BIO 220 Topic 7 Graded Quiz Latest

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BIO 220 Topic 7 Graded Quiz Latest

BIO 220 Topic 7 Graded Quiz Latest

BIO220

BIO 220 Topic 7 Graded Quiz Latest

Question 1

The enterogastric reflex can be triggered by

a. distention of the duodenal wall.

b. the presence of food in the stomach.

c. increased pH in the duodenum.

d. the cerebral cortex.

e. the hormone secretin.

Question 2

Where does the majority of nutrient absorption occur?

a. the stomach and duodenum

b. the duodenum and ileum

c. the jejunum and duodenum

d. the ileum and jejunum

Question 3

Arrange the following events in the order:

(1) absorption of lipids

(2) emulsification

(3) micelle formation

(4) digestion of lipids

a. 1, 2, 3, 4

b. 3, 4, 2, 1

c. 4, 1, 2, 3

d. 2, 4, 1, 3

e. 2, 4, 3, 1

Question 4

Which of the following is NOT a muscle of mastication?

a. temporalis

b. masseter

c. medial and lateral pterygoids

d. buccinator

Question 5

Enzymes secreted by the small intestine include

a. disaccharidases.

b. secretin.

c. cholecystokinin.

d. bile.

e. histamine.

Question 6

In comparison to a low-density lipoprotein (LDL), a high density lipoprotein (HDL) contains

a. less lipid.

b. less protein.

c. more cholesterol.

d. more carbohydrate.

e. more amino acids.

Question 7

Where is the uvula located?

a. on the hard palate

b. hanging in the fauces

c. lateral walls of the fauces

d. under the tongue

Question 8

The diagram illustrates an absorptive structure in the duodenum. What does “A” represent?

a. microvilli

b. epithelial cell

c. capillary

d. lacteal

e. villus

Question 9

Which of the following is an end product of protein digestion?

a. glucose

b. amino acids

c. LDL molecules

d. micelles

e. nucleic acids

Question 10

Which of the following is an accessory organ of the digestive tract?

a. pharynx

b. stomach

c. liver

d. large intestine

Question 11

In 0.00 points out of 2.50 The diagram illustrates an absorptive structure in the duodenum. What does “C” represent?

a. microvilli

b. epithelial cell

c. capillary

d. lacteal

e. villus

Question 12

The figure illustrates bile drainage. What does “A” represent?

a. hepatopancreatic ampulla

b. pancreatic duct

c. common hepatic duct

d. common bile duct

e. cystic duct

Question 13

The formation of HCl in the stomach involves the

a. active transport of hydrogen ions from parietal cells into the lumen of the stomach.

b. exchange of sodium ions for hydrogen ions in the transport process.

c. active transport of chloride ions from parietal cells into the lumen of the stomach.

d. exchange of sodium and bicarbonate ions.

e. the combination of carbon dioxide and water.

Question 14

Which of the following is NOT a type of propulsion in the digestive tract?

a. peristalsis

b. mass movement

c. deglutition

d. segmental contraction

Question 15

If the thoracic duct were tied off, which of the following classes of nutrients would not enter the circulatory system at their normal rate?

a. amino acids

b. glucose

c. lipids

d. disaccharides

e. monosaccharides

Question 16

What does “C” represent on the diagram?

a. small intestine

b. large intestine

c. esophagus

d. stomach

e. liver

Question 17

Which of the following lipoproteins contains the highest percentage of cholesterol?

a. LDL

b. HDL

c. VLDL

d. chylomicron

e. CDL

Question 18

The gallbladder

a. produces bile.

b. is attached to the pancreas.

c. stores bile.

d. produces secretin.

e. breaks down red blood cells.

Question 19

Which of the following is mismatched?

a. segmental contractions – mix intestinal contents

b. peristaltic contractions – propel intestinal contents along G.I. tract

c. sympathetic nerve fibers – increase intestinal motility

d. distention of intestinal wall – increases intestinal motility

e. parasympathetic nerve fibers – stimulate secretion of pancreatic juices

Question 20

Which of the following is NOT part of a portal triad?

a. hepatic artery

b. hepatic duct

c. hepatic portal vein

d. central vein