About ______of the nicotine in a cigarette is actually inhaled and reaches the bloodstream.
A) 1 percent
B) 5 percent
C) 20 percent
D) 70 percent
Correct Answer:
Verified
Q137: The principal reason a lit cigarette gets
Q138: Carbon monoxide is _.
A)tasteless
B)odorless
C)colorless
D)all of the above
Q139: Mainstream smoke from a filtered cigarette _.
A)is
Q140: Carbon monoxide is the principal reason for
Q141: One of the effects of the stimulation
Q143: Which ingredient found in cigarettes is also
Q144: Nicotine stimulates _ receptors in the CNS.
A)endorphin-sensitive
B)nicotinic
C)serotonin-sensitive
D)GABA-sensitive
Q145: David has been a smoker for many
Q146: When nicotine receptors are activated,_.
A)blood pressure becomes
Q147: Tar allows _.
A)carcinogens to attack the immune
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