After consuming a slice a pizza, carbohydrate digestion will begin in the mouth, and then continue in the small intestine. Why does carbohydrate digestion cease in the stomach??
A) ?Salivary carbohydrases do not function in an acidic environment.
B) ?Gastric juices digest fats only, not carbohydrates or protein.
C) ?Salivary carbohydrases are activated from zymogens only in the intestine.
D) ?Carbohydrates are digested only by mastication, not by enzymatic hydrolysis.
A
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Overconsumption of fat-soluble vitamins is more likely to be toxic than overconsumption of water-soluble vitamins
Indicate whether the statement is true or false
Alex is a competitive endurance athlete who weighs 90 kg. He would like to plan a nutritionally adequate diet that provides enough carbohydrate to maintain his weight and glycogen stores during training. According to expert recommendations, he should consume ________ grams of carbohydrate daily while in training.
A. 480 to 800 B. 540 to 900 C. 580 to 1000 D. 420 to 700
Water-soluble nutrients stored in blood are routed directly from the small intestine through the
portal vein to the A) heart. B) lungs. C) liver. D) pancreas.
Which of the following recommendations for pregnant women and alcohol intake has been issued by the U.S. Surgeon General?
a. They should drink absolutely no alcohol b. They should refrain from drinking hard liquor only c. They are permitted to ingest no more than 2 drinks per day d. They are permitted to ingest small amounts of alcohol during the first 3 months but none thereafter