samathapalao21

1. _____The primary function of the large intestine is…

A) mechanical digestion of food particles

B) chemical digestion of food particles

C) absorption of digested nutrients

D) absorption of water

E) storage of bile

2._____Although enormous quantities of various enzymes are added to the contents of the duodenum of the small intestine, no traces of enzyme activity are left in the intestinal contents when they pass into the large intestine (colon). Which of the following is most likely to explain this observation?

A) The enzymes are inactivated by the extremely low pH found in the ileum

B) The enzymes are inactivated by the high pH found in the ileum

C) The enzymes are inactivated by the low pH found in the jejunum

D) The enzymes pass through the digestive system very rapidly and are eliminated at high concentrations in fecal material.

E) Those enzymes are also digested and reabsorbed by the small intestine

3._____ Which of the following is transported from the small intestine to the remainder of the body by the lymphatic system?

A) carbohydrates

B) fats

C) nucleic acids

D) proteins at high concentrations in fecal material.

E) polysaccharides

4. Compare and contrast single circulation and double circulation.

Why are AgNo3 and KSCN not primary standard substance?

1. Identify the correct statement with reference to human digestive system.

(a) ileum opens into small intestine.

(b) Serosa is the innermost layer of the alimentary canal.

(c) ileum is a highly coiled part.

(d) Vermiform appendix arises from duodenum