Qhov Tseem Ceeb - Txo Qab Zib vs Starch
Redox yog tshuaj lom neeg cov tshuaj tiv thaiv uas hloov cov oxidation naj npawb ntawm cov molecule, atom los yog ion. Oxidation thiab Reduction yog ob lub ntsiab lus tshwm sim thaum lub sij hawm Redox cov tshuaj tiv thaiv. Kev poob ntawm electrons lossis nce hauv oxidation xeev yog hu ua oxidation thaum qhov nce ntawm electrons lossis txo qis hauv oxidation lub xeev hu ua txo. Tus neeg sawv cev txo qis yog ib qho molecule uas tuaj yeem pub cov khoom siv hluav taws xob rau lwm lub molecule thiab ua rau txo qis hauv oxidation xeev. Qee cov suab thaj tuaj yeem ua raws li cov neeg ua haujlwm txo qis. Lawv hu ua txo cov suab thaj. Txo cov suab thaj muaj pawg aldehyde los ua oxidized thiab hloov mus rau hauv pawg carboxylic acid. Cov hmoov txhuv nplej siab yog ib qho polymer ua los ntawm amylose thiab amylopectin. Nws yog qhov loj carbohydrate cia hauv cov nroj tsuag. Cov hmoov txhuv nplej siab tsis muaj hydrogen molecule dawb uas txuas rau oxygen. Yog li, cov hmoov txhuv nplej siab tsis tuaj yeem tsim cov aldehyde qhib thiab vim li ntawd tsis tuaj yeem oxidized thiab txo lwm cov suab thaj. Qhov sib txawv tseem ceeb ntawm Kev Txo cov piam thaj thiab Starch yog cov hmoov txhuv nplej siab tsis yog txo cov suab thaj vim tsis muaj hydrogen ntawm lub voj voog oxygen kom tso cai rau lub nplhaib qhib.
Kev Txo Qab Zib yog dab tsi?
Qab zib soluble carbohydrates yog hu ua suab thaj. Muaj ntau hom suab thaj. Lawv tuaj yeem yog monosaccharides (cov suab thaj yooj yim), disaccharides lossis polysaccharides. Monosaccharides muaj xws li qabzib, fructose, galactose thiab lwm yam Disaccharides muaj xws li sucrose, lactose thiab lwm yam Polysaccharides muaj xws li starch, cellulose, pectin thiab lwm yam. Feem ntau ntawm cov monosaccharides muaj ib pawg aldehyde los yog ib pawg ketone. Yog li, lawv tuaj yeem oxidized thiab ua raws li tus neeg sawv cev txo qis rau lwm cov molecule. Txhua lub suab thaj uas muaj peev xwm ua tau raws li tus neeg sawv cev txo qis yog hu ua txo cov suab thaj. Qab zib molecule ua oxidized los ntawm kev txo lwm cov compound. Thaum cov tshuaj tiv thaiv no, cov carbonyl carbon ntawm cov piam thaj molecule hloov mus rau hauv pawg carboxyl poob electrons.
Daim duab 01: Txo Qab Zib
qab zib uas peb noj yog sucrose. Sucrose yog ib qho disaccharide ua los ntawm ib qho molecule ntawm fructose thiab ib qho molecule ntawm qabzib. Sucrose tsis muaj aldehyde dawb lossis keto pawg. Yog li ntawd, nws yog ib qho tsis txo cov suab thaj. Qee cov disaccharides txo cov suab thaj xws li lactose, cellobiose, thiab m altose. Qee cov oligosaccharides thiab polysaccharides kuj ua raws li cov neeg ua haujlwm txo qis. Txo cov suab thaj tuaj yeem txheeb xyuas los ntawm kev sim yooj yim uas hu ua Tollens's test lossis Benedict's test.
Starch yog dab tsi?
