Question

1) A carbohydrate present in the blood is:

A) glucose. B) fructose. C) sucrose. D) maltose

2) A component of lactose is the sugar:

A) deoxyribose. B) fructose C) galactose D) ribose

3) A polysaccharide containing β (1,4) linkages is:

A) cellulose B) amylose C) glycogen D) amylopectin

4) A short description of a stereoisomer would be?

A) There is more than one correct response. B) Stereoisomers are those compounds that can have two isomers that are straight chain and the right side is different from the left side.

C) Stereoisomers are two isomers that resemble each other in the sense that one of the isomers is the mirror image of the other. D) Stereoisomers are all of the isomers for compounds that can have in excess of two isomers.

5) A sugar present in honey in a 1:1 ratio with glucose is:

A) fractose. B) sucrose. C) maltose. D) galactose

6) Artificial sweeteners should be avoided by people suffering from phenylketonuria (PKU) due to their body’s inability to metabolize __________ properly.

A) phenylalanine. B) phenols. C) ketones. D) aldehydes

7) How many stereoisomers of an aldopentose exist?

A) 6. B) 8. C) 2. D) 4

8) Maltose upon hydrolysis yields:

A) glucose and fructose. B) glucose and galactose. C) hydrolysis does not occur. D) Only glucose.

9) Of the monosaccharides, which is the most important nutritionally?

A) fructose. B) glucose. C) galactose. D) ribose

10) Structurally, glycogen is most similar to:

A) amylopectin. B) sucrose. C) cellulose. D) amylose

11) Sugars which contain an aldehyde group that can be oxidized are called:

A) simple sugars. B) glycosides. C) oxidizing sugars. D) reducing sugars

12) The body stores carbohydrates as:

A) glycogen. B) starch. C) cellulose. D) sucrose

13) The cyclic form of glucose results from the formation of:

A) an ester. B) a hemiacetal. C) an amide. D) an acetal

14) The linkage between the two monosaccharide units of a disaccharide is a:

A) ester linkage. B) alpha linkage. C) glycosidic linkage. D) hemiacetal linkage

15) The sweetest of the common sugars is:

A) galactose. B) glucose. C) maltose. D) fructose.

16) Which of the following statements about chiral carbons is correct?

A) A chiral carbon can be an interior carbon. B) There is more than one correct response.

C) A chiral carbon is one that determines the possibility of stereoisomerism. D) A chiral carbon is one that has four different groups attached.

17) Which of the following is NOT a carbohydrate:

A) cellulose. B) deoxyribose. C) glycogen. D) amylopectin.

18) Which of the following carbohydrates yields invert sugar upon hydrolysis?

A) fructose. B) starch. C) glycogen. D) sucrose.

19) Which form of monosaccharides are preferred by human cells?

A) neither D nor L. B) L. C) both D and L. D) D

PLEASE HELP!!!!