24) Which of the following is a feature of caffeine use in physical activity?
a.Caffeine is widely abused by endurance athletes because it cannot be detected by
blood or urine tests
b.Caffeine enhances performance by stimulating glycogen breakdown and increasing
the oxygen-carrying capacity of red blood cells
c.College and national competitions prohibit the use of caffeine in amounts greater than
that present in 5 cups of coffee when consumed within a few hours before testing
d.The usual side effects of caffeine use such as irritability, headaches, and diarrhea are
delayed or diminished in endurance athletes because of their high metabolic rates
during competition
25) Jenny is trying to lose weight by decreasing the fat in her diet. At the grocery store
she is overwhelmed by all the claims on the food product labels, and finally chooses an
expensive fat-free frozen dessert. Which of the following would be an appropriate
analysis of Jennys decision?
a.Most frozen desserts are fat free and she should not pay extra for one with a fat-free
claim
b.Since fats contribute 9 kcalories per gram, she can eat twice as many kcalories from
this dessert and still lose weight
c.As long as she makes sure to eat the dessert before 9 p.m. it should not contribute
much to her daily kcaloric intake
d.Fat-free products typically have so much added sugar that the kcalorie count can be as
high as in the regular-fat product
26) Jim went for his annual medical check-up and was diagnosed with heartburn.
Which of the following actions is most likely causing Jims condition?
a.Inhibition of peristalsis
b.Overactive cardiac sphincter activity
c.Overactive pyloric sphincter activity
d.Defective lower esophageal sphincter activity
27) What type of diet is advised to rehabilitate a severely malnourished child?
a.RUFT
b.High protein