Assignment: Ethanol Metabolism
Instructions:
Read the article Highlight 7: Alcohol & Nutrition and answer the following questions. Place answers
on the answer sheet at the end of this document for submission.
1. An alcohol is a compound that is characterized by the presence of which functional group?
a)
b)
c)
d)
e)
NH2
CO
COOH
OH
none of the above
2. What is the chemical name of the alcohol found in alcoholic beverages?
a)
b)
c)
d)
e)
glycerol
ethyl alcohol
isopropyl alcohol
ethanol
both b and d
3. What is the chemical formula of ethanol?
a)
b)
c)
d)
e)
C2H4O2
CH4O
C2H6O
C3H8O3
CH5O
4. Ethanol and water are said to be ___________ with each other.
a)
b)
c)
d)
e)
insoluble
slightly soluble
soluble
immiscible
miscible
5. A rating of 80 proof with respect to alcohol content means the same as:
a)
b)
c)
d)
e)
50 % alcohol
80 % alcohol
20 % alcohol
90 % alcohol
40 % alcohol
6. What is “a drink” defined as?
a)
b)
c)
d)
e)
0.5 ounce of pure ethanol
12 ounces of beer
4-5 ounces of wine
1.5 ounces of 40 % distilled liquor
all of the above
7. Which of the following factors affect alcohol tolerance?
a)
b)
c)
d)
e)
genetics
sex
age
body composition
all of the above
8. After ingestion, how long does it take for alcohol to reach the brain?
a)
b)
c)
d)
e)
1 min
5 min
10 s
20 min
1h
9. Why do heavy drinkers tend to develop fatty livers?
a) heavy drinkers ingest too much fat
b) existing fat stores in the body are transported to the liver upon excessive alcohol ingestion
c) liver cells can’t package and transport excess fat since they are preoccupied with alcohol
metabolism
d) fat stores in the liver are used to trap the alcohol until no longer needed
e) fat cells produce the enzyme that metabolizes alcohol
10. What is the recommended intake for alcohol?
a)
b)
c)
d)
e)
no more than 1 ounce of ethanol per hour
no more than 2 drinks every 30 min
no more than 1 drink per hour
no more than 2 drinks per hour
all of the above are recommended alcohol intakes
11. What are two metabolic products of ethanol metabolism?
a)
b)
c)
d)
e)
alcohol dehydrogenase and acetaldehyde
NADH and acetaldehyde dehydrogenase
NAD+ and acetyl CoA
acetaldehyde and acetyl CoA
alcohol dehydrogenase and NADH
12. Which compound is responsible for the punishing effects of excessive alcohol intake?
a)
b)
c)
d)
e)
niacin
NADH
ethanol
acetyl CoA
acetaldehyde
13. The three stages of liver disease that can occur due to excessive alcohol ingestion occur in the
following order:
a)
b)
c)
d)
e)
fibrosis, cirrhosis, fatty liver
fatty liver, cirrhosis, fibrosis
cirrhosis, fibrosis, fatty liver
fatty liver, fibrosis, cirrhosis
fibrosis, fatty liver, cirrhosis
14. Which of the following is involved in the elimination of alcohol from the body?
a)
b)
c)
d)
e)
alcohol dehydrogenase
acetaldehyde dehydrogenase
MEOS
respiration and urination
all of the above
15. Ethanol is best described as being a(an):
a)
b)
c)
d)
e)
anesthetic
stimulant
depressant
all of the above
none of the above
16. Which of the following effects of alcohol on the brain occurs first?
a)
b)
c)
d)
e)
staggered movement and slurred speech
anesthetic effect on centers responsible for breathing and heartbeat
decreased ability to reason
sedated speech and vision centers
both b and c
17. Alcohol ingestion results in:
a)
b)
c)
d)
e)
decreased level of ADH
increased level of ADH
dehydration
both b and c
both a and c
18. What is the energy value of alcohol?
a)
b)
c)
d)
e)
7 kcal
6 kcal
4 kcal
9 kcal
0 kcal since it does not contribute to caloric intake
19. Which of the following can result from alcohol ingestion?
a)
b)
c)
d)
e)
folate deficiency
Wernicke-Korsakoff syndrome
lowered red blood cell production
increased secretion of stomach acid and histamine
all of the above
20. Which of the following statements has absolute truth?
a)
b)
c)
d)
e)
hard liquors are more harmful than wine and beer
alcohol is legal and, therefore, not a drug
a dose of alcohol warms you up
beer is a great source of carbohydrate, vitamins, minerals, and fluids
none of the above
Answer Sheet: Alcohol & Nutrition
1. ____
2. ____
3. ____
4. ____
5. ____
6. ____
7. ____
8. ____
9. ____
10.____
11.____
12.____
13.____
14.____
15.____
16.____
17.____
18.____
19.____
20.____
Name: ______________________ /20