Determine whether the following monosaccharides have D or L configuration and classify them based on number of carbons and whether they are aldoses or ketoses: CH2OH CH2OH Но- C=0 C=0 Но- H- FOH H-C-OH H- -HO- Н-с-он НО H- HO- НО -С-н CH2OH Но- -H ČH2OH CH2OH CH2OH

Identify the amino acids contained in the following tripeptide. он он HaN—CH—С—N—CH—С-N—CH—СО" CH2 CH3 CH2 ОН SH

Name all the sugars (monomers) incorporated in cellulose, starch, and glycogen.

Identify the functional groups in the following compounds

A)Label each sugar as D or L b. Label each sugar as a or B

The polysaccharides are starch, glycogen, and cellulose. In the chart below, I put an 'X' under each polysaccharide that the statement applies to. I just wanted to verify my answers as I was confused for a few of them. Thanks!    Glycogen Cellulose Starch Linear and minorly branched   X X Complex carbohydrates X X X Insoluble X X X Unlimited storage in roots of plants     X Fiber - digested by ruminants in living things   X   Beta glucose   X   For structure   X   Can't be digested   X   Extensive branching X     Alpha glucose X   X C, H, and O are backbone X X X Can be digested X   X Limited storage in liver and muscle cells X     Most abundant molecule   X   For energy X   X Glycosidic links from condensation reactions X     Cell walls   X   Found in Plants   X X Found in Animals X     Polymers of Glucose X X X

Although the first two carbons of fructose and glucose are identical in structure to DHAP and GADP (from glycolysis), DHAP and GADP equilibriate on their in solution to favor the ketone over the aldehyde, while fructose and glucose do not.  Why? a)The larger size of the molecule sterically hinders the isomerization b)The larger sugars have more OH groups which hydrogen bond and disrupt isomerization c)The larger sugars cyclize, and there is no carbonyl to isomerize in the cyclic form d)The larger sugars cyclize, and in the cyclic form the hydrogen bonding is very strong e)The larger sugars are less soluble in water than the smaller sugars

Which of the following statement regarding the ends of polysaccharides are true?   for heads up 2 and 4 are not correct .. just pick only one answer   1)  All polysaccharides have one, and only one, reducing end.   2)  Some polysaccharides may have no reducing end.   3)  Some polysaccharides may have no non-reducing ends.   4)  All polysaccharides have a N-glycosidic bond at their reducing ends.   5)  Some polysaccharides may have a functional group other than a carbonyl group at their reducing ends.

18

Explain the structure and its components