Barton Community College LIFE 1402 Class 2 1)Incomplete digestive system a

Barton Community College

LIFE 1402

Class 2

1)Incomplete digestive system

a.Are characterized by a single opening through which food enters and waste is emitted

b.            Occurs in flatworms

c.             Have specialized organ systems

d.            All of the above are correct

e.            A and B above, but not C

2.            In which organ of the digestive system does most of the digestion and absorption of nutrients occur?

a.            Large intestine

b.            Stomach

c.             Small intestine

d.            Liver

e.            Gall bladder

3.                            Suppose you just ate a big plate of tuna (Sushi). The carbohydrate in the rice is digested in the  and fats in the tuna are digested in the          .

a.            Mouth and small intestine; gall bladder

b.            Stomach and small intestine; small intestine

c.             Mouth and small intestine; small intestine

d.            Small intestine; large intestine

4.                           is an example of an essential nutrient, and is classified as a          .

a.            Biotin;    mineral b.  Selenium; mineral

c.             Protein; vitamin

d.            Thiamine; mineral

e.            All of the above are correct

5.                           increase the surface are of the small intestine and function to    .

a.            Mucous and chief cells; keep food moving through the small intestine

b.            Villi and microvilli; keep food moving through the small intestine

c.             Mucous and chief cells; absorb nutrients from digested food

d.            Villi and microvilli; absorb nutrients from digested food

6.            Most of the digestive enzymes used in the small intestine come from the            .

a.            Small intestine b. Stomach

c.             Pancreas

d.            Liver

e.            Salivary glands