Digestive System

Question 1

Amylase is a digestive enzyme from the

a) stomach
b) pancreas
c) spleen
d) liver

Answer 1

b) pancreas

it is an enzme that catalyses the breakdown of starch in to sugars.

Question 2

Which hormone causes the pancreas to release an enzyme rich juice?

a) insulin
b) cholecystokinin

Answer 2

b) cholecystokinin

cholecystokinin is produced by the walls of the duodenum upon detection of acidic food, proteins and fats

Question 3

Which blood vessels do nutrients go to after leaving the SI?

a) inferior mesenteric vein
b) superior mesenteric vein

Answer 3

b) superior mesenteric vein

Question 4

Which of the following anchors the liver to the stomach?

a) lesser omentum
b) greater omentum

Answer 4

a) lesser omentum

Question 5

which of the following is not an accessory digestive organ?

a) lips
b) salivary gland
c) liver

Answer 5

a) lips

Question 6

the pancreatic duct transports secretions from the pancreas to the

a) duodenum
b) liver

Answer 6

a) duodenum

Question 7

What is the beginning of the LI called?

a) cecum
b) common bile duct

Answer 7

a) cecum

Question 8

Which of the following is classified as an enzyme?

a) protease
b) galactose

Answer 8

a) protease

Question 9

A damaged liver would predominantly affect the digestion of

a) lipids
b) carbohydrates

Answer 9

a) lipids

Question 10

is “ase” an enzyme or a sugar?

Answer 10

enzyme

Question 11

is ose a sugar or an enzyme?

Answer 11

sugar

Question 12

is maltase an enzyme or a sugar?

Answer 12

enzyme

Question 13

what does the suffix “ose” stand for?

a) sugar
b) enzyme

Answer 13

a) sugar

Question 14

what does the suffix “ase” stand for?

a) sugar
b) enzyme

Answer 14

b) enzyme

Question 15

any substance that is acted upon by an enzyme is called a

a) polypeptide
b) substrate

Answer 15

b) substrate

Question 16

one of the major functions of the LI is to

a) reabsorb 95% of ingested water
b) remove waste material

Answer 16

b) remove waste material

Question 17

In enzyme contolled reactions, the role of certain vitamins such as niacin is to act as

a) substrate
b) coenzyme

Answer 17

b) coenzyme

Question 18

Which of the following is not an accessory structure of the digestive system?

a) LV
b) SP

Answer 18

b) SP

Question 19

salivary amylase secreted into the oral cavity starts the digestion of

a) starch
b) lipids

Answer 19

a) starch

Question 20

how many pairs of salivary glands are there?

a) 4
b) 3
c) 5
d) 6

Answer 20

a) 4

Question 21

large mucosal folds formed when the stomach is empty are called?

a) the muscularis layer
b) rugae

Answer 21

b) rugae

Question 22

during digestion, proteins are broken down into molecules of

a) nucleic acids
b) amino acids

Answer 22

b) amino acids

Question 23

Parietal cells in the lining of the ST secrete?

a) regulatory hormones
b) HCl and instrinic factor

Answer 23

b) HCl and instrinic factor

Question 24

which muscles protrude and retract the tongue, moving it from side to side?

a) extrinsic tongue muscles
b) intrinsic tongue muscles

Answer 24

a) extrinsic tongue muscles

Question 25

bile is produced in the a) LV b) ST

Answer 25

a) LV

Question 26

all of the following are substances found in pancreatic juice EXCEPT a) pepsin b) lipase

Answer 26

a) pepsin

Question 27

where does the most nutrient absorption occur? a) duodenum and jejunem b) LI and ileum

Answer 27

a) duodenum and jejunem

Question 28

the final portion of the SI is the a) colon b) ileum

Answer 28

b) ileum

Question 29

The LV, GB and pancreas are connected to ducts which enter the a) duodenum b) ileum

Answer 29

a) duodenum

Question 30

What is the pyloric pump? a) chyme moving from teh ST into the SI b) food movement through the esophagus into the ST

Answer 30

a) chyme moving from the ST into the SI