Qhov Tseem Ceeb Qhov txawv - Polar vs Nonpolar Amino Acids
Amino acids tuaj yeem muab faib ua ob pawg raws li polarity li polar amino acids thiab nonpolar amino acids. Qhov sib txawv tseem ceeb ntawm polar thiab nonpolar amino acids yog tias polar amino acids muaj polarity whereas polarity tsis muaj nyob rau hauv nonpolar amino acids.
Amino acid yog cov organic tebchaw. Cov amino acid yog tsim los ntawm ib pawg amine (-NH2), pawg carboxyl (-COOH), pawg alkyl ua ib sab saw (-R) thiab hydrogen atom (-H.). Yog li ntawd, ib qho amino acid yog tsim los ntawm plaub yam tshuaj lom neeg; C, H, O thiab N. Amino acids yog lub tsev blocks ntawm cov proteins. Amino acids tuaj yeem muab faib ua ntau txoj hauv kev raws li cov qauv, kev sib txuas, thiab cov khoom xws li qhov tseem ceeb thiab tsis tseem ceeb, polar thiab nonpolar.
Polar Amino Acids yog dab tsi?
Polar amino acids yog cov amino acids uas muaj polarity. Polar amino acids tuaj yeem pom nyob rau hauv peb hom xws li nruab nrab amino acids, zoo them cov amino acids thiab tsis zoo them cov amino acids. Polar amino acids uas tsis muaj nqi tsis muaj nqi ntawm "R" pawg (sab saw). Cov amino acids no tuaj yeem pom koom nrog hauv hydrogen daim ntawv cog lus hauv cov protein molecules. Piv txwv li, amino acids rau pawg no, yog serine, threonine, tyrosine, cysteine, glutamine, thiab asparagine.
Daim duab 01: Kev faib tawm ntawm Amino Acids
Polar amino acids nrog cov nqi zoo muaj ntau pawg amino ntau dua li pawg carboxylic. Tom qab ntawd cov amino acid yuav yooj yim dua. Cov amino acids no muaj cov nqi zoo ntawm "R" pawg. Cov piv txwv rau pawg no suav nrog lysine, arginine thiab histidine.
Polar amino acids nrog tus nqi tsis zoo muaj ntau pawg carboxyl piv rau amine pawg. Tom qab ntawd cov amino acid ua ntau acidic. Qhov tsis zoo ntawm cov amino acids no tuaj yeem pom hauv pawg "R". Piv txwv ntawm pab pawg no suav nrog aspartic acid thiab glutamic acid.
Nonpolar Amino Acids yog dab tsi?
Nonpolar amino acids yog cov amino acids uas tsis muaj polarity. Qhov ntawd yog vim tias cov amino acids muaj cov lej sib npaug ntawm pawg carboxylic acid thiab pawg amine. Qhov no ua rau cov nonpolar amino acids muaj cov nqi nruab nrab. Lawv tsis them nyiaj rau pawg "R".
Nonpolar amino acids yog hydrophobic. Piv txwv ntawm nonpolar amino acids muaj xws li alanine, valine, leucine, isoleucine, phenylalanine, glycine, tryptophan, methionine thiab proline.
Qhov txawv ntawm Polar thiab Nonpolar Amino Acids yog dab tsi?
Polar vs Nonpolar Amino Acids |
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| Polar amino acids yog cov amino acids uas muaj polarity. | Nonpolar amino acids yog cov amino acids uas tsis muaj polarity. |
| polarity | |
| Polarity muaj nyob rau hauv polar amino acids. | Polarity tsis muaj nyob rau hauv nonpolar amino acids. |
| Hydrophobicity | |
| Polar amino acids yog hydrophilic. | Nonpolar amino acids yog hydrophobic. |
| Piv txwv | |
| Piv txwv ntawm polar amino acids suav nrog serine, lysine thiab aspartic acid. | Alanine, valine, leucine, isoleucine, phenylalanine, glycine, tryptophan, methionine, proline. |
Summary – Polar vs Nonpolar Amino Acids
Amino acids yog lub tsev tsim cov proteins. Muaj ntau ntau txoj kev sib txawv ntawm kev pab pawg amino acids raws li cov qauv thiab cov khoom. Polar amino acids thiab nonpolar amino acids yog categorized raws li polarity ntawm cov amino acid. Qhov txawv ntawm polar thiab nonpolar amino acids yog tias polar amino acids muaj polarity whereas polarity tsis muaj nyob rau hauv nonpolar amino acids.
