Ch. 18: Digestive System - Animations

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Gastrin functions to increase the production of HCl in the stomach.

True

Which of the following enzymes is produced by the stomach?

pepsin

Involuntary muscle contractions which move a bolus through the gastrointestinal tract are called

peristalsis

What are proteins broken down into?

Amino acids

Which of the following enzymes is found in saliva?

Amylase

Which of the following is not an accessory organ of the digestive tract?

Anus

When chyme enters the duodenum, gastric secretion increases.

False

Which of the following organs does not contribute enzymes to the small intestine for the breakdown of food particles?

Gallbladder

Which transporters are responsible for transporting monosaccharides out of the cell?

Glucose

Which of the following is not part of the digestive tract?

Pancreas

Which transporters are responsible for transporting monosaccharides across the intestinal cell membrane into the cell?

Sodium glucose

After food is broken down by digestive enzymes and stomach acid it is called __________.

chyme

A baby's first set of teeth are called __________.

deciduous teeth

Lactase is a(n) __________ that breaks down __________ into easily absorbable simple sugars.

enzyme; lactose

Secretin is released from the duodenum in response to

hydrochloric acid in chyme.

Which of the following is part of the small intestine?

jejunum, ileum, and duodenum

Bile acid droplets are also known as __________.

micelles

Carbohydrates are broken down into several simple sugars called __________.

monosaccharides

Which of the following is the correct order for the major parts of the gastrointestinal tract?

mouth, esophagus, stomach, small intestine, large intestine

Hydrochloric acid is secreted in the

stomach

Which of the following may occur if the body is unable to produce the enzyme lactase?

The colon may swell due to an excess of fluid and gas.

The condition marked by an insufficient production of lactase is called __________.

lactose intolerance

What organ produces bile?

liver

Most nutrient absorption occurs in the

small intestine


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