Tag nrho cov monosaccharides txo cov suab thaj vim tias lawv muaj ib pab pawg aldehyde (yog tias lawv yog aldoses aldoses Ib qho aldose yog monosaccharide(ib qho qab zib yooj yim) nrog cov roj carbon qaum saw nrog ib carbonyl pawg ntawm cov pa roj carbon monoxide kawg, ua rau nws yog aldehyde, thiab hydroxyl pawg txuas nrog tag nrho lwm cov pa roj carbon atoms. https://en.wikipedia.org › wiki › Aldose
Aldose - Wikipedia
) lossis tuaj yeem tautomerize hauv kev daws los tsim ib pawg aldehyde (yog tias lawv yog ketoses). Qhov no suav nrog cov monosaccharides xws li galactose, qabzib, glyceraldehyde, fructose, ribose, thiab xylose.
Puas yog galactose txo qab zib?
YPuas yog fructose txo qab zib? Yog lawm. Tag nrho cov monosaccharides txo cov suab thaj. Glucose, fructose, thiab galactose yog monosaccharides thiab txo cov suab thaj.
YVim li cas lactose txo qab zib thiab sucrose tsis?
Vim tias aglycone yog hemiacetal, lactose dhau mus hloov pauv Vim li cas lactose yog txo qis qab zib. Cov dawb aldehyde tsim los ntawm lub nplhaib qhib tuaj yeem hnov mob nrog Benedict cov tshuaj. Yog li, cov tshuaj lactose muaj ob qho tib si α thiab β anomer ntawm "txo qhov kawg" ntawm cov disaccharide.
YVim li cas fructose thiaj txo cov suab thaj?
Cov pab pawg aldehyde tuaj yeem oxidized los ntawm cov tshuaj tiv thaiv redox, tab sis cov suab thaj nrog ketone pawg hauv lawv cov saw hlau qhib muaj peev xwm ntawm isomerizing los ntawm kev hloov pauv tautomeric los tsim aldehyde pawg. … Yog li fructose txo cov suab thaj.
txhais li cas rau qab zib kom txo qis qab zib?
Kev Kho Mob Txhais ntawm kev txo cov piam thaj
: qab zib (raws li qabzib, m altose, lossis lactose) uas muaj peev xwm txo tau cov tshuaj oxidizing me me (raws li Fehling tov) - saib Benedict qhov kev sim - piv tsis txo qis.
