How many molecules of water are needed to completely hydrolyze a polymer that is
ID: 99331 • Letter: H
Question
How many molecules of water are needed to completely hydrolyze a polymer that is 11 monomers long? A) 12 B) 11 C) 10 D) 9 E) 8 The molecular formula for glucose is C_6H_12O_6. What would be the molecular formula for a molecule made by linking three glucose molecules together by dehydration reactions? A) C_18H_36O_18 B) C_18H_32O_16 C) C_16H_10O_5 D) C_18H_10O_15 E) C_3H_6O_3 On food packages, to what does the term insoluble fiber refer? A) cellulose B) polypeptides C) starch D) amylopectin E) chitin Lactose, a sugar in milk, is composed of one glucose molecule joined by a glycosidic linkage to one galactose molecule. How is lactose classified? A) as a pentose B) as a hexose C) as a monosaccharide D) as a disaccharide E) as a polysaccharide Humans can digest starch but not cellulose because A) the monomer of starch is glucose, while the monomer of cellulose is galactose. B) humans have enzymes that can hydrolyze the beta glycosidic linkages of starch but not the alpha glycosidic linkages of cellulose. C) humans have enzymes that can hydrolyze the alpha glycosidic linkages of starch but not the beta glycosidic linkages of cellulose. D) humans harbor starch-digesting bacteria in the digestive tract. E) the monomer of starch is glucose, while the monomer of cellulose is glucose with a nitrogen-containing group. Which of the following statements concerning saturated fats is not true? A) They are more common in animals than in plants. B) They have multiple double bonds in the carbon chains of their fatty acids. C) They generally solidify at room temperature. D) They contain more hydrogen than unsaturated fats having the same number of carbon atoms.Explanation / Answer
Answer 28 is A
Insoluble fibre in food is cellulose . It contains in plant items .It is not broken down in gut and absorbed in blood. It always increases the bulk of digestive system and helps to prevent the constipation .
Answer 29 is D.
lactose is a disaacharide . Disahharide is a biomolecule whic is formed by combination of two saccharide units . It is a sugar present in all milk products .sometimes old age peoplen fails to digest it due to decreased amount of lactase enzyme. so this is called lactose intolrence.
Answer 31 is B.
saturated fatty acids always contains single bonds in carbon chain of fatty acids while unsaturated fatty acid cintain multiple bond.
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