Question 1

Briefly explain the procedure involved in using an oligosaccharide microarray to identify the binding specificity for a potential lectin.

Accepted Answer

First,one synthesizes as many different

Question 2

To possess optical activity,a compound must be:

Accepted Answer

A) a carbohydrate. 
B) a hexose. 
C) asymmetric. 
D) colored. 
E) D-glucose. 
A) a carbohydrate. 
B) a hexose. 
C) asymmetric. 
D) colored. 
E) D-glucose.

Question 3

When the linear form of glucose cyclizes,the product is a(n):

Accepted Answer

A) anhydride. 
B) glycoside. 
C) hemiacetal. 
D) lactone. 
E) oligosaccharide. 
A) anhydride. 
B) glycoside. 
C) hemiacetal. 
D) lactone. 
E) oligosaccharide.

Question 4

Which of the following statements about hydrogen bonding in glycogen and cellulose is true?

Accepted Answer

A) Glycogen forms more internal H-bonds than cellulose. 
B) Extensive internal hydrogen bonding makes cellulose more water soluble than glycogen. 
C) Extensive hydrogen bonding with water makes cellulose more soluble than glycogen. 
D) Glycogen primarily forms hydrogen bonds within a single chain. 
E) The hydrogen bonding in cellulose favors a helical conformation. 
A) Glycogen forms more internal H-bonds than cellulose. 
B) Extensive internal hydrogen bonding makes cellulose more water soluble than glycogen. 
C) Extensive hydrogen bonding with water makes cellulose more soluble than glycogen. 
D) Glycogen primarily forms hydrogen bonds within a single chain. 
E) The hydrogen bonding in cellulose favors a helical conformation.

Question 5

The reference compound for naming D and L isomers of sugars is:

Accepted Answer

A) fructose. 
B) glucose. 
C) glyceraldehyde. 
D) ribose. 
E) sucrose. 
A) fructose. 
B) glucose. 
C) glyceraldehyde. 
D) ribose. 
E) sucrose.

Question 6

Categorize each of the following as an aldose,a ketose,or neither.

Accepted Answer

Molecules (b)and (d)

Question 7

Define each in 20 words or fewer:
(a)anomeric carbon
(b)enantiomers
(c)furanose
(d)pyranose
(e)glycoside
(f)epimers
(g)aldose
(h)ketose

Accepted Answer

(a)The anomeric carbon is the carbonyl c

Question 8

Briefly explain how the drugs Tamiflu and Relenza work to prevent the flu.

Accepted Answer

A newly formed flu virus needs to get ou

Question 9

Explain in molecular terms why humans cannot use cellulose as a nutrient,but goats and cattle can.

Accepted Answer

The ruminant animals have in their rumen

Question 10

Explain why all mono- and disaccharides are soluble in water.

Accepted Answer

These compounds have many hydr

Question 11

Which of the following is a dominant feature of the outer membrane of the cell wall of gram negative bacteria?

Accepted Answer

A) Amylose 
B) Cellulose 
C) Glycoproteins 
D) Lipopolysaccharides 
E) Lipoproteins 
A) Amylose 
B) Cellulose 
C) Glycoproteins 
D) Lipopolysaccharides 
E) Lipoproteins

Question 12

Describe the process by which "old" serum glycoproteins are removed from the mammalian circulatory system.

Accepted Answer

Newly synthesized serum glycoproteins be

Question 13

Identify all the epimeric pairs in the structures shown below.

Accepted Answer

Epimeric pairs should have one carbon of

Exam 7: Carbohydrates and Glycobiology

Briefly explain the procedure involved in using an oligosaccharide microarray to identify the binding specificity for a potential lectin.

To possess optical activity,a compound must be:

When the linear form of glucose cyclizes,the product is a(n):

Which of the following statements about hydrogen bonding in glycogen and cellulose is true?

The reference compound for naming D and L isomers of sugars is:

Categorize each of the following as an aldose,a ketose,or neither.

Define each in 20 words or fewer: (a)anomeric carbon (b)enantiomers (c)furanose (d)pyranose (e)glycoside (f)epimers (g)aldose (h)ketose

Briefly explain how the drugs Tamiflu and Relenza work to prevent the flu.

Explain in molecular terms why humans cannot use cellulose as a nutrient,but goats and cattle can.

Explain why all mono- and disaccharides are soluble in water.

Which of the following is a dominant feature of the outer membrane of the cell wall of gram negative bacteria?

Describe the process by which "old" serum glycoproteins are removed from the mammalian circulatory system.

Identify all the epimeric pairs in the structures shown below.

The Foundations of Biochemistry

Water

Amino Acids, peptides, and Proteins

The Three-Dimensional Structure of Proteins

Protein Function

Enzymes

Nucleotides and Nucleic Acids

Recombinant Dna Technology

Lipids

Biological Membranes and Transport

Biosignaling

Principles of Bioenergetics

Glycolysis, gluconeogenesis, and the Pentose Phosphate Pathway

Principles of Metabolic Regulation

The Citric Acid Cycle

Fatty Acid Catabolism

Amino Acid Oxidation and the Production of Urea

Oxidative Phosphorylation and Photophosphorylation

Carbohydrate Biosynthesis in Plants and Bacteria

Lipid Biosynthesis

Biosynthesis of Amino Acids, nucleotides, and Related Molecules

Integration and Hormonal Regulation of Mammalian Metabolism

Genes and Chromosomes

Dna Metabolism

Rna Metabolism

Protein Metabolism

Regulation of Gene Expression

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