Deck 8: Caffeine

Question 1

Peak levels of caffeine after taking a dose occur in .

A) 1 - 2 minutes
B) 5 - 10 minutes
C) 15 - 45 minutes
D) 1 - 2 hours

Answer 1

C

Question 2

Which popular soft drink contains the highest concentration of caffeine?

A) Pepsi-Cola
B) Coca-Cola
C) Mountain Dew
D) Dr. Pepper

Answer 2

C

Question 3

Which of the following contains the highest concentration of caffeine?

A) brewed coffee
B) brewed tea
C) coca-cola
D) Red Bull

Answer 3

A

Question 4

is the dominant source of caffeine in Ireland.

A) coffee
B) tea
C) chocolate
D) coffee and tea are equal

Question 5

Cocoa is primarily produced in .

A) Brazil
B) Africa
C) the United States
D) Switzerland

Question 6

Caffeine is chemically related to .

A) theophylline
B) theobromine
C) nicotine
D) all of these
E) theophylline and theobromine only

Question 7

What type of caffeine did 16^th century European explorers discover in Mexico?

A) coffee
B) tea
C) the cacao plant
D) the kola nut

Question 8

The half-life of caffeine in the blood ranges from .

A) 15-30 minutes
B) 1-2 hours
C) 3-7 hours
D) 12-24 hours

Question 9

Tea contains as well as caffeine.

A) theophylline
B) theobromine
C) nicotine
D) all of these
E) theophylline and theobromine

Question 10

Citizens of are the world's top coffee consumers.

A) the U.S.
B) Great Britain
C) Scandinavian countries
D) Brazil

Question 11

has the highest per capita consumption of cocoa.

A) the United States
B) Belgium
C) Switzerland
D) Denmark

Question 12

Milk chocolate contains more than caffeine.

A) theophylline
B) theobromine
C) nicotine
D) all of these
E) theophylline and theobromine

Question 13

Caffeine-producing plants are indigenous to .

A) China
B) West Africa
C) North America
D) South America
E) all of these

Question 14

Europeans first began using caffeine in .

A) the Stone Age
B) 200 B.C.
C) the late 15th and early 16th centuries
D) the 19th century

Question 15

The United States' consumption of caffeine is the world average.

A) half of
B) the same as
C) twice
D) four times

Question 16

A(n) is a compound that is of botanical origin, contains nitrogen, and is physiologically active.

A) theobromine
B) methylxanthine
C) theophylline
D) alkaloid

Question 17

Caffeine is one of three naturally occurring compounds known as the .

A) theobromines
B) methylxanthines
C) endorphins
D) tricyclics

Question 18

Which drug(s) is/are notable for being "cradle to grave" drugs?

A) caffeine
B) nicotine
C) alcohol
D) all of these
E) caffeine and nicotine

Question 19

In the United States, caffeine is most often consumed in the form of .

A) chocolate
B) tea
C) colas
D) coffee

Question 20

Estimates are that of the world's population regularly consumes products containing caffeine.

A) 20%
B) 50%
C) 75%
D) 90%

Question 21

Withdrawal from caffeine lasts about .

A) one day
B) two to three days
C) one week
D) two to three weeks

Question 22

How does caffeine affect human task performance?

A) It increases performance.
B) It decreases performance.
C) It increases performance in some areas and decreases it in others.
D) Caffeine does not affect performance.

Question 23

The explanation for caffeine's acute effects that is most accepted now is the hypothesis.

A) phosphodiesterase
B) aminophylline
C) adenosine
D) glucose

Question 24

Symptoms of caffeinism start to appear after mg of caffeine has been consumed.

A) 250
B) 600
C) 1,000
D) it depends on the individual

Question 25

What is the Federal Drug Administration's position on the use of caffeine by pregnant women?

A) pregnant women should not use caffeine
B) pregnant women should only use caffeine in the first trimester
C) moderate doses of caffeine do not have negative effects on reproduction
D) the use of caffeine by pregnant women may have beneficial effects

Question 26

Smokers smoke cigarettes after drinking coffee.

A) more
B) fewer
C) the same number of

Question 27

According to the study conducted by Marks & Kelly, which of the following is most likely to still be at close to peak level two hours after consumption?

A) cola
B) coffee
C) tea
D) none of these

Question 28

Caffeine's primary action is .

A) contraction of the heart
B) stimulation of CNS activity
C) elevation of basal metabolism
D) a stimulating effect on respiration

Question 29

What were the results of Lowe's 1988 study on the effects of the combination of alcohol and caffeine on state- dependent learning?

A) Alcohol was mostly responsible for the state-dependence effect.
B) Caffeine was mostly responsible for the state-dependence effect.
C) Alcohol and caffeine had an equal effect.
D) There was no effect on learning.

Question 30

Research has indicated that little tolerance to caffeine's develops.

A) renal function effects
B) stimulant effects
C) effects on sleep
D) all of these
E) stimulant effects or effects on sleep

Question 31

Tolerance to caffeine's effects on probably does develop.

