Dab tsi ntawm cov molecules tsim cov nucleic acids?
Dab tsi ntawm cov molecules tsim cov nucleic acids?

Video: Dab tsi ntawm cov molecules tsim cov nucleic acids?

Video: Dab tsi ntawm cov molecules tsim cov nucleic acids?
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Nucleic acids yog molecules ua nce ntawm nucleotides uas ncaj qha cellular kev ua ub no xws li cell division thiab protein synthesis. Txhua nucleotide ua nce ntawm ib tug pentose qab zib, ib tug nitrogenous puag, thiab ib pawg phosphate. Muaj ob hom ntawm nucleic acids : DNA thiab RNA.

Ib yam li ib tug yuav nug, hom molecule twg yog nucleic acid?

Nucleic acids yog biopolymers, los yog me me biomolecules, tseem ceeb rau txhua hom kev paub ntawm lub neej. Lub sij hawm nucleic acid yog lub npe tag nrho rau DNA thiab RNA . Lawv yog tsim los ntawm nucleotides, uas yog cov monomers ua los ntawm peb yam: ib tug 5-carbon qab zib, ib pawg phosphate thiab ib tug nitrogenous puag.

Ib yam li ntawd, 2 hom nucleic acids yog dab tsi? Ob yam tseem ceeb ntawm nucleic acids yog deoxyribonucleic acid (DNA ) thiab ribonucleic acid (RNA). DNA yog cov noob caj noob ces khoom pom nyob rau hauv tag nrho cov kab mob nyob, xws li los ntawm ib leeg-celled kab mob mus rau multicellular mammals. Nws muaj nyob rau hauv lub nucleus ntawm eukaryotes thiab nyob rau hauv chloroplasts thiab mitochondria.

Hauv qhov no, nucleic acids ua los ntawm dab tsi?

Tag nrho nucleic acids yog ua los ntawm tib lub tsev blocks (monomers). Chemists hu cov monomers "nucleotides." Cov tsib daim yog uracil, cytosine, thymine, adenine, thiab guanine. Txawm hais tias koj nyob hauv chav kawm txuj ci dab tsi, koj yuav hnov txog ATCG thaum saib DNA. Uracil tsuas yog pom hauv RNA.

Dab tsi yog cov piv txwv ntawm nucleic acids?

Ob piv txwv ntawm nucleic acids suav nrog deoxyribonucleic kua qaub (zoo dua lub npe hu ua DNA) thiab ribonucleic kua qaub (zoo dua hu ua RNA).

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