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People who are engaged in boring,repetitive tasks find that caffeine improves their performance.

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Theophylline is a preferred antiasthma medication to caffeine because __________.


A) it has a stronger bronchodilating effect
B) it can be prescribed at very high doses
C) the side effect of "jitteriness" is more pronounced
D) people react better to tea as medication than to coffee

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In general,what is NOT affected by the ingestion of caffeine?


A) behavioral consequences of alcohol intoxication
B) the risk of cardiovascular disease
C) the time it takes to fall asleep
D) performance of boring or repetitive tasks

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According to the text,recent evidence shows that chocolate may protect arteries from disease.

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During the 1700s,____ helped moderate the widespread drunkenness in England.


A) tea production
B) coffee houses
C) taverns
D) none of the above

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Caffeine consumption in young people can aid in the treatment of __________.


A) attention deficit hyperactivity disorder
B) autism
C) panic attacks
D) calcium deficiency

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Currently,caffeine consumption is suspected to be linked to __________.


A) infertility
B) infertility and low birthweight
C) low birthweight and miscarriage
D) irritable bowel syndrome

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Analogy: Cocoa bean pods are to chocolate as coca leaves are to __________.


A) cola
B) caffeine
C) theobromine
D) cocaine

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_________ in young people is about one-half to two-thirds that of an adult.


A) Intelligence
B) Body weight
C) Awareness of the availability of caffeinated beverages
D) Bronchodilation

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The lethal dose for caffeine in the adult ranges from __________.


A) 500 to 1,000 milligrams
B) 5,000 to 10,000 milligrams
C) 1,000 to 2,000 milligrams
D) 25,000 to 50,000 milligrams

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B

Which of the following is NOT a natural source of caffeine?


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

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The best way of describing caffeine,theobromine,and theophylline is to call them __________.


A) CNS depressants
B) trichloroethylenes
C) xanthines
D) theothixines

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C

Tony has been drinking heavily at the bar and is drunk.Before going home,his friends give him a big cup of strong black coffee.After drinking the coffee,Tony can expect __________.


A) to get sober faster
B) the effects of alcohol to possibly worsen
C) to perform decision-making tasks effectively
D) to have increased motor coordination

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The DSM-5 recognizes caffeinism-like symptoms under this term: __________.


A) caffeine abuse
B) caffeine intoxication
C) caffeine dependence
D) caffeinism disorder

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Before the end of the nineteenth century,the Chinese traded their tea with the British in exchange for __________.


A) coffee
B) opium
C) marijuana
D) alcohol

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Tolerance to caffeine can generally be observed in terms of __________.


A) muscular rigidity
B) cancerous tumors
C) cardiovascular changes
D) EEG changes

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C

Over-the-counter caffeine medications sold as stimulants contain caffeine levels roughly equivalent to __________.


A) three to four cups of regular coffee
B) four to six cups of regular coffee
C) one-third cup to two cups of regular coffee
D) one-eighth to one-fourth cup of regular coffee

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In a recent study of possible performance-enhancing effects among competitive cyclists,it was found that caffeine administration increased their performance during timed trials overall,but the effect was greater when the cyclists were (falsely)informed that they had not ingested it.

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The effects of caffeine on the brain begin at the level of the__________.


A) cerebellum
B) medulla
C) cerebral cortex
D) limbic system

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Caffeine can sober up a person who is drunk.

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