BIOL 1322: Chapter 3

4. Absorption occurs when nutrients and other substances:

Are removed from the lumen of the GI tract to enter the bloodstream or lymphatic system.

17. Which of the following choices CORRECTLY identifies a food as either a prebiotic or a probiotic?

Buttermilk—probiotic

15. There is essentially no absorption of _____ in the large intestine.

Carbohydrates

20. Which of the following is NOT true of celiac disease?

Celiac disease only affects the small intestine.

1. Which of the following is the correct order of the body's organization from smallest to largest?

Cells, tissues, organs, organ systems

3. When you eat a cheeseburger, the burger, cheese, and bun are broken down into tiny particles, releasing nutrients and other food components. This process is called:

Digestion

7. Which of the following is NOT true of enzymes?

Enzymes are unaffected by acidic conditions.

19. Which of the following CORRECTLY matches the digestive disorder with its description and/or cause?

Inflammatory bowel disease—may cause open wounds (ulcers) to develop in the GI tract

6. Which of the following is NOT characteristic of peristalsis?

Its primary responsibility is to mix the contents in the GI tract with digestive fluids.

9. Which of the following does NOT correctly identify a function of fluids produced by the listed organ?

Liver—carbohydrate digestion

5. Which of the following CORRECTLY matches an organ of the digestive system with one of its primary functions?

Pancreas—produces enzymes that digest fats, proteins, and carbohydrates

16. Which of the following is NOT true of bacteria in the large intestine?

Probiotics assist in absorbing carbohydrates and amino acids.

10. The majority of chemical digestion occurs in the:

Small intestine

11. Which organ of the GI tract has villi?

Small intestine

18. All of the following about gastroesophageal reflux disease (GERD) are true EXCEPT:

Symptoms are controlled by eating large meals.

12. Which of the following is NOT true about the small intestine?

The duodenum, jejunum, ileum, and cecum are sections of the small intestine.

13. Which of the following is TRUE of transporters?

The only transport mechanism that requires energy is active transport.

2. Which statement is NOT true regarding the body's organization from the smallest to the largest?

The small intestine is a tissue that makes up an organ.

8. The majority of mechanical digestion occurs in:

The stomach

14. Which of the following statements is NOT true of the circulatory system and its transport of nutrients?

Water-soluble nutrients leave the small intestine via lymph.