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Explain the effects that caffeine has on the central nervous system.

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Caffeine blocks the brain's receptors fo...

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In 2009,Americans consumed more gallons of coffee than of soft drinks.

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Caffeine has been shown to be an effective treatment for


A) migraine headaches.
B) anxiety.
C) narcolepsy.
D) panic disorder.

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One important determinant of the behavioral effects of caffeine is


A) whether it is consumed in a pill or as coffee.
B) whether the person is a regular user.
C) the temperature of the beverage (hot or cold) .
D) the acidity of the coffee.

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The maximum CNS effect of caffeine is reached about _____ after drinking coffee.


A) 15 minutes
B) 30 minutes
C) 2 hours
D) 4 hours

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In 1970,Americans drank more coffee than any other nonalcoholic beverage product.By 2009,


A) per capita coffee consumption had doubled.
B) Americans drank approximately twice as many gallons of soft drinks as compared to coffee.
C) more tea was consumed than coffee.
D) energy drinks were more popular than coffee.

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The main active ingredient in Red Bull and other energy drinks is


A) taurine.
B) caffeine.
C) guanine.
D) tyrosine.

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A typical cup of brewed tea contains just under half as much caffeine as a typical cup of brewed coffee.

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Describe how and why the American revolution changed consumption of tea and coffee in America and in England.

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Tea was the first popular caffeine drink in the U.S.Tea taxes led to the "Boston Tea Party," a rejection of tea shipments that helped lead up to the revolution.Americans then began to drink more coffee and less tea.The English drank more tea as a show of support for the crown.

There are no consistent documented withdrawal symptoms from caffeine.

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Often people who drink too much alcohol attempt to "sober up" by drinking coffee.Several studies support the idea that caffeine


A) blocks alcohol's effect at GABA receptors.
B) lowers BAC by increasing urine output.
C) improves coordination and speed of reaction after drinking alcohol.
D) is likely to lead to increased arousal,but the drinker is still impaired.

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In the 18th century,English coffeehouses were referred to as


A) dens of iniquity.
B) penny universities.
C) health clinics.
D) Starbucks.

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A 12-oz.Pepsi or Coke contains more caffeine than a Vivarin tablet.

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Most American coffee comes from China.

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_____________ is prescribed to asthma sufferers because it relaxes bronchial passages.


A) Camellia sinensis
B) Theobromine
C) Exanthine
D) Theophylline

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The most consistent withdrawal symptom after chronic caffeine use is


A) headache.
B) drowsiness.
C) nervousness.
D) inability to sleep.

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A

In 1909,the FDA seized some Coca-Cola syrup and filed charges against the company partly because


A) the syrup contained cocaine.
B) the syrup formula was secret.
C) of the toxins in kola nuts.
D) the syrup contained caffeine.

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The largest exporters of coffee to the U.S.are


A) Vietnam,Indonesia,and Thailand.
B) Singapore and Myanmar.
C) Colombia,Brazil,Guatemala,and Mexico.
D) Panama,Honduras,and Chile.

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Drinking 5 or more cups of coffee per day


A) actually reduces the rate of heart attacks.
B) slightly increases the risk of a heart attack.
C) doubles the risk of a heart attack.
D) increases heart attack risk only in smokers.

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A single species of tea bush is the basis for traditional green,black,and oolong tea.

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