Starch yog cov ceg ntoo thiab muaj kev sib koom ua ke zoo heev polymeric carbohydrate. Nws yog dawb, tasteless granular organic compound ua los ntawm amylase (linear polymer) thiab amylopectin (branched polymer). Starch yog polysaccharide uas muaj cov tshuaj formula ntawm (C6H10O5) n Starch yog tsim los ntawm cov nroj tsuag ntsuab ua lub zog cia hauv cov noob, cov hauv paus hniav, tubers, qia thiab txiv hmab txiv ntoo. Txij li thaum feem ntau ntawm cov nroj tsuag muaj cov hmoov txhuv nplej siab, nws yog cov carbohydrate ntau tshaj plaws hauv tib neeg noj. Cov hmoov txhuv nplej siab yog lub ntsiab polymer hauv feem ntau ntawm cov khoom noj uas peb noj xws li nplej, mov, qos yaj ywm, pob kws thiab lwm yam.
Daim duab 02: Starch
Starch yog ib qho tsis txo cov suab thaj. Nws tsis muaj aldehyde dawb lossis ketone pawg los qhib cov hmoov txhuv nplej siab. Cov hmoov txhuv nplej siab tuaj yeem txheeb xyuas los ntawm kev sim iodine. Starch muab xim xiav-Black nrog iodine. Glycogen uas nyob rau hauv cov ntaub so ntswg tsiaj muaj ib tug zoo xws li cov hmoov txhuv nplej siab. Tab sis glycogen muaj ceg ntau dua cov hmoov txhuv nplej siab.
Dab tsi zoo sib xws ntawm Kev Txo Qab Zib thiab Starch?
- Txo cov suab thaj thiab hmoov txhuv nplej siab yog carbohydrates
- ob leeg yog tsim los ntawm monosaccharides.
- Ob leeg muaj C, H, thiab O.
- Txo cov suab thaj thiab hmoov txhuv nplej siab muaj nyob hauv cov nroj tsuag thiab lwm yam kab mob.
Qhov txawv ntawm Kev Txo Qab Zib thiab Starch yog dab tsi?
Txo Qab Zib vs Starch |
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| Ib qho qab zib uas muaj peev xwm ua raws li tus neeg sawv cev txo qis yog lub npe hu ua kev txo cov piam thaj. | Starch yog ib qho complex polymer ua los ntawm amylase thiab amylopectin thiab yog ib qho tsis txo cov suab thaj. |
| Hom Qab Zib | |
| Feem ntau ntawm cov piam thaj txo qis yog monosaccharides. | Starch yog polysaccharide. |
| Presence of Dawb Aldehyde lossis Keto Group | |
| Txo cov suab thaj muaj dawb aldehyde lossis keto pawg. | Starch tsis muaj aldehyde dawb lossis keto pawg. |
| Benedict Reaction | |
| Txo cov suab thaj muab cov xim liab tsaus (xim xim cib). | Starch tsis muab xim liab, hloov yog ntsuab ntsuab. |
| Iodine Reaction | |
| Txo cov suab thaj tsis muab xim xiav / dub. | Starch muab xim xiav / dub. |
Summary – Txo Qab Zib vs Starch
Carbohydrates yog ntau hom xws li monosaccharides, disaccharides, oligosaccharides, thiab polysaccharides. Cov hmoov txhuv nplej siab yog ib qho polysaccharide tsim los ntawm linear polymer amylase thiab branched polymer amylopectin. Nws yog ib qho nyuaj heev polymer uas tsis muaj dawb aldehyde lossis ketone pawg. Qab zib carbohydrates feem ntau hu ua suab thaj. Qee cov suab thaj feem ntau yog monosaccharides thiab qee cov disaccharides ua kom txo cov neeg ua haujlwm vim lawv muaj cov aldehyde dawb lossis ketone pawg hauv lawv cov qauv. Li no, lawv hu ua txo cov suab thaj. Cov hmoov txhuv nplej siab tsis yog txo cov piam thaj. Txawm li cas los xij, hmoov txhuv nplej siab yog lub ntsiab organic compound uas yog tsim los ntawm cov nroj tsuag los khaws lub zog. Qhov no yog qhov sib txawv ntawm kev txo cov piam thaj thiab cov hmoov txhuv nplej siab.
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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 Txo Qab Zib thiab Starch
