which of the following is true?

insulin stimulates production of anorexic neuropeptides

Osmotic diarrhoea occurs mainly because of..

reduced absorption of nutrients

Which of the following is correct regarding gastrointestinal (GI) motility?

slow waves are not initiated by myoenteric motor neurons

Which of the following is not performed by the liver?

none of them are performed by the liver

Which of the following is not correct regarding bile?

bile salts are reabsorbed in the duodenum

which of the following is not associated with a secondary active transport event?

transport of H+ to the gastric lumen

what is a major function of the migrating motor complex?

cleaning of the gastrointestinal track

which of the following is true?

hypothalamic hunger centre is tonically active

Which of the following will induce more HCl secretion?

vagal efferent innervation and gastrin

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BIOL2044 Digestion and Metabolism

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Quiz BIOL2044 Body Systems 2: Human Physiology

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Questions 24

Answers

1
which of the following is true?
low aas triggers orexigenic peptides in ventromedial nucleus
thalamic nuclei control hunger and satiety
leptin promotes activation of the lateral nucleus
insulin stimulates production of anorexic neuropeptides
2
orexigenin neuropeptides are released by which of the following?
ghrelin
high portal glucose levels
insulin
cholecystokinin
3
which of the following is transported with aminoacids to the enterocyte?
Sodium
Protons
bicarbonate
chloride
4
Osmotic diarrhoea occurs mainly because of..
enhanced migrating motor complex activity
microbial infection
cholera toxin
reduced absorption of nutrients
5
Which of the following is not involved in gastrointestinal short reflexes
interneurons
sensory enteric neurons
vagal afferent innervation
submucosal plexus
6
Which of the following is correct regarding gastrointestinal (GI) motility?
gut peristalsis is controlled by interstitial cells of cajal
segmentation propels food in the small intestine
slow waves are not initiated by myoenteric motor neurons
GI motility is a continuous event
7
In which of the following locations does not occur chemical digestion?
mouth
small intestine
colon
stomach
8
which of the following is secreted by chief cells?
zymogens
HCO3-
mucins
HCl
9
what structure is located between the longitudinal and circular muscle layers of the gut?
myenteric plexus
muscularis externa
serosa
submucosal plexus
10
Which of the following is not performed by the liver?
none of them are performed by the liver
glycogenolysis after a meal
glycogenesis during starvation
gluconeogenesis from fatty acids
11
Which of the following does not involve mechanical digestion?
chewing
churning
hydroclhoric acid
segmentation
12
which of the following allows the exit of glucose from the enterocytes?
GLUT2
SGLT
GLUT5
GLUT4
13
Which of the following is not correct regarding bile?
bile excrete products arising from old erythrocytes removal
bile salts facilitate cholesterol absorption
hepatocytes pour bile components into canaliculi
bile salts are reabsorbed in the duodenum
14
which of the following contains glucose sensors?
pancreas
all of them
portal venules
intestinal mucosa
15
which of the following is not associated with a secondary active transport event?
transport of galactose the enterocyte
transport of Cl- to the enterocyte
secretion of bicarbonate by the pancreas
transport of H+ to the gastric lumen
16
what is a major function of the migrating motor complex?
mixing of chyme by segmentation
defecation
cleaning of the gastrointestinal track
propulsion of the alimentary bolus
17
Which of the following is not associated to the metabolic syndrome?
hypertriglyceridemia
hypertension
subcutaneous obesity
insulin resistance
18
which of the following contributes to the final digestion of carbohydrates?
isomaltase
salivary amylases
pancreatic amylases
brush border enteropeptidase
19
which of the following prevents weight loss with dieting?
decreased LPL activity in adipose tissue
increased thyroid hormones release
increased ghrelin production
increased leptin levels
20
which of the following is true?
cholecystokinin inhibits the satiety centre
hypothalamic hunger centre is tonically active
GI muscle contraction is a short term signal to stop eating
none is true
21
which of the following inhibits gastric emptying?
presence of fat in stomach
release of cholecystokinin by parietal cells
contraction of circular muscle layer in the small intestine
secretion of secretin
22
which of the following events is caused by glucose
all of the above
secretion of water
activation of a secretory reflex
secretion of electrolytes to the Gastrointestinal lumen
23
Which of the following will induce more HCl secretion?
somatostatin and gastrin
acetylcholine, gastrin and somatostain
vagal efferent innervation and gastrin
somastostatin and histamine
24
Which of the following does not deliver lipids to the adipose tissue?
chylomicroms
VLDL
HDL
LDL

BIOL2044 Digestion and Metabolism Flashcards | StudBud