Chem 336 - Spring 1999 - Organic Chemistry III
Portland State University - Dr. Carl C. Wamser

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Chapter 26 Pre-Quiz Answers

(1 point each)

1. In a balanced reaction, conversion of ethanol to ethanal requires how many equivalents of NAD+ ?

a) 1

b) 2

c) 3

d) 0.5

2. The conversion of 2-phosphoglycerate to phosphoenolpyruvate would be categorized as what type of reaction?

a) oxidation

b) reduction

c) phosphorylation

d) dehydration

e) substitution

3. The most common function of FADH2 is as

a) an oxidizing agent

b) a reducing agent

c) an enzyme

d) an electron acceptor

4. The ribitol unit found in FAD+ differs from D-ribose in that

a) it is an epimer

b) it is a diastereomer

c) the aldehyde is reduced

d) alcohols are converted to ethers

e) it really is D-ribose

5. Per gram, fats give 2.5 times more energy than carbohydrates because fats

a) are nonpolar

b) are less stable

c) have more C-C bonds

d) are more highly reduced

e) have higher molecular weights