Digestive system QMP Flashcards
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
initiates protein digestion
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
a measure for indicating nutritional status in adults
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
red blood cell production
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
cheif cells of the stomach
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
More than on of these events occurs
Which of the following is not a phase of gastric secretion
cephalic
gastric
enterogastric
intestinal
enterogastric
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
Adipose tissue
Body needs fat in the right amounts primarily for:
Cell growth, repair and to build tissues
Digestion
Detoxification
Bone growth and healing
Cell growth, repair and to build tissues
Which of the following is specific for proteins?
trypsin
lipase
amylase
dextrinase
trypsin
The digestion of proteins into peptides starts in the
ileum
stomach
oesophagus
duodenum
oral cavity
stomach
Digestion of which of the following would be affected most by damage to the liver:
carbohydrates
proteins
lipids
nucleic acids
all of the above
lipids
Protein translation inside cells is carried out on
smooth endoplasmic reticulum
Golgi complexes
ribosomes
lysosomes
mitochondria
ribosomes
The intestinal villi are found in which of the layers of the alimentary canal?
adventitia
mucosa
skin
serosa
lamina prpria
mucosa
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
in the walls of the tract organs
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
amylase
As food is repeatedly squeezed and mixed in the stomach, itis converted to a creamy paste called:
bile
chyme
a bolus
saliva
faeces
chyme
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
submucosa
Parietal cells of the stomach produce:
rennin
mucin
pepsinogen
hydrochloric acid
amylase
hydrochloric acid
The small intestinal enzyme that catalyzes the hydrolysis of milk sugar into a glucose and galactose is called
sucrase
maltase
ribonuclease
amylase
lactase
lactase
Obesity is:
BMI> or equal to 30
BMI> or equal to 25
BMI> or equal to 35
BMI> or equal to 20
BMI> or equal to 30
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
The mouth
Chemical digestion reduces large complex molecules to simpler compounds by the process of:
catabolism
anabolism
mastication
absorption
fermentation
catabolism
The terminal portion of the small intestine is the :
pyloric sphincter
ileum
duodenum
jejunum
caecum
ileum
Absorption of digested nutrients and water in the small intestine occurs by
osmosis
facilitated diffusion
active transport
diffusion
all of the choices are correct
all of the choices are correct