A) renal function
B) sleep
C) both renal function and sleep
D) none of these. Tolerance to caffeine does not develop.

Question 32

Caffeine is excreted from the body mainly .

A) in the feces
B) in saliva
C) by the kidneys
D) in pure form

Question 33

After consumption, the concentration of caffeine is .

A) highest in the liver
B) highest in the kidneys
C) highest in the brain
D) similar throughout the body

Question 34

Cigarette smokers metabolize caffeine nonsmokers.

A) more quickly than
B) more slowly than
C) at the same rate as

Question 35

The does most of the metabolizing of caffeine.

A) pancreas
B) liver
C) kidneys
D) colon

Question 36

The most commonly reported symptom of withdrawal from caffeine is .

A) headaches
B) depression
C) decreased alertness
D) irritability

Question 37

How does caffeine affect eye-hand coordination?

A) increases
B) decreases
C) depends on the dosage
D) there is no effect

Question 38

Physical dependence to caffeine can develop .

A) almost immediately
B) after 3 consecutive days of regular use
C) after one month of regular use
D) physical dependence does not develop to caffeine

Question 39

Which of the following does not slow the process of caffeine metabolism and excretion?

A) cigarette smoking
B) liver disease
C) pregnancy
D) use of oral contraceptives

Question 40

How does caffeine affect the rapidity and accuracy of motor skills?

A) increases
B) decreases
C) depends on the dosage
D) there is no effect

Question 41

Although tea and cocoa have been used for centuries, coffee made its first appearance in the 17th century.

Question 42

Individuals who suffer from should be careful when using caffeine.

A) schizophrenia
B) alcohol dependence
C) depression
D) anxiety

Question 43

Caffeine metabolism and clearance is slower in people who have used caffeine over a longer period of time.

Question 44

Research has associated chronic caffeine use with .

A) elevated serum cholesterol level
B) birth defects
C) cancer
D) hypertension in women
E) all of these

Question 45

Caffeine has been used in a variety of medications to produce .

A) cerebral stimulation
B) diuresis
C) coronary constriction
D) all of these
E) cerebral stimulation and diuresis only

Question 46

Instant coffee contains more caffeine per serving than brewed coffee.

Question 47

Which of the following is used most frequently in medications?

A) caffeine
B) theophylline
C) theobromine
D) all are used equally

Question 48

European explorers in the fifteenth century were responsible for the introduction of caffeine into North America.

Question 49

The United States per capita caffeine consumption is double the world average.

Question 50

Physical dependence on caffeine has not been demonstrated.

Question 51

A medication for asthma is most likely to include .

A) caffeine
B) theophylline
C) theobromine
D) none of these

Question 52

Coffee consumption may help prevent .

A) liver disease
B) type 2 diabetes mellitus
C) Parkinson's disease
D) all of the above
E) none of the above

Question 53

It is difficult to find good estimates of the prevalence of caffeine use because it is consumed in so many different forms.

Question 54

A recent study indicates that an ingredient in coffee appears to protect against .

A) hypertension
B) peptic ulcer
C) liver cirrhosis
D) osteoporosis

Question 55

A medication intended to increase respiratory stimulation in premature infants would be most likely to include __________.

A) caffeine
B) theophylline
C) theobromine
D) none of these

Question 56

To date, the use of energy drinks by children has not been associated with any serious adverse events.

Question 57

The lethal dose of caffeine for adults is equivalent to cups of coffee.

A) 30
B) 50
C) 75
D) There have been no cases of death caused by caffeine overdose.

Question 58

Street drugs such as cocaine and heroin often contain caffeine as filler.

Question 59

Unlike most drugs, caffeine has always been well received by societies when it was introduced.

Question 60

Recent research has indicated that frequent coffee drinkers have a greater risk of dying from .

A) heart disease
B) stroke
C) infections
D) all of the above
E) none of the above

Question 61

Describe the absorption, distribution, metabolism, and excretion of caffeine.

Question 62

How does caffeine affect human task performance?

Question 63

What has research told us about the interactions among alcohol, caffeine, and nicotine?

Question 64

Caffeine is an effective means to reduce erotic desire.

Question 65

The U.S. Food and Drug Administration strictly monitors the caffeine content of energy drinks.

Question 66

How does caffeine affect mood and performance?

Question 67

Consuming an excessive amount of caffeine can produce symptoms such as ringing in the ears and seeing flashes of light.

Question 68

Combining Red Bull and alcohol reduces the harmful effects of alcohol on motor performance.

Question 69

Because of the infrequency of acute caffeine overexposure and the lack of adverse chronic effects of its use, caffeine is considered a relatively safe drug.

Question 70

One effect of caffeine use is mood-elevation.

Question 71

In reaction-time experiments, caffeine improves the decision-making part of the task but impairs the motor component.

Question 72

What are the acute and chronic toxic effects of caffeine?