3rd 10

Question 1

blank is a mixture of food and digestive juices that is produced in the stomach.

Answer 1

Chyme

Question 2

The stomach is separated from the small intestine by the Blank blank.

Answer 2

pyloric sphincter.

Question 3

In the small intestine, chyme mixes with blank, which emulsifies fats.

Answer 3

bile

Question 4

The blank is also the major site for protein digestion in animals other than ruminants.

Answer 4

Stomach

Question 5

Protein digestion is mediated by an enzyme called blank in the stomach chamber. THIS is secreted by the chief cells in the stomach in an inactive form
called blank

(1) breaks peptide bonds and cleaves proteins into smaller polypeptides; it also helps activate more (2) starting a positive feedback mechanism that generates more (1)

Answer 5

pepsin
pepsinogen

Question 6

Another cell type—blank blank—secrete hydrogen and chloride ions, which combine in the lumen to form blank, the primary acidic component of the stomach juices.

Answer 6

parietal cells
hydrochloric acid (helps to convert the inactive pepsinogen to pepsin.)

Question 7

Chemical digestion is facilitated by the churning action of the stomach. Contraction and relaxation of smooth muscles mixes the stomach contents
about every X minutes.

Answer 7

20 mins

Question 8

Gastric emptying occurs within x to x hours after a meal. Only a small amount of chyme is released into the small intestine at a time.

Answer 8

two to six hours

Question 9

The movement of chyme from the stomach into the small intestine is regulated by the blank blank.

Answer 9

pyloric sphincter.

Question 10

these are open wounds in or on an organ caused by bacteria (Helicobacter pylori) when the mucus lining is ruptured and fails to reform.

Answer 10

Ulcers