2024 Tus sau: Elizabeth Oswald | [email protected]. Kawg hloov kho: 2024-01-13 00:07
Granum: (plural, grana) Ib feem ntawm cov thylakoid membrane hauv chloroplast. Grana ua haujlwm hauv lub teeb pom kev ntawm photosynthesis..
Yuav ua li cas hauv grana ntawm chloroplast?
Photosynthesis tshwm sim hauv ob kauj ruam. Hauv thawj kauj ruam, cov tshuaj tiv thaiv lub teeb, chlorophyll hauv grana absorbs lub teeb. Lub teeb lub zog raug xa mus los ntawm ntau cov enzymes hauv thylakoid membrane, uas ua rau muaj ob lub zog nqa khoom: ATP thiab NADPH.
Grana nyob rau hauv chloroplast nyob qhov twg?
Nyob ib ntus thylakoids daim ntawv nruj nruj cheeb tsam hu ua grana. Lub jellylike matrix hu ua stroma ncig lub thylakoids thiab grana. Qhov tshwj xeeb tshaj plaws ntawm chloroplasts yog lawv cov xim ntsuab. Qhov no yog vim ob hom xim chlorophyll, uas yog concentrated hauv grana.
Yuav ua li cas cov tshuaj muaj nyob rau hauv lub grana ntawm chloroplast?
Encyclopædia Britannica, Inc. Sab hauv cov qauv ntawm chloroplast. Sab hauv muaj cov hnab ntim ntawm cov khoom siv hluav taws xob (thylakoids) tsim los ntawm invagination thiab fusion ntawm daim nyias nyias. Thylakoids feem ntau yog teem rau hauv pawg (grana) thiab muaj cov xim photosynthetic (chlorophyll).
Dab tsi yog qhov ua haujlwm ntawm grana thiab stroma hauvchloroplast yog dab tsi?
Grana ntawm chloroplast muaj cov xim uas ua los ntawm chlorophyll-a, chlorophyll-b, carotine thiab xanthophyll thaum lub stroma muaj cov enzymes tsim nyog rau photosynthesis nrog rau DNA, RNA thiab cytochrome system..
Pom zoo:
Leej twg nyob rau ntawm daim npog ntawm cov neeg nyob hauv lub zos phem?
Tab sis Ethan Winters, White systems engineer lub hnub qub ntawm "Resident Evil 8: Village," yog tib lub cim tseem ceeb hauv koob uas nws lub cev peb nyob. Vim peb saib los ntawm nws ob lub qhov muag, thiab qhov kev ua si insistence ntawm obscuring nws lub ntsej muag, peb ntxiv txheeb xyuas nrog nws.
Nyob rau hauv angiosperms pollen yog tsim nyob rau hauv anthers ib feem ntawm?
Nyob rau hauv angiosperms, paj ntoos yog tsim los ntawm anthers ntawm the stamens hauv paj. Hauv gymnosperms, nws yog tsim nyob rau hauv microsporophylls ntawm microstrobili (txiv neej paj ntoos cones). Pollen muaj ib los yog ntau tshaj cov noob qoob loo thiab ib lub qe qe.
Yuav ua li cas txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau pom kev pom?
Txawm li cas los xij, corneal collagen cross-linking - cov txheej txheem qib siab tau pom zoo los ntawm US Food and Drug Administration (FDA) hauv xyoo 2016 - tuaj yeem txhim kho qhov pom kev hauv cov neeg mob txhua hnub nyoog. Corneal collagen cross-linking (CXL) tsis yog kho rau keratoconus, tab sis nws tuaj yeem pab tiv thaiv tus mob kom tsis txhob mob hnyav.
Leej twg detering nyob rau hauv tag nrho cov nyob ntsiag to nyob rau sab hnub poob pem hauv ntej?
Detering yog tus neeg ua liaj ua teb los ntawm Txhua Tus Neeg Tsis Txaus Siabntawm Sab Hnub Poob los ntawm Erich Maria Remarque. Nws muaj siab mos siab muag, tshwj xeeb tshaj yog thaum nws los txog rau nees. Nws muaj kev kub ntxhov loj heev thaum nws hnov cov nees quaj thiab txawm sim tua lawv kom kawg lawv txoj kev txom nyem.
Nyob rau hauv lub cev ntawm tus txiv neej aqueduct ntawm sylvius tshwm sim nyob rau hauv?
Lub ventricles muaj plaub qhov khoob, cov kua dej puv hauv lub hlwb. … Nws txuas nrog lub paj hlwb aqueduct lossis aqueduct ntawm Sylvius hauv qhov nruab nrab ntawm lub hlwbrau plaub lub ventricle hauv pons thiab medulla. Lub aqueduct ntawm Sylvius nyob qhov twg?
