Of the following disaccharides lactose, maltose, and sucrose

Which contain(s) glucose?
" " galactose?
" " fructose?
" " no hemiacetal group?
Which is(are) reducing carbohydrates?

Question

Of the following disaccharides lactose, maltose, and sucrose

Which contain(s) glucose?
"                       " galactose?
"                       " fructose?
"                       " no hemiacetal group?
Which is(are) reducing carbohydrates?

aaronq · Answer

sucrose = glucose + fructose

lactose = glucose + galactose

maltose = glucose + glucose 

Do you know what a hemiacetal is? (See attachment)

Reducing carbohydrates can interconvert from the linear form into the cyclic form

anonymous · Answer

Thanks so much for not only clarifying this information but also for taking the time to include those helpful attachments!  I really appreciate your help! I got it now ;-)

aaronq · Answer

no problem! glad i could help