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Home Q & A Board Biology-Related Homework Help Cell Biology
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Blood from the intestinal capillaries drains into what blood vessel before entering the hepatic port
Blood from the intestinal capillaries drains into what blood vessel before entering the hepatic port
Blood from the intestinal capillaries drains into what blood vessel before entering the hepatic portal vein?
A) hepatic artery
B) intestinal vein
C) mesenteric vein
D) coeliac vein
E) hepatic vein
...hello   169   1 Reply
7 years ago
What region of the colon serves primarily as a storage depot for whatever material remains in the lu
What region of the colon serves primarily as a storage depot for whatever material remains in the lu
What region of the colon serves primarily as a storage depot for whatever material remains in the lumen after absorption has occurred?
A) ascending
B) resected
C) descending
D) transverse
E) sigmoid
...hello   162   1 Reply
7 years ago
What is the primary function of the colon?
What is the primary function of the colon?
What is the primary function of the colon?
A) further digest fats within the chyme
B) reduce the volume of the chyme
C) further absorb carbohydrates
D) further digest protein within the chyme
E) regulate absorption of carbohy
...hello   179   1 Reply
7 years ago
Which of the following structures is NOT part of the large intestine?
Which of the following structures is NOT part of the large intestine?
Which of the following structures is NOT part of the large intestine?
A) rectum
B) colon
C) cecum
D) vermiform appendix
E) anus
...hello   165   1 Reply
7 years ago
Which of the following sphincters is composed of skeletal muscle?
Which of the following sphincters is composed of skeletal muscle?
Which of the following sphincters is composed of skeletal muscle?
A) pyloric sphincter only
B) upper esophageal sphincter only
C) external anal sphincter only
D) both the pyloric and upper esophageal sphincters
E) both the up
...hello   135   1 Reply
7 years ago
Which of the following is NOT one of the components of saliva?
Which of the following is NOT one of the components of saliva?
Which of the following is NOT one of the components of saliva?
A) lysozymes
B) lipases
C) mucus
D) amylases
E) bicarbonate ions
...hello   114   1 Reply
7 years ago
Which of the following is NOT one of the components of exocrine pancreatic secretions?
Which of the following is NOT one of the components of exocrine pancreatic secretions?
Which of the following is NOT one of the components of exocrine pancreatic secretions?
A) amylase
B) lipase
C) sucrose
D) protease
E) nuclease
...hello   131   1 Reply
7 years ago
What enzymes, secreted by the exocrine pancreas, degrade fats?
What enzymes, secreted by the exocrine pancreas, degrade fats?
What enzymes, secreted by the exocrine pancreas, degrade fats?
A) endopeptidases
B) lipases
C) amylases
D) proteases
E) nucleases
...hello   130   1 Reply
7 years ago
Which of the following secretes a bicarbonate-rich fluid?
Which of the following secretes a bicarbonate-rich fluid?
Which of the following secretes a bicarbonate-rich fluid?
A) pancreas only
B) salivary glands only
C) liver only
D) both salivary glands and pancreas
E) salivary glands, pancreas, and liver
...hello   137   1 Reply
7 years ago
Which of the following secretes lipase?
Which of the following secretes lipase?
Which of the following secretes lipase?
A) salivary glands only
B) liver only
C) pancreas only
D) both salivary glands and pancreas
E) pancreas and liver
...hello   125   1 Reply
7 years ago
Which of the following is NOT one of the functions of the liver?
Which of the following is NOT one of the functions of the liver?
Which of the following is NOT one of the functions of the liver?
A) synthesis of albumin
B) synthesis and modification of hormones
C) secretion of bile
D) secretion of enzymes for digestion
E) removal of aged erythrocytes
...hello   115   1 Reply
7 years ago
What degradation by-product of hemoglobin is removed from the blood by the liver, conjugated, and th
What degradation by-product of hemoglobin is removed from the blood by the liver, conjugated, and th
What degradation by-product of hemoglobin is removed from the blood by the liver, conjugated, and then secreted into the bile?
A) uric acid
B) bilirubin
C) iron
D) urea
E) lipoproteins
...hello   148   1 Reply
7 years ago
In order to convert amino acids to gluconeogenic precursors, their ammonium ion must be removed in t
In order to convert amino acids to gluconeogenic precursors, their ammonium ion must be removed in t
In order to convert amino acids to gluconeogenic precursors, their ammonium ion must be removed in the liver, which is then converted to what substance, thereby making it water soluble enough to be excreted by the kidneys?
A) ammonia
B) ure
...hello   151   1 Reply
7 years ago
Which of the following is NOT one of the wastes eliminated by the liver in bile?
Which of the following is NOT one of the wastes eliminated by the liver in bile?
Which of the following is NOT one of the wastes eliminated by the liver in bile?
A) urea
B) cholesterol
C) certain drugs
D) trace metals
E) bilirubin
...hello   191   1 Reply
7 years ago
Which of the following is NOT one of the hormone-related functions of the liver?
Which of the following is NOT one of the hormone-related functions of the liver?
Which of the following is NOT one of the hormone-related functions of the liver?
A) hormone synthesis
B) secretion of hormone-binding proteins
C) hormone modification
D) hormone degradation
E) hormone storage
...hello   147   1 Reply
7 years ago
The flow of bile from the liver and juices from the exocrine pancreas converge at what structure?
The flow of bile from the liver and juices from the exocrine pancreas converge at what structure?
The flow of bile from the liver and juices from the exocrine pancreas converge at what structure?
A) gallbladder
B) common bile duct
C) ampulla of Vater
D) bile duct
E) common hepatic duct
...hello   158   1 Reply
7 years ago
One side of a hepatocyte faces the blood while the other faces what?
One side of a hepatocyte faces the blood while the other faces what?
One side of a hepatocyte faces the blood while the other faces what?
A) enterocyte
B) bile canaliculus
C) acinar cells
D) sinusoid
E) common hepatic duct
...hello   205   1 Reply
7 years ago
What is the functional unit of the liver?
What is the functional unit of the liver?
What is the functional unit of the liver?
A) lobule
B) lobe
C) hepatocyte
D) bile canaliculi
E) sinusoid
...hello   141   1 Reply
7 years ago
What are liver sinusoids? (Multiple Choice)
What are liver sinusoids? (Multiple Choice)
What are liver sinusoids?
A) blood-filled cavities that exchange material with the hepatocytes
B) bile-filled cavities that exchange material with the hepatocytes
C) the site of bile synthesis
D) the pathway for bile to exit the l
...hello   142   1 Reply
7 years ago
What are Kupffer cells? (Multiple Choice)
What are Kupffer cells? (Multiple Choice)
What are Kupffer cells?
A) cells lining the crypts of Lieberkühn
B) cells lining the pancreatic duct
C) macrophages in the liver
D) hepatocytes
E) cells of the stomach that secrete hydrogen ions
...hello   156   1 Reply
7 years ago
The enzyme amylase is able to cleave glycogen and starch into
The enzyme amylase is able to cleave glycogen and starch into
The enzyme amylase is able to cleave glycogen and starch into
A) monosaccharides only.
B) disaccharides only.