Tolerance to the stimulant effects of caffeine is due toGroup of answer choicesdown-regulation of adenosine receptorsup-regulation of adenosine receptorsdesensitization of adenosine receptorssensitization of adenosine receptors

Which statement about adenosine is false? Group of answer choicesIt is expressed in many brain regionsIt builds up during wakefulness, creating a state of drowsiness.It acts on four different receptor subtypes.It is released by caffeine.

The ergogenic effect of caffeine appears to be due to inhibition of the central nervous system. increased calcium stored in the sarcoplasmic reticulum. increased glycogen stored in the liver. an increase in free fatty acids for fuel use.

Caffeine influences the monamine systems as strongly as cocaine and amphetamines.Group of answer choicesTrueFalseNo answer text provided.No answer text provided.

What is the molecular formula for Caffeine?

hich of the following is true of the effect of caffeine on the nervous system?Multiple ChoiceIt increases relaxation.It increases attentiveness.It causes a drop in heart rate.It increases reaction time.