Digestive system QMP

Question 1

In addition to storage and mechanical breakdown of food, the stomach:

is the only place fats are digested

in the first place the chemical digestion of starch takes place

produces water

is the first place that absorption takes place

initiates protein digestion

Answer 1

initiates protein digestion

Question 2

What is BMI

a measure of adipocytes

a measure for indicating nutritional status in adults

a measure of hormone levels in the body

a measure of total amount of protein in the body

Answer 2

a measure for indicating nutritional status in adults

Question 3

In adult humans, all of the following are functions of the liver except

synthesis of bile salts

activation of vitamin D

red blood cell production

excretion of bilirubin

storage of vitamins

Answer 3

red blood cell production

Question 4

Pepsinogen, a digestive enzyme is secreted by the:

cheif cells of the stomach

goblet cells of the stomach

brunner glands

salavary glands in the mouth

parietal cells of the duodenum

Answer 4

cheif cells of the stomach

Question 5

Which of the following occur during the intestinal phase of digestion

Cholecystokinin inhibits gastric emptying

Secretion stimulates the flow of pancreatic juice rich in bicarbonate

Gastrin stimulates increases in the release of gastric juice

More than on of these events occurs

None of these events occur

Answer 5

More than on of these events occurs

Question 6

Which of the following is not a phase of gastric secretion

cephalic

gastric

enterogastric

intestinal

Answer 6

enterogastric

Question 7

When fats are not needed for catabolism they are anabolized to form triglycerides and stored in?

Adipose tissue

The lungs

All cells

The liver

Bone

Answer 7

Adipose tissue

Question 8

Body needs fat in the right amounts primarily for:

Cell growth, repair and to build tissues

Digestion

Detoxification

Bone growth and healing

Answer 8

Cell growth, repair and to build tissues

Question 9

Which of the following is specific for proteins?

trypsin

lipase

amylase

dextrinase

Answer 9

trypsin

Question 10

The digestion of proteins into peptides starts in the

ileum

stomach

oesophagus

duodenum

oral cavity

Answer 10

stomach

Question 11

Digestion of which of the following would be affected most by damage to the liver:

carbohydrates

proteins

lipids

nucleic acids

all of the above

Answer 11

lipids

Question 12

Protein translation inside cells is carried out on

smooth endoplasmic reticulum

Golgi complexes

ribosomes

lysosomes

mitochondria

Answer 12

ribosomes

Question 13

The intestinal villi are found in which of the layers of the alimentary canal?

adventitia

mucosa

skin

serosa

lamina prpria

Answer 13

mucosa

Question 14

The mechanical and chemical RECEPTORS that control digestive activity are located :

in the glandular tissue that lines the organ lumen

in the walls of the tract organs

in the pons and medulla

in the oesophagus because it is the only part of the tract that needs to change to accomodate food passage

in the colon

Answer 14

in the walls of the tract organs

Question 15

You have just eaten a meal high in carbohydrates. Which of the following enzymes help you to digest the meal?

gastrin

pepsin

amylase

trypsin

cholesscystokinin

Answer 15

amylase

Question 16

As food is repeatedly squeezed and mixed in the stomach, itis converted to a creamy paste called:

bile

chyme

a bolus

saliva

faeces

Answer 16

chyme

Question 17

The layer of the GI tract wall containing networks of enteric neurons that control the secretory activity of the GI tract is called the

mucosal epithelium

serosa

muscularis mucosa

submucosa

lamina propria

Answer 17

submucosa

Question 18

Parietal cells of the stomach produce:

rennin

mucin

pepsinogen

hydrochloric acid

amylase

Answer 18

hydrochloric acid

Question 19

The small intestinal enzyme that catalyzes the hydrolysis of milk sugar into a glucose and galactose is called

sucrase

maltase

ribonuclease

amylase

lactase

Answer 19

lactase

Question 20

Obesity is:

BMI> or equal to 30

BMI> or equal to 25

BMI> or equal to 35

BMI> or equal to 20

Answer 20

BMI> or equal to 30

Question 21

Where does digestion of carbohydrates, under the influence of the enzyme salivary amylase, start?

The stomach

The mouth

The large intestine

The Duodenum

The Jejunum

Answer 21

The mouth

Question 22

Chemical digestion reduces large complex molecules to simpler compounds by the process of:

catabolism

anabolism

mastication

absorption

fermentation

Answer 22

catabolism

Question 23

The terminal portion of the small intestine is the :

pyloric sphincter

ileum

duodenum

jejunum

caecum

Answer 23

ileum

Question 24

Absorption of digested nutrients and water in the small intestine occurs by

osmosis

facilitated diffusion

active transport

diffusion

all of the choices are correct

Answer 24

all of the choices are correct

Question 25

The first portion of the large intestine is called the

rectum

sigmoid colon

cecum

transverse colon

ascending colon

Answer 25

cecum

Question 26

The entry of bile and pancreatic juice into the duodenum is controlled by:

the common pancreatic duct

the anal sphincter

the sphincter of Oddi

sinusoids of the liver

the central vein

Answer 26

the sphincter of Oddi

Question 27

Hydrochloric acid is secreted by which cells of the stomach?

mucous neck cells

parietal cells

mucous cells

chief cells

serous cells

Answer 27

parietal cells