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Home Q & A Board Biology-Related Homework Help Cell Biology
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A lack of intrinsic factor can result in
A lack of intrinsic factor can result in
A lack of intrinsic factor can result in
A) immune suppression.
B) diarrhea.
C) pernicious anemia.
D) aplastic anemia.
E) diabetes.
...hello   161   1 Reply
7 years ago
The absorption of sodium throughout the small intestine is driven by ________ transport and is typic
The absorption of sodium throughout the small intestine is driven by ________ transport and is typic
The absorption of sodium throughout the small intestine is driven by ________ transport and is typically linked to the absorption of ________.
A) active : glucose
B) active : bicarbonate
C) active : chloride
D) passive : bicarbona
...hello   146   1 Reply
7 years ago
In the jejunum, bicarbonate is ________, while in the ileum and colon, bicarbonate is ________.
In the jejunum, bicarbonate is ________, while in the ileum and colon, bicarbonate is ________.
In the jejunum, bicarbonate is ________, while in the ileum and colon, bicarbonate is ________.
A) secreted : absorbed
B) secreted : secreted
C) absorbed : not transported in either direction
D) absorbed : secreted
E) absorbe
...hello   173   1 Reply
7 years ago
Carbonic anhydrase is located in which of the following digestive structures?
Carbonic anhydrase is located in which of the following digestive structures?
Carbonic anhydrase is located in which of the following digestive structures?
A) parietal cells only
B) salivary glands only
C) lumen of the small intestine only
D) both salivary glands and parietal cells
E) both parietal cel
...hello   215   1 Reply
7 years ago
Which of the following substances does NOT require the interaction with a protein in the intestinal
Which of the following substances does NOT require the interaction with a protein in the intestinal
Which of the following substances does NOT require the interaction with a protein in the intestinal tract to be absorbed?
A) vitamin B12
B) fat-soluble vitamins
C) calcium
D) sodium
E) iron
...hello   112   1 Reply
7 years ago
The central component of the long reflex pathway typically involves the ________ nervous system, whi
The central component of the long reflex pathway typically involves the ________ nervous system, whi
The central component of the long reflex pathway typically involves the ________ nervous system, which acts to promote an increase in gastrointestinal activity.
A) intrinsic
B) parasympathetic
C) sympathetic
D) somatic
E) ent
...hello   141   1 Reply
7 years ago
Gastric-phase control of gastrointestinal function refers to its site of origin, which is what?
Gastric-phase control of gastrointestinal function refers to its site of origin, which is what?
Gastric-phase control of gastrointestinal function refers to its site of origin, which is what?
A) the pancreas
B) the central nervous system
C) the intestines
D) the stomach
E) the colon
...hello   150   1 Reply
7 years ago
Which of the following is NOT one of the hormones released by the gastrointestinal tract that regula
Which of the following is NOT one of the hormones released by the gastrointestinal tract that regula
Which of the following is NOT one of the hormones released by the gastrointestinal tract that regulates its function?
A) cholecystokinin
B) secretin
C) glucose-dependent insulinotropic peptide
D) gastrin
E) glucose inhibitory
...hello   105   1 Reply
7 years ago
Which of the following is an enterogastrone?
Which of the following is an enterogastrone?
Which of the following is an enterogastrone?
A) gastrin
B) bile
C) cholecystokinin
D) monoglyceride
E) epinephrine
...hello   120   1 Reply
7 years ago
What does the secretion of leptin cause?
What does the secretion of leptin cause?
What does the secretion of leptin cause?
A) decreased gastric secretion into the gastrointestinal tract
B) increased motility of the gastrointestinal tract
C) increased bile secretion
D) increased pancreatic secretion into the gas
...hello   144   1 Reply
7 years ago
What causes leptin secretion to increase?
What causes leptin secretion to increase?
What causes leptin secretion to increase?
A) increased gluconeogenesis in liver cells
B) decreased synthesis of triglycerides in adipose cells
C) increased storage of calories in adipose cells
D) decreased synthesis of glycogen in
...hello   127   1 Reply
7 years ago
Obesity predisposes a person for development of all of the following diseases EXCEPT
Obesity predisposes a person for development of all of the following diseases EXCEPT
Obesity predisposes a person for development of all of the following diseases EXCEPT
A) liver disease.
B) hypertension.
C) heart disease.
D) rickets.
E) atherosclerosis.
...hello   121   1 Reply
7 years ago
A person is considered obese if their body fat composition is what percentage above normal?
A person is considered obese if their body fat composition is what percentage above normal?
A person is considered obese if their body fat composition is what percentage above normal?
A) 40
B) 10
C) 50
D) 20
E) 30
...hello   172   1 Reply
7 years ago
What cell type secretes resistin?
What cell type secretes resistin?
What cell type secretes resistin?
A) G cells only
B) macrophages only
C) hepatocytes only
D) adipocytes and macrophages
E) adipocytes only
...hello   142   1 Reply
7 years ago
The increase in absorbed nutrients in blood will cause secretion of what hormone to increase, thereb
The increase in absorbed nutrients in blood will cause secretion of what hormone to increase, thereb
The increase in absorbed nutrients in blood will cause secretion of what hormone to increase, thereby decreasing the sensation of hunger?
A) cholecystokinin
B) gastrin
C) glucagon
D) secretin
E) insulin
...hello   164   1 Reply
7 years ago
The presence of food in the duodenum will cause secretion of what hormone to increase, thereby decre
The presence of food in the duodenum will cause secretion of what hormone to increase, thereby decre
The presence of food in the duodenum will cause secretion of what hormone to increase, thereby decreasing the sensation of hunger?
A) secretin
B) cholecystokinin
C) glucagon
D) gastrin
E) insulin
...hello   121   1 Reply
7 years ago
________ ions are produced within the parietal cells and transported across the apical membrane via
________ ions are produced within the parietal cells and transported across the apical membrane via
________ ions are produced within the parietal cells and transported across the apical membrane via an active transporter while, at the same time, ________ moves across the apical membrane through ion channels.
A) Bicarbonate : hydrogen
B)
...hello   124   1 Reply
7 years ago
Which of the following is a gastric-phase stimulus for acid secretion?
Which of the following is a gastric-phase stimulus for acid secretion?
Which of the following is a gastric-phase stimulus for acid secretion?
A) distension of the stomach and the act of swallowing
B) distension of the stomach and the presence of protein digestion products in the lumen of the stomach
C) ch
...hello   156   1 Reply
7 years ago
In response to the presence of food within the duodenum, the increased release of what hormone is th
In response to the presence of food within the duodenum, the increased release of what hormone is th
In response to the presence of food within the duodenum, the increased release of what hormone is the predominant stimulus for an increase in enzyme secretion from the exocrine pancreas?
A) gastrin
B) insulin
C) glucose-dependent insul
...hello   91   1 Reply
7 years ago
In response to the presence of food within the duodenum, the increased release of what hormone will
In response to the presence of food within the duodenum, the increased release of what hormone will
In response to the presence of food within the duodenum, the increased release of what hormone will predominantly stimulate the increase of bicarbonate secretion from the exocrine pancreas?
A) gastrin
B) glucose-dependent insulinotropic pep
...hello   117   1 Reply
7 years ago
The secretion of cholecystokinin is predominantly regulated by which of the following?
The secretion of cholecystokinin is predominantly regulated by which of the following?
The secretion of cholecystokinin is predominantly regulated by which of the following?
A) protein digestion products and fat presence in the duodenum
B) carbohydrate digestion products
C) opening of the pyloric sphincter
D) acid a
...hello   256   1 Reply
7 years ago
The secretion of secretin is predominantly regulated by which of the following?
The secretion of secretin is predominantly regulated by which of the following?
The secretion of secretin is predominantly regulated by which of the following?
A) protein digestion products and fat
B) carbohydrate digestion products
C) opening of the pyloric sphincter
D) acid content of the duodenum
E) d
...hello   129   1 Reply
7 years ago
Which of the following are mechanisms by which cholecystokinin (CCK) facilitates digestion of fats?A
Which of the following are mechanisms by which cholecystokinin (CCK) facilitates digestion of fats?A
Which of the following are mechanisms by which cholecystokinin (CCK) facilitates digestion of fats?
A) stimulation of bile secretion and liver contraction
B) stimulation of gallbladder contraction and relaxation of the sphincter of Oddi
...hello   282   1 Reply
7 years ago
What is the main hormone that stimulates bile secretion in the liver?
What is the main hormone that stimulates bile secretion in the liver?
What is the main hormone that stimulates bile secretion in the liver?
A) cholecystokinin
B) glucagon
C) insulin
D) gastrin
E) secretin
...hello   114   1 Reply
7 years ago
In the intestine, the smooth muscle cell's
In the intestine, the smooth muscle cell's
In the intestine, the smooth muscle cell's
A) contraction is stimulated by motor neurons.
B) force of contraction is graded by the extent of depolarization for slow waves until an action potential is generated.
C) contraction requ
...hello   174   1 Reply
7 years ago
What causes peristalsis? (Multiple Choice)
What causes peristalsis? (Multiple Choice)
What causes peristalsis?
A) contraction of the circular muscle layer and relaxation of the longitudinal muscle in the proximal segment coupled with the contraction of longitudinal muscle and relaxation of the circular muscle in the distal segmen
...hello   189   1 Reply
7 years ago
What causes segmentation? (Multiple Choice)
What causes segmentation? (Multiple Choice)
What causes segmentation?
A) contraction of the circular muscle at one intestinal segment coupled with its relaxation at adjoining segments
B) contraction of the circular muscle at one intestinal segment coupled with contraction of the long
...hello   130   1 Reply
7 years ago
What does propelling food to the back of the mouth with the tongue initiate?
What does propelling food to the back of the mouth with the tongue initiate?
What does propelling food to the back of the mouth with the tongue initiate?
A) the chewing reflex
B) bolus formation
C) receptive relaxation
D) peristalsis
E) the swallowing reflex
...hello   201   1 Reply
7 years ago
What does entry of the bolus into the esophagus initiate by stimulating stretch receptors?
What does entry of the bolus into the esophagus initiate by stimulating stretch receptors?
What does entry of the bolus into the esophagus initiate by stimulating stretch receptors?
A) peristalsis
B) bolus formation
C) receptive relaxation
D) the chewing reflex
E) the swallowing reflex
...hello   140   1 Reply
7 years ago
What is the decrease in rugae folding within the stomach in advance of the arrival of a bolus of foo
What is the decrease in rugae folding within the stomach in advance of the arrival of a bolus of foo
What is the decrease in rugae folding within the stomach in advance of the arrival of a bolus of food called?
A) receptive relaxation
B) peristaltic relaxation
C) esophageal reflex relaxation
D) gastric expansion
E) gastric u
...hello   109   1 Reply
7 years ago
The peristaltic waves of the stomach will result in ________ if the pyloric sphincter is closed.
The peristaltic waves of the stomach will result in ________ if the pyloric sphincter is closed.
The peristaltic waves of the stomach will result in ________ if the pyloric sphincter is closed.
A) the mixing of the chyme
B) the formation of a bolus
C) stimulation of hormone secretion from the duodenum
D) an inhibition of furt
...hello   134   1 Reply
7 years ago
Which of the following describes events of the migrating motility complex in the stomach?
Which of the following describes events of the migrating motility complex in the stomach?
Which of the following describes events of the migrating motility complex in the stomach?
A) intense antral contractions accompanied by pyloric contraction
B) intense antral contractions accompanied by pyloric relaxation
C) mild fundic
...hello   117   1 Reply
7 years ago
Where does peristalsis occur? (Multiple Choice)
Where does peristalsis occur? (Multiple Choice)
Where does peristalsis occur?
A) esophagus only
B) stomach only
C) small intestine only
D) stomach and small intestine only
E) esophagus, stomach, and small intestine
...hello   190   1 Reply
7 years ago
Which of the following increases gastric motility?
Which of the following increases gastric motility?
Which of the following increases gastric motility?
A) increased fat content in the lumen of the duodenum
B) cholecystokinin and secretin
C) increased osmolarity of duodenal contents
D) distension of the intestines
E) distensi
...hello   121   1 Reply
7 years ago
What is the function of segmentation in the small intestines?
What is the function of segmentation in the small intestines?
What is the function of segmentation in the small intestines?
A) releasing bile from the gall bladder
B) mixing the chyme
C) propelling the chyme
D) the opening of the pyloric valve
E) releasing pancreatic juices
...hello   104   1 Reply
7 years ago
What reflex protects the small intestine by inhibiting contractions while the intestines are injured
What reflex protects the small intestine by inhibiting contractions while the intestines are injured
What reflex protects the small intestine by inhibiting contractions while the intestines are injured or severely distended?
A) intestino-intestinal reflex
B) gastrocolic reflex
C) gastroileal reflex
D) ileogastric reflex
E) c
...hello   77   1 Reply
7 years ago
What reflex stimulates the motility of the ileum in response to the presence of chyme in the stomach
What reflex stimulates the motility of the ileum in response to the presence of chyme in the stomach
What reflex stimulates the motility of the ileum in response to the presence of chyme in the stomach?
A) gastroileal reflex
B) ileogastric reflex
C) gastrocolic reflex
D) intestino-intestinal reflex
E) colonocolonic reflex
...hello   148   1 Reply
7 years ago
What stimulates the defecation reflex?
What stimulates the defecation reflex?
What stimulates the defecation reflex?
A) distention of the descending colon
B) pressure on the internal anal sphincter
C) increase in osmolarity of the rectum
D) peristaltic contraction of the sigmoid colon
E) distention of
...hello   147   1 Reply
7 years ago
What is a mass movement?
What is a mass movement?
What is a mass movement?
A) a segmentation-like wave in the large intestine that mixes the contents
B) a segmentation-like wave in the large intestine that causes the elimination of contents as feces
C) another name for defecation
...hello   91   1 Reply
7 years ago
What is the innermost layer of the gastrointestinal wall called?
What is the innermost layer of the gastrointestinal wall called?
What is the innermost layer of the gastrointestinal wall called?
A) serosa
B) myenteric plexus
C) mucosa
D) muscularis externa
E) submucosa
...hello   142   1 Reply
7 years ago
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