Deck 11: Caffeine

Question 1

The world's greatest per-capita consumers of tea are found in:

A) China.
B) France.
C) Canada.
D) Turkey.

Answer 1

Turkey.

Question 2

The result of grinding the kernels of a cacao plant is a thick liquid called ________.

A) chocolate liquor
B) couverture chocolate
C) compound chocolate
D) candy clay

Answer 2

chocolate liquor

Question 3

________ is a Greek word meaning "yellow,"the color of the residue that remains after the substance is heated with nitric acid until dry.

A) Thioxanthone
B) Tyrosine
C) Guanine
D) Xanthine

Answer 3

Xanthine

Question 4

Which of the following xanthines has almost no stimulant effect on the central nervous system and the skeletal muscles?

A) Caffeine
B) Theobromine
C) Theophylline
D) Paraxanthine

Question 5

Which of the following statements is true of the physiological effects of caffeine?

A) The pharmacological effects on the central nervous system (CNS) and the skeletal muscles are probably the basis for the wide use of caffeine-containing beverages.
B) With two cups of coffee taken close together (about 200 mg of caffeine), the cortex is deactivated, the electroencephalography (EEG) shows a calming pattern.
C) In the absence of tolerance, even 200 mg of caffeine will decrease the time it takes to fall asleep and will cause hypersomnia.
D) Lower dose levels of caffeine affect the autonomic centers of the brain, and heart rate and respiration can increase at this dose.

Question 6

The physiological actions of theobromine are closely parallel those of caffeine, but it is much less potent in its effects on the central nervous system.

Question 7

There is a strong relationship between the mood-elevating effect of caffeine and the extent to which it will keep an individual awake.

Question 8

Differentiate between the two species of coffee, namely caffea Arabica and caffea robusta.

Question 9

Discuss briefly the different types of tea.