Cov piam thaj tsis txo qis tsis muaj OH pawg txuas nrog cov pa roj carbon monoxide yog li lawv tsis tuaj yeem txo lwm cov tebchaw. Tag nrho cov monosaccharides xws li qabzib yog txo cov suab thaj. Ib qho disaccharide tuaj yeem ua rau txo cov suab thaj lossis tsis txo cov suab thaj. M altose thiab lactose txo cov suab thaj, thaum sucrose yog cov piam thaj tsis txo qis
YPuas sucrose lossis lactose txo qis qab zib?
Yog. M altose (glucose + qabzib) thiab lactose (galactose + qabzib) muaj pab pawg aldehyde dawb thiab yog li txo cov suab thaj. Puas yog sucrose txo cov piam thaj? Tsis yog.
YPuas lactose txo qab zib?
Rau tib yam vim li cas lactose yog txo 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.
Vim li cas sucrose tsis txo qab zib?
Sucrose yog disaccharide carbohydrate. … Raws li peb tuaj yeem pom tau tias cov piam thaj thiab fructose koom nrog hauv glycosidic bonds thiab yog li sucrose tsis tuaj yeem koom nrog cov tshuaj tiv thaiv kom txo tau. Li no, sucrose yog ib qho tsis txo cov suab thaj vim tsis muaj aldehyde dawb lossis ketone nyob ib sab ntawm $\rangle CHOH$ pawg
Cov suab thaj twg thiaj txo tau?
Cov khoom noj khoom haus monosaccharides galactose, qabzib thiab fructoseyog txhua yam txo cov suab thaj.
