Question 1

A racemic mixture can rotate a plane-polarized light in a clockwise direction.

Accepted Answer

A) True 
 B)False

Question 2

Shown below is a cyclic form of D-mannose. This structure is classified as ___.

Accepted Answer

A)  $\alpha$-D-mannopyranose 
B)  $\beta$-D-mannofuranose 
C)  $\alpha$-D-mannofuranose 
D)  $\beta$-D-mannopyranose 
A)  $\alpha$-D-mannopyranose 
B)  $\beta$-D-mannofuranose 
C)  $\alpha$-D-mannofuranose 
D)  $\beta$-D-mannopyranose

Question 3

The enzyme ___ in saliva begins the digestion of starch.

Accepted Answer

The answer of The enzyme ___ in saliva begins the...

Question 4

The structural formula for erythrose is drawn here. The carbon atoms are numbered from the carbonyl group.

Accepted Answer

A)  This is the only formula for erythrose; there are no stereoisomers. 
B)  This is both a D and an L structure, as determined by carbons 1 and 2. 
C)  This is D-erythrose, as determined by carbon 3. 
D)  This is L-erythrose, as determined by carbon 4. 
A)  This is the only formula for erythrose; there are no stereoisomers. 
B)  This is both a D and an L structure, as determined by carbons 1 and 2. 
C)  This is D-erythrose, as determined by carbon 3. 
D)  This is L-erythrose, as determined by carbon 4.

A racemic mixture can rotate a plane-polarized light in a clockwise direction.

Shown below is a cyclic form of D-mannose. This structure is classified as ___.

The enzyme ___ in saliva begins the digestion of starch.

The structural formula for erythrose is drawn here. The carbon atoms are numbered from the carbonyl group.

Science and Measurements

Atoms and Elements

Compounds

An Introduction to Organic Compounds

Reactions

Gases, Solutions, Colloids, and Suspensions

Acids, Bases, and Equilibrium

Organic Reactions Hydrocarbons, Carboxlic Acids, Amines, and Related Compounds

Organic Reactions 2-Alcohols, Ethers, Aldehydes, and Ketones

Lipids and Membranes

Peptides, Proteins, and Enzymes

Nucleic Acids

Metabolism

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Exam 10: Carbohydrates

A racemic mixture can rotate a plane-polarized light in a clockwise direction.

Shown below is a cyclic form of D-mannose. This structure is classified as ___.

The enzyme ___ in saliva begins the digestion of starch.

The structural formula for erythrose is drawn here. The carbon atoms are numbered from the carbonyl group.

Science and Measurements

Atoms and Elements

Compounds

An Introduction to Organic Compounds

Reactions

Gases, Solutions, Colloids, and Suspensions

Acids, Bases, and Equilibrium

Organic Reactions Hydrocarbons, Carboxlic Acids, Amines, and Related Compounds

Organic Reactions 2-Alcohols, Ethers, Aldehydes, and Ketones

Lipids and Membranes

Peptides, Proteins, and Enzymes

Nucleic Acids

Metabolism

Filters