IRAT 4

Question 1

Which process would be affected by a diseased gallbladder
A. fat digestion 
B. chyme formation
C. carbohydrate buffering 
D. regulation of blood glucose levels 
E. amino acid deamination

Answer 1

A.

Question 2

Formation of the ______ takes place in the mouth

A. rugae

b. bolus
c. chyme
d. bile
e. gastrate

Answer 2

B

Question 3

a series of wavelike muscular contractions that promote movement of digesta is called:

a. hydrolysis
b. catabolism
c. oscillatory mixing
d. segmentation
e. peristalsis

Answer 3

E

Question 4

___ are protein molecules that accelerate the rate of chemical reactions

a. hormones
b. mucus.
c. chyme
d. enzymes
e. t cells

Answer 4

D

Question 5

the absorptive surface of the small intestine is increased by the presence of….

a. sphincters
b. microvilli
c. lymph vessels (lacteal)
d. gastric pits
e. intrinsic factors

Answer 5

B

Question 6

heartburn is typically….

a. caused by acidic stomach contents leaking into the esophagus
b. caused when the stomach bulges through he pyloric sphincter
c. more common in men and those who are underweight
d. more serious than GERD
e. all answer choices are correct

Answer 6

A

Question 7

beneficial bacteria found in some foods are called

a. colonicbacillus
b. rubiobiotics
c. prebiotics
d. probiotics
e. both c and d

Answer 7

D

Question 8

BONUS

a food allergen would be a…

a. protein
b. lymphocyte
c. carboxylase
d. enzyme

Answer 8

A. Proteins called antigens are harmful substances that are engulfed by phagocytes and destroyed by antibodies

Question 9

the pancreas secretes pancreatic juice which contains digestive enzymes and….

a. bicarbonate ions
b. bile
c. cholescystokinin CCK
d. chyme
e. intrinsic factor

Answer 9

A

Question 10

the most common cause of ulcers is…

a. stress
b. eating fatty foods
c. helicobacter pylori ( h pylori) infection
d. the pain reliever tylenol
e. spicy food

Answer 10

C

Question 11

gastric lipase is an enzyme that is produced in the stomach to…

a. stimulate CCK and intrinsic factor
b. to stimulate secretion of gastric juices
c. break down of carbohydrates
d. break down of proteins
e. break down of fats

Answer 11

E

Question 12

Most fat-soluble nutrients are absorbed into the 
A. vascular system 
B. lymphatic system
C. neurological system
D. adrenal system
E. transit system

Answer 12

B.

Question 13

The sections of the small intestine, in proximal to distal order are:
A. duodenum, jejunum, ilium, cecum
B. ilium, duodenum, jejunum, cecum
C. duodenum, ilium, jejunum

Answer 13

A.

Question 14

The stomach wall is protected from the acidity of the gastric juice by 
A. the bacteria Helicobacter pylori
B. the hormone gastrin
C. the enzyme pepsin
D. chief cells 
E. a viscous mucus layer

Answer 14

E.

Question 15

For a patient who is unable to swallow and has a stomach disorder, which feeding method is recommended 
A. total parenteral nutrition 
B. antacid treatment 
C. tube-feeding 
D. epiglottal message

Answer 15

A.

Question 16

Which of the following statements is true?
A. heartburn results from the occasional reflux of gastric material through the pyloric sphincter
B. GERD results from occasional reflux of gastric material through the gastroesophageal sphincter
C. GERD results from chronic reflux of gastric material through the pyloric sphincter
D. Heartburn results from occasional reflux of cyme through the pyloric sphincter
E. Heartburn results from the occasional reflux of gastric material through the gasteroesophageal sphincter

Answer 16

E.

Question 17

Which of the following is NOT one of the main processes that allow nutrients to be absorbed from the GI tract into circulation? 
A. passive diffusion 
B. facilitated diffusion 
C. active diffusion 
D. active transport

Answer 17

C.

Question 18

Which of the following meals is likely to stay in the stomach the longest?
A. Grilled chicken, mashed potato made with milk, green beans, skim milk
B. Cheeseburger, small french fries, small soft drink, ice cream
C. Tuna sandwich on whole wheat, pickle, ice tea
D. Rice krispies, skim milk, blueberries, coffee
E. Thick squash soup with bread, coffee with soy milk and honey

Answer 18

B.