Cov txheej txheem:
- Yuav ua li cas yog tshuaj lom neeg ntawm txhob lo lo ntxhuav thiab ntaub plaub?
- Yuav ua li cas yog cov tshuaj ntawm cov ntaub plaub Cas yog cov ntaub los ntawm yaj?
- Cov tshuaj muaj pes tsawg leeg ntawm paj rwb yog dab tsi?
- Puas yog paj rwb ua los ntawm cov hlwb?
Video: Dab tsi yog tshuaj lom neeg ntawm cov ntaub plaub?
2024 Tus sau: Fiona Howard | [email protected]. Kawg hloov kho: 2024-01-10 06:38
Nws yog protein fiber; nws muaj qee cov protein tshwj xeeb xws li keratin. Keratin yog cov tshuaj tseem ceeb ntawm cov ntaub plaub.
Yuav ua li cas yog tshuaj lom neeg ntawm txhob lo lo ntxhuav thiab ntaub plaub?
Silk yog natural protein fiber, muaj feem ntau ntawm fibroin thiab yog tsim los ntawm silkworm larvae. Silk (78% protein) muaj zog ntau dua li ntaub plaub txawm hais tias ob qho tib si yog cov proteins ua los ntawm cov amino acids chains.
Yuav ua li cas yog cov tshuaj ntawm cov ntaub plaub Cas yog cov ntaub los ntawm yaj?
Wool los ntawm yaj! Wool belongs rau ib pawg ntawm cov proteins(tshuaj!) hu ua keratins. Tsis zoo li paj rwb thiab feem ntau ntawm cov hluavtaws fibers, ntaub plaub tsis muaj homogenous qauv.
Cov tshuaj muaj pes tsawg leeg ntawm paj rwb yog dab tsi?
Tom qab txhuam thiab tshuaj dawb, paj rwb yog 99% cellulose. Cellulose yog ib tug macromolecule – ib tug polymer ua los ntawm ib tug ntev saw ntawm qabzib molecules txuas los ntawm C-1 mus rau C-4 oxygen txuas hniav nrog tshem tawm cov dej (glycoside bonds).
Puas yog paj rwb ua los ntawm cov hlwb?
paj rwb fibers yog ib leeg-celled extensions ntawm cov noob epidermis. Lawv tuaj yeem raug cais tawm hauv daim ntawv dawb huv raws li lawv tau dhau los ua qhov sib txawv nrog rau cov txheej txheem phab ntsa ntawm cov phab ntsa hauv lub sijhawm elongation thiab ze li ntawm cov cellulose synthesis ntshiab thaum lub sij hawm phab ntsa thickening.
Pom zoo:
Puas yog ib qho tseem ceeb ntawm cov tshuaj lom neeg lom neeg ntawm thiols?
Dab tsi ntawm cov hauv qab no yog qhov tseem ceeb ntawm cov tshuaj lom neeg lom neeg ntawm thiols? kev oxidation ntawm ob thiols los ua ib tug disulfide . Yam thiols yog dab tsi? 1 BIOLOGICAL THIOLS Thiols xa mus rau chav kawm ntawm cov organic sulfur derivatives uas yog tus cwj pwm los ntawm qhov muaj sulfhydryl residues (–SH) ntawm lawv qhov chaw nquagTshuaj, thiols yog mercaptans (C-SH) thiab biological mercaptans feem ntau hu ua biological thiols lossis biothio
Koj puas tuaj yeem siv tag nrho cov tshuaj ntxuav tes ntawm cov ntaub plaub?
Siv ib qho nruab nrab, tshuaj ntxuav me me, zoo dua yog ib qho uas yog Woolmark pom zoo, yuav tsum yog koj mus-rau thaum ntxuav tes lossis tshuab ntxhua khaub ncaws. Tsis txhob siv cov tshuaj detergents hnyav, "bio" detergents uas muaj cov enzymes, los yog cov tshuaj ntxuav tes uas muaj tshuaj dawb .
Dab tsi yog qhov sib txawv ntawm tus neeg tsis haum tshuaj thiab tus kws tshuaj tiv thaiv kab mob?
Tus kws tshuaj tiv thaiv kab mob kho cov teeb meem kev noj qab haus huv coj los ntawm kev tiv thaiv kab mob. Kuj tseem hu ua allergists, immunologists yog cov kws kho mob uas kuaj xyuas, kho, thiab ua haujlwm los tiv thaiv kev tiv thaiv kab mob .
Puas yog txhua plaub plaub plaub plaub plaub fab?
Ib daim duab plaub yog ib qho parallelogram nrog plaub lub kaum sab xis, yog li tag nrho cov duab plaub yog kuj parallelograms thiab quadrilaterals. Ntawm qhov tod tes, tsis yog txhua qhov quadrilaterals thiab parallelograms yog cov duab plaub.
Dab tsi yog qhov sib txawv ntawm cov dab neeg thiab dab neeg?
Feem ntau, lus dab neeg yog ib lo lus tshaj plaws uas hais txog kev sau cov dab neeg ntawm ib lub zej zog lossis kab lis kev cai. … Folktales tuaj yeem ua cov lus dab neeg, dab neeg, dab neeg lossis dab neeg . Dab tsi yog qhov sib txawv ntawm zaj dab neeg thiab dab neeg dab tsi?
