Which of the following statements about caffeine is true?Group of answer choicescaffeine is absorbed into the bloodstream from the digestive system (stomach and small intestine) in 30-60 min.caffeine has a half-life that averages about 8 hours.caffeine accumulates over the day, with significant amounts remaining in the bloodstream the following morning.caffeine is metabolized more slowly in smokers.

When a person ingests caffeine, whether in the form of a cup of coffee or tea, a caffeinated soft drink or even a piece of dark chocolate, the drug begins to take effect almost immediately. First, caffeine enters the bloodstream through the membranes of the stomach and small intestine. It is then metabolised by the liver, which breaks it down into other chemicals. Within fifteen minutes of consumption, most people begin to feel the effects of caffeine, which can include increased heart rate and feelings of alertness or well-being. Within six hours of consumption, about half of the original dose of the drug will have been eliminated from the body. This is why some people drink a second cup of coffee in the afternoon.Which organisational structure does this text primarily use?

It takes _____ hours for 95% of caffeine consumed to be excreted.76-1201-2100-11None of the above

A cup of coffee contains about 100 𝑚𝑔 of caffeine. Caffeine is metabolized and leaves the bodyat a continuous rate of about 17% every hour. Write a differential equation for the amount, 𝐴,of caffeine in the body as a function of the number of hours, 𝑡, since the coffee was consumed

Caffeine can safely be consumed in amounts greater than 500 mg/day.Group of answer choicesTrueFalse

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.