Video: Dab tsi polymer ua rau peb tus yam ntxwv?
2024 Tus sau: Miles Stephen | [email protected]. Kawg hloov kho: 2023-12-15 23:36
Qhov kawg natural polymers yog cov deoxyribonucleic acid ( DNA ) thiab ribonucleic acid (RNA) uas txhais lub neej. Kab laug sab txhob lo lo ntxhuav, plaub hau, thiab horn yog proteinpolymers. Cov hmoov txhuv nplej siab tuaj yeem ua ib qho polymer xws li cellulose inwood.
Yog li ntawd, dab tsi yog qhov tseem ceeb ntawm DNA?
DNA qauv DNA yog tsim los ntawm cov molecules hu ua nucleotides. Txhua nucleotide muaj ib pab pawg phosphate, ib pawg suab thaj thiab cov hauv paus anitrogen. Plaub hom nitrogen hauv paus yog adenine (A), thymine (T), guanine (G) thiab cytosine (C). Qhov kev txiav txim ntawm lub hauv paus no yog dab tsi txiav txim DNA cov cov lus qhia, los yog geneticcode.
Dab tsi yog tib neeg DNA ua los ntawm? DNA yog ua los ntawm chemical tsev blocks hu ua nucleotides. Cov tsev blocks no yog ua los ntawm peb feem: ib pawg phosphate, ib pawg suab thaj thiab ib ntawm plaub hom ntawm nitrogen hauv paus. Ua ib txoj hlua ntawm DNA , nucleotides txuas rau hauv cov saw hlau, nrog cov phosphate thiab qab zib pawg hloov pauv.
Hais txog qhov no, cov duab ntawm DNA molecule tau piav qhia li cas?
Cov DNA molecule yog zoo li tus ntaiv uas istwisted mus rau hauv ib co coiled configuration hu ua ob lub helix. Thenitrogen bases tsim cov rungs ntawm tus ntaiv thiab yog npaj inpairs, uas yog kev cob cog rua rau ib leeg los ntawm chemicalbonds.
Dab tsi yog qhov txuas ntxiv ntawm DNA?
ob qho tib si ntawm ob chains uas ua ib tug ob helix ntawm DNA , nrog cov haujlwm sib xws ntawm ob txoj hlua khi ua ke ntawm ib khub ntawm ntxiv hauv paus. ib seem ntawm onenucleic acid saws uas yog sib txuas mus rau lwm qhov los ntawm ib theem ntawm basepairs.
Pom zoo:
Peb tus yam ntxwv dav dav ntawm cov hlau yog dab tsi?
Peb yam ntxwv ntawm cov hlau yog lawv cov conductivity zoo, malleability, thiab ci iab tsos. Cov hlau yog cov zoo conductors ntawm tshav kub thiab hluav taws xob
Yam dab tsi cuam tshuam rau tus yam ntxwv ntawm cov pa roj?
Kub, siab, ntim thiab tus nqi ntawm cov pa roj cuam tshuam nws lub siab
Peb tus yam ntxwv ntawm lub neej yog dab tsi?
Cov yam ntxwv no yog lub koom haum ntawm tes, kev yug me nyuam, metabolism, homeostasis, heredity, teb rau stimuli, kev loj hlob thiab kev loj hlob, thiab adaptation los ntawm evolution
Dab tsi yog 6 tus yam ntxwv ntawm txhua yam muaj sia?
Tshawb xyuas nrog cov tub ntxhais kawm no rau qhov yooj yim pom cov yam ntxwv ntawm cov khoom muaj sia: kev txav mus los (uas yuav tshwm sim sab hauv, lossis txawm tias nyob hauv qib cellular) kev loj hlob thiab kev loj hlob. teb rau stimuli. kev yug me nyuam. siv zog. cellular qauv
Peb lub neej yog dab tsi thiab lawv cov yam ntxwv tshwj xeeb yog dab tsi?
Peb lub npe suav nrog: Archaea - cov npe qub tshaj plaws, cov kab mob qub. Cov kab mob - tag nrho lwm cov kab mob uas tsis suav nrog hauv Archaea domain. Eukarya - tag nrho cov kab mob uas muaj eukaryotic los yog muaj cov kab mob sib txuas thiab cov nuclei