All sugar-sugar glycosidic bonds are of which of the following types? a. Both O- and N-type linkages or bonds b. None of the options listed c. N-type linkages or bonds d. O-type linkages or bonds
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- Which of the following statements about this structure is TRUE? a. It contains a phosphoester bond b. It contains a pentose sugar. c. It is a deoxynucleoside triphosphate. d. Both a. and b. e. Both a. and c.The difference between an aldose sugar and a ketose sugar is ________. A) the number of carbon atoms B) the position of the hydroxyl groups C) the position of the carbonyl group D) the ring form and the linear chainIn order for hydrogen bonds to form between nucleotides, which of the following needs to be true? (a) they both must be pyrimidines (b) they both must be purines (c) they need to be in opposite orientations (d) they both must contain the sugar ribose (e) both a and b
- Why can a monosaccharide theoretically form diverse disaccharides? a. Because it is classified as an aldose or ketoseb. Because it is a right-handed moleculec. Because it has multiple hydroxyl groups that can form glycosidic bond.d. Because it has several carbonyl groups that can form glycosidic bond.A monosaccharide designated as an aldehyde sugar contains (a) a terminal carboxyl group (b) an internal carboxyl group (c) a terminal carbonyl group (d) an internal carbonyl group (e) a terminal carboxyl group and an internal carbonyl groupThe synthetic process by which monomers are covalently linked is (a) hydrolysis (b) isomerization (c) condensation (d) glycosidic linkage (e) ester linkage
- A. Heteroglycans are polysaccharides with only one type of monosaccharide unit. Heparin is a heteroglycan. * B. First statement is true while second statement is false. C. First statement is false while second statement is true. D. Both statements are true. E. Both statements are false.The sugar molecules shown below are a) Enantiomers b) Epimers c) Anomers d) DiastereomersThe difference between cholesterol molecule and the hopanoid molecule in bacteria is that the hopanoids are: a) hydrophobic b) hydrophilic c) hopanoids have five rings in their chemical structure d) cholesterol has 5 rings in their chemical structure e) c & d
- 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 sugarsPolysaccharides are * A. saccharide unit that contains 3 to 10 units B. the simplest sugar units C. saccharides with 2 sugar units joined through glycosidic linkage D. class of carbohydrates that is considered as non-sugarFatty acids that have ______ are more likely to be liquid at room temperature. A. more double bonds B. fewer double bonds C. a longer carbon chain D. a shorter carbon chain
