Qhov Tseem Ceeb - Ribose vs Ribulose
Carbohydrates yog lub ntsiab macronutrients muaj nyob hauv lub cev. Lawv muaj xws li carbon (C), hydrogen (H) thiab oxygen (O). Carbohydrates tuaj yeem yog monosaccharides, disaccharides, thiab polysaccharides. Qhov sib piv ntawm H: O yog 2: 1. Qhov yooj yim units ntawm carbohydrates yog monosaccharides. Lawv hu ua cov suab thaj yooj yim. Txij li thaum lawv raug suav hais tias yog cov sib txuas yooj yim tshaj plaws, lawv tsis tuaj yeem raug hydrolyzed ntxiv. Monosaccharides ua rau muaj ntau yam sib txuas xws li disaccharides thiab polysaccharides. Ribose thiab ribulose raug suav hais tias yog monosaccharides thiab yog pentose qab zib uas muaj 5 carbon atoms. Ribose feem ntau hu ua aldopentose qab zib vim muaj cov aldehyde (-CHO) ua haujlwm pab pawg. Ribulose muaj ketone (-C=O) pab pawg ua haujlwm thiab raug xa mus ua ketopentose qab zib. Qhov no yog qhov txawv ntawm ribose thiab ribulose.
Ribose yog dab tsi?
Ribose yog pentose qab zib nrog cov mis molecular C5H10O5. Nws yog feem ntau hu ua aldopentose qab zib vim muaj cov pab pawg ua haujlwm aldehyde. Cov pa roj carbon atoms hauv cov qauv ribose raug suav los ntawm C1 txog C5; Cov lej no pib los ntawm cov pa roj carbon atom txuas rau pawg ua haujlwm OH. Deoxyribose thiab ribose qab zib muaj kev sib raug zoo. Lawv qhov sib txawv feem ntau yog los ntawm pawg OH; OH pawg txuas nrog C2 hauv deoxyribose; hydrogen atom txuas nrog C2 hauv ribose.
Daim duab 01: Ribose
Ribose yog cov suab thaj tseem ceeb uas koom nrog hauv kev sib txuas ntawm nucleotides. Cov pob txha ntawm ribonucleic acid (RNA) yog tsim los ntawm ribose qab zib uas hloov nrog phosphate pawg. Kev tsim cov pob txha caj qaum yog ua tiav thaum nws khi rau cov hauv paus nitrogenous. Ribose phosphates yog suav tias yog cov khoom tseem ceeb ntawm nucleotide coenzymes. Microorganisms siv qhov no txhawm rau txhawm rau tsim cov amino acid histidine. Ribose tsis tsuas pom nyob rau hauv RNA; Nws yog tam sim no ua ib feem tseem ceeb ntawm ATP (Adenosine triphosphate). ATP yog suav tias yog lub zog txiaj ntawm txhua lub hlwb. Nyob rau hauv tib neeg, thaum lub sij hawm strenuous ce workouts, lub zog yog depleted ntau heev. Txhawm rau txhim kho cov synthesis ntawm cov protein thiab rov ua kom lub zog tsis txaus, cov tshuaj ribose tau pom zoo.
Ribulose yog dab tsi?
Ribulose, ua ketopentose, yog monosaccharide uas muaj tsib carbon atoms nrog rau ketone functional pawg. Muaj ob qhov ua tau enantiomers ntawm ribulose. Lawv yog D-ribulose (D-erythro-pentulose) thiab L-ribulose (L-erythro-pentulose). Ribulose yog synthesized los ntawm txoj kev pentose phosphate thiab plays lub luag haujlwm tseem ceeb hauv kev tsim cov tshuaj bioactive ntau. Txoj kev pentose phosphate yog ib txoj hauv kev metabolic uas yog tib yam rau glycolysis, thiab nws muaj ob txoj hauv kev. Ntawm no, NADPH yog tsim nyob rau hauv oxidative theem thaum pentose yog generated los ntawm lub non-oxidative theem. D-ribulose yog suav hais tias yog ib qho piv txwv raws li nws yog ib qho nruab nrab ntawm txoj kev fungal uas pab tsim D-arabitol.
Daim duab 02: Ribulose
Tsis tas li ntawd, D-ribulose thiab 1, 5-bisphosphate ua ke nrog carbon dioxide pib hauv cov txheej txheem photosynthesis hauv cov nroj tsuag ntsuab. Ribulose 1, 5-bisphosphate (RuBP) yog ib qho tsis muaj xim anion thiab ob chav phosphate ester ntawm ketopentose; Ribulose. Ribulose-1, 5-bisphosphate carboxylase oxygenase (RuBisCO) nqa tawm catalysis ntawm cov tshuaj tiv thaiv ntawm RuBP thiab carbon dioxide thaum lub sij hawm photosynthesis. Qhov no yog thawj kauj ruam ntawm carbon fixation; Yog li, carbon dioxide hloov mus rau lub zog nplua nuj molecules xws li qabzib. Hauv Calvin lub voj voog, RuBP yog tsim los ntawm phosphorylation ntawm ribulose-5-phosphate los ntawm ATP.
Dab tsi yog qhov zoo sib xws ntawm Ribose thiab Ribulose?
- Ob leeg ribose thiab ribulose yog monosaccharides.
- Lawv yog pentose qab zib uas muaj 5 carbons.
- Lawv sib koom cov tshuaj formula, C5H10O5
- Ob leeg yog cov qauv isomers.
Qhov txawv ntawm Ribose thiab Ribulose yog dab tsi?
Ribose vs Ribulose |
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| Ribose yog aldose qab zib-muaj ib pawg aldehyde (-CHO). | Ribulose muaj ketone pawg (-C=O) thiab raug xa mus rau ketose qab zib. |
| ob daim ntawv cog lus | |
| Nyob rau hauv ribose, thawj carbon muaj ob daim ntawv cog lus. | Nyob rau hauv ribulose, ob daim ntawv cog lus yog nyob rau ntawm ob carbon. |
| Cov pob txha ntawm ribonucleic acid (RNA) yog tsim los ntawm ribose. | Nyob rau hauv Calvin lub voj voog (teeb meem tsaus nti) ntawm photosynthesis, ribulose bisphosphate yog thawj CO2 txais. |
Summary – Ribose vs Ribulose
Carbohydrates yog cov macronutrients tseem ceeb hauv lub cev. Monosaccharides yog cov suab thaj yooj yim uas muaj peev xwm los ua ke sib txawv xws li disaccharides thiab polysaccharides. Ribose thiab Ribulose yog ob monosaccharides. Ob leeg yog pentose qab zib. Ribose muaj cov pab pawg ua haujlwm aldehyde thiab feem ntau hu ua aldopentose qab zib. Ribulose yog hu ua ketopentose qab zib vim muaj cov ketone ua haujlwm pab pawg. Qhov no yog qhov txawv ntawm Ribose thiab Ribulose. Vim tias qhov sib txawv ntawm cov qauv no, ribose thiab ribulose muaj ntau yam haujlwm hauv lub neej.
Download PDF Version of Ribose vs Ribulose
Koj tuaj yeem rub tawm PDF version ntawm kab lus no thiab siv nws rau offline hom phiaj raws li daim ntawv ceeb toom. Thov download PDF version ntawm no Qhov txawv Ntawm Ribose thiab Ribulose.
