____ and ____ are glycosamines linked to three-carbon acids at the C-1 or C-3 positions, and components of the polysaccharides of cell higher organisms and bacterial cell walls.
A) Glucosides; galactosides
B) Muramic acid; neuraminic acid
C) Gluconic acid; glucuronic acid
D) Sorbitol; ribitol
E) None of the above

Question

Quizplus · Accepted Answer

Muramic acid and neuraminic acid are both glycosamines linked to three-carbon acids, and are components of polysaccharides in both higher organisms and bacterial cell walls. Glucosides and galactosides are glycosides linked to glucose and galactose, respectively, and are not linked to three-carbon acids. Gluconic acid and glucuronic acid are both three-carbon acids, but they are not glycosamines. Sorbitol and ribitol are sugar alcohols, and are not linked to three-carbon acids.

____ and ____ Are Glycosamines Linked to Three-Carbon Acids at the C-1

and Are Glycosamines Linked to Three-Carbon Acids at the C-1