Video: Cov khoom siv organic yog dab tsi?
2024 Tus sau: Miles Stephen | [email protected]. Kawg hloov kho: 2023-12-15 23:36
Organic Khoom siv. Organic cov ntaub ntawv tau txhais nyob rau hauv niaj hnub chemistry raws li carbon-raws li cov tebchaw, Ameslikas muab los ntawm cov kab mob nyob tab sis tam sim no suav nrog lab-synthesized versions thiab. [1] Feem ntau yog kev sib txuas ntawm ob peb lub teeb pom kev zoo, tshwj xeeb tshaj yog hydrogen, carbon, nitrogen, thiab oxygen.
Ib yam li ntawd, tib neeg nug, dab tsi yog cov organic teeb meem ua los ntawm?
Nws yog teeb meem muaj li ntawm organic cov tebchaw uas tau los ntawm qhov seem ntawm cov kab mob xws li cov nroj tsuag thiab tsiaj txhu thiab lawv cov khoom pov tseg hauv ib puag ncig. Organic molecules tuaj yeem ua tau ua los ntawm cov tshuaj tiv thaiv uas tsis koom nrog lub neej.
Qhov thib ob, cov piv txwv ntawm cov khoom siv organic yog dab tsi? Piv txwv ntawm Organic Compounds los yog Molecules Molecules txuam nrog cov kab mob muaj sia organic . Cov no suav nrog nucleic acids, rog, qab zib, proteins, enzymes, thiab hydrocarbon fuels. Tag nrho organic molecules muaj carbon, yuav luag tag nrho cov muaj hydrogen, thiab ntau kuj muaj oxygen.
Tom qab ntawd, lo lus nug yog, dab tsi yog txhais los ntawm cov khoom siv organic?
Organic teeb meem (los yog cov khoom siv organic ) yog teeb meem uas tau los ntawm cov kab mob uas muaj sia nyob tsis ntev los no. Nws muaj peev xwm ua kom lwj, lossis yog cov khoom tawg; los yog muaj li ntawm organic tshuaj sib xyaw. Tsis muaj ib tug txhais ntawm organic teeb meem nkaus xwb. Cov organic teeb meem hauv av los ntawm cov nroj tsuag thiab tsiaj txhu.
Cov plaub hau puas yog cov khoom siv organic?
Cov tshuaj ua nyob rau hauv cov kab mob muaj sia organic molecules. Cov chav kawm tseem ceeb ntawm organic Cov tebchaw yog carbohydrates, rog, proteins, thiab nucleic acids. Piv txwv ntawm organic cov khoom muaj xws li: Cov plaub hau thiab ntiv tes (keratin protein)
Pom zoo:
Dab tsi yog cov khoom siv organic hauv av hu ua?
Nyob rau hauv cov av, organic teeb meem muaj cov nroj tsuag thiab tsiaj cov khoom uas yog nyob rau hauv tus txheej txheem ntawm decomposing. Thaum nws tag nrho decomposed nws yog humus. Qhov no humus yog qhov tseem ceeb rau cov qauv av vim tias nws tuav cov pob zeb hauv av ua ke hauv pawg
Cov khoom twg yog cov piv txwv ntawm cov khoom siv tshuaj xyuas txhua yam uas siv?
Piv txwv ntawm cov khoom siv tshuaj muaj xws li flammability, toxicity, acidity, reactivity (ntau hom), thiab kub ntawm combustion. Hlau, piv txwv li, ua ke nrog oxygen nyob rau hauv lub xub ntiag ntawm dej los ua xeb; chromium tsis oxidize (Daim duab 2)
Dab tsi yog qhov sib npaug siv los xam tag nrho cov khoom siv hluav taws xob siv?
Cov mis uas txuas lub zog thiab lub zog yog: Zog = Lub Zog x Sijhawm. Chav tsev ntawm lub zog yog joule, lub zog ntawm lub zog yog watt, thiab chav tsev ntawm lub sijhawm yog qhov thib ob
Yuav ua li cas cov khoom siv caj ces hauv txhua lub xov tooj tshiab tsim los ntawm kev faib tawm ntawm tes sib piv nrog cov khoom siv caj ces hauv lub xov tooj qub?
Mitosis tshwm sim nyob rau hauv ob lub nuclei uas zoo tib yam rau thawj nucleus. Yog li, ob lub hlwb tshiab tsim tom qab kev faib tawm ntawm tes muaj tib yam khoom siv caj ces. Thaum lub sij hawm mitosis, chromosomes condense los ntawm chromatin. Thaum saib nrog lub microscope, chromosomes pom nyob rau hauv lub nucleus
Dab tsi yog qhov txawv ntawm cov khoom siv organic thiab cov khoom siv organic?
Dab tsi yog qhov txawv ntawm cov khoom siv organic thiab organic teeb meem? Organic khoom yog txhua yam uas tseem muaj sia nyob thiab tam sim no nyob rau hauv lossis hauv av. Rau nws los ua cov organic teeb meem, nws yuav tsum tau decomposed rau hauv humus. Humus yog cov khoom siv organic uas tau hloov dua siab tshiab los ntawm cov kab mob mus rau lub xeev tsis muaj zog