Answer in a few sentences if possible :) 11. Cellulose and starch are both polys
ID: 1036719 • Letter: A
Question
Answer in a few sentences if possible :) 11. Cellulose and starch are both polysaccharides that are ingested by humans. Compare cellulose and starch, highlighting similarities and differences in chemical structure, cellular function, and role in a human diet. 12. Cellulose and starch are both polymers of glucose, yet most mammals can use starch, but not cellulose, as a source of fuel. Explain why this is the case. Ruminents have successfully overcome this limitation and subsist on a diet of grasses. How have they accomplished this feat? 13. Suppose you had three polysaccharides- amylose, amylopectin, and glycogen-each with the same number of monosaccharide units. Which would be degraded the fastest, assuming the enzymes acting to degrade the polysaccharides all worked at the same rate? 14. What chemical property of glycosaminoglycans contributes to their role as lubricants? 15. How does the side chain of serine make it a good amino acid for connecting to a carbohydrate moiety? What other amino acids serve as a connection point for carbohydrate on a protein? Why? 16. How do glycolipids and lipopolysaccharides differ?
Explanation / Answer
11. starch consists alpha (1,4 linkage)glucose ,wheer as cellulose consists beta (1,4 linkage)glucose in structures.
although these two are polysaccarides, startch dissolves in water , but cellulose does not dissolve as cellulose is strong crystalline than starch.
12. yes mammals use starch as engery source but not cellulose , because mamals dont have enzymes which can breakdown cellulose and cant digest it, but mamals have enzymes that breakdown starch into glucose and gives energy to the body.
13.amylose and amylopectine are starch polysaccarides.gycogen has more branched so amylose degrade faster.
14.glycosaminoglycans composed of repeating diisacharides that are known as GAGs, because of its low compresibility and high viscosity these exihibit lubricant properties.
15. side chain of serine cotains hydroxymethyl group which makes serine as polar amino acid.
16.glyclipids consisting of carbohydrates and liposaccahrides are bonded with covalent bonding.