Download nutri ch 3 quiz

Chapter 3- The Basics of Digestion Take-Home Quiz
True or False.
1. The digestive system breaks food down into absorbable units that enter the blood for
distribution the body cells; indigestible foodstuffs are eliminated as feces.
2. The small intestine is at least 20 feet long (possibly up to 30 feet or 9 meters long) and divided
into 3 sections: the duodenum, the cecum, and the ileum.
3. Bile produced in the pancreas helps in the digestion and absorption of fats.
4. The presence of fat tends to enhance the flavor of food.
5. The hypothalamus is stimulated by insulin, a hormone secreted by the pancreas, to signal the
brain that you are “full” of carbohydrates.
Multiple Choice:
6. The process that converts whole foods into simple nutrients is called
A. absorption.
B. digestion. C. ingestion.
D. elimination.
7. Which of the following is NOT involved in mechanical digestion?
A. chewing B. grinding C. enzymes D. peristaltic movement of food
8.
Hydrochloric acid has all the following digestive functions EXCEPT
A. activation of the enzyme pepsin.
B. breakdown of connective tissue in meat.
C. neutralization of stomach acid.
D. destruction of some ingested microorganisms.
9.
Which is NOT true regarding saliva?
A. It helps dissolve small food particles.
B. It allows us to comfortably swallow dry food.
C. We each produce 1 to 1.5 liters every day.
D. It provides the enzyme that begins protein digestion.
10. The sphincter between the stomach and the small intestine is the
A. ileocecal sphincter.
C. lower esophageal sphincter.
B. upper sphincter.
D. pyloric sphincter.
11. Which of the following correctly sequences the segments of the small intestine?
A. duodenum; jejunum; ileum
C. ileum; colon; jejunum
B. jejunum; ileum; duodenum
D. ileum; esophagus; colon
12. Which of the following does NOT occur in the colon?
A. absorption of water
C. absorption of the majority of nutrients
B. production of some vitamins
D. absorption of electrolytes
13. The ________ produces bile and the ________ stores it.
A. pancreas; bladder
C. gallbladder; pancreas
B. liver; gallbladder
D. gallbladder; liver
14. Which of the following foods leaves the stomach first?
A. carbohydrates B. fats C. protein D. fiber
15. All of the following belong to the five basic categories of taste are sweet, salty, sour, bitter and
__________________.
A. sweet
B. moldy C. acrid D. umami
16. When the food is chewed and mixed with saliva it is called a ________.
A. chyme
B. bolus
C. pylorus
D. fundus
17. The stool is stored in the final part of the large intestine, called the ________.
A. appendix
B. anus
C. rectum
D. colon
18. What substance produced by the stomach acts as a barrier to protect the stomach lining from
irritation or damage from hydrochloric acid.
A. bicarbonate B. mucus
C. bile
D. pepsin
19. The brain seeks pleasure which often influences our choices and cravings for__________.
A. fats
B. sweet
C. bitter
D. creamy
Short Answer:
20. What part of the brain signals us that you are hungry and should eat?
21. Label the organs of the digestive tract.
Extra Credit: (spelling can be off by a letter or two) 1 pt. LES