Tib neeg tsis tau hloov zuj zus los ntawm chimpanzees los yog lwm yam zoo kawg nkaus apes uas nyob niaj hnub no. Peb sib koom ib tug poj koob yawm txwv uas nyob kwv yees li 10 lab xyoo dhau los . Puas tib neeg hloov zuj zus los ntawm apes?
Puas myopia zuj zus zuj zus tuaj?
Myopia feem ntau tshwm sim thaum menyuam yaus. Feem ntau, tus mob theem tawm, tab sis nws tuaj yeem ua rau muaj hnub nyoog. Vim tias lub teeb los rau hauv koj lub qhov muag tsis tsom kom raug, cov duab zoo li tsis meej . Puas myopia puas tau tso tseg?
