Which characteristic is shared by the ring forms of the given monosaccharides? * CH2OH CHO O= H- HO- HO- но- H- но- Но H H- -OH ČH,OH ČH2OH Both exist mainly as furanoses. Both contain a hemiacetal bond. Both can undergo mutarotation. O Both exist mainly as pyranoses.
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- In the following list, identify the carbohydrate, the fatty acid, the amino acid, and the polypeptide: a. NH2CHRCOOH b. C6H12O6 c. (methionine)20 d. CH3(CH2)16COOHWhich linear monosaccharide below corresponds to this cyclic one? A) A B) B C) C D) D E) None of themWhy are polysaccharides (e.g. starch) not soluble in cold water but are soluble in warm water?
- Which two monosaccharides make up this disaccharide? A. Two alpha mannoses B. Two alpha glucoses C. Two alpha galactoses D. One alpha mannose, one alpha glucose E. One alpha mannose, one alpha galactose F. One alpha galactose, one alpha glucose G. One beta mannose, one alpha glucose H. One alpha mannose, one beta glucoseStarch can be separated into two principal polysaccharides, amylose and amylopectin. What is the major difference in structure between the two?Which of the following statements about monosaccharides is true? A. Monosaccharides are classified according to the location of their carbonyl group. B. The penultimate chiral center of a monosaccharide determines its handedness. C. If the carbonyl group of a monosaccharide is terminal then it will react positively with Barfoed's and Seliwanoff's tests. D. The cyclization of monosaccharides results to the formation of a cyclic ether. E. The existence of anomers is due to the mutarotation along the reference carbon
- Plants often produce waxes on the surface of their leaves toprevent dehydration and protect against insects. What structural feature of waxes makes them more suitable for this taskthan carbohydrates or proteins?Draw the ketose and aldose forms of a monosaccharidewith the chemical formula C3H6O3. How is the structureof the monosaccharide changed from one form to theother in the human body?When blood levels of glucose are higher than normal,glucose molecules react with protein side chains such as thatof lysine residues to produced glycated side chains. Explainwhy this process is dangerous. What is the name of the firstfunctional group that is formed during glycation?
