Zoo Siab
Thaum hais txog kev sib xyaw, kev xav feem ntau yog ua rau tshuaj lom neeg sib txuasyog, at cov tshuaj uas yog tsim los ntawm ob lossis ntau yam tshuaj lom neeg uas ua ke hauv qee txoj hauv kev thiab kev faib ua feem.
Cov physico-tshuaj zog ntawm cov sib txuas tsis zoo ib yam li cov tshuaj lom neeg uas ua rau nws sib cais.
Muaj ntau txhiab tus piv txwv ntawm cov tshuaj sib txuas nyob ib puag ncig peb, ntuj thiab hluavtaws, txhua tus nrog nws tus yam ntxwv. Los ntawm cov lus ntsev lossis qab zib uas peb noj peb noj txhua hnub, lossis xab npum thiab tshuaj dawb uas peb siv los ntxuav, mus rau cov tshuaj uas peb noj txhawm rau txo peb qhov mob lossis kho los ntawm kev kis kab mob yog tsim los ntawm cov tshuaj sib txawv.
Kev faib tawm
Txij li muaj ntau yam tshuaj lom neeg sib xyaw, nws ib txwm sim npaj lawv hauv qee txoj kev. Feem ntau, lawv raug cais ua ob pawg loj: organic sib txuas thiab inorganic sib txuas:
- Organic: Lawv muaj tsawg kawg carbon thiab hydrogen hauv lawv cov molecule, ntawm lawv yog cov tshuaj tseem ceeb xws li hydrocarbons, classic roj; protein los yog rog.
- Tsis muaj zog: Lawv tsis muaj cov pa roj carbon ua lub hauv paus tseem ceeb, tab sis muab lwm cov ntsiab lus (xws li nitrogen, leej faj, hlau, oxygen lossis potassium), los tsim ntsev, oxides, hydroxidesthiab acids. Xijpeem cable qhia meej tias tseem muaj ntsev thiab organic acids.
Nyob ntawm hom kev cog lus uas tshwm sim ntawm cov ntsiab lus, koj tuaj yeem muaj cov ionic lossis covalent sib txuas:
- Ionic sib txuas: Lawv tau koom ua ke los ntawm cation thiab anion los ntawm kev nyiam los ntawm qhov sib txawv ntawm cov nqi.
- Covalent sib txuas: Nws cov khoom siv hluav taws xob tau sib koom.
Cov tshuaj lom neeg feem ntau yog sawv cev los ntawm lawv qauv qauv los yog ib nrab tsim. Lawv kuj tseem pab tau zoo hauv kev nkag siab tias cov tshuaj sib xyaw tau tsim. peb-dimensional qauv, tshwj xeeb tshaj yog tias lawv yog cov molecules nyuaj heev nrog cov quav tshwj xeeb, xws li cov protein.
Nws tuaj yeem pab koj:
- Piv txwv ntawm Cov Tshuaj Tshuaj
Piv txwv ntawm cov tshuaj sib txuas
Qee cov tshuaj lom neeg muaj npe hauv qab no:
- Methylene xiav
- Ferric tshuaj dawb
- Dej
- Methane
- Streptomycin
- Ethanol
- Glycerol
- Sodium sulfate hmoov
- Calcium nitrate
- Ntshav qab zib
- Cellobiose
- Xylitol
- Cov kua qaub
- Chlorophyll
- Urea
- tooj liab sulphate
- Nitric kua qaub
- Lactic acid
- Cov pa roj carbon monoxide
- Lactose
