If not accompanied by hypertension, edema in pregnancy generally reflects a healthy expansion of plasma volume
a. True
b. False
Indicate whether the statement is true or false
True
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Zelda is a marathon runner. She completes the marathon in 2 hours and 30 minutes. Which of the following is true regarding her fuel use during the marathon?
A. If she runs out of muscle glycogen at the 2-hour mark, she will not feel fatigue. B. Amino acids may supply up to 10% of energy needs. C. Anaerobic glucose breakdown, using muscle glycogen, will provide most of the ATP for the marathon. D. Liver glycogen is the preferred fuel during intense muscular activity lasting less than 2 hours.
John-Paul is a runner with his high-school cross-country team. The team regularly goes on 1- to 1.5-hour training runs in preparation for the cross-country meets. Carbohydrates are the most important fuel for the high-intensity runs lasting over an hour.
Answer the following statement true (T) or false (F)
The lower esophageal sphincter is responsible for:
a. allowing chyme to enter the stomach. b. preventing gastric contents refluxing into the esophagus. c. adding digestive juices to the bolus of food as it descends the esophagus. d. allowing intermittent amounts of stomach contents to enter the duodenum.
On a gram for gram basis, protein has approximately the same amount of energy as:
a. carbohydrate. b. fat. c. alcohol . d. minerals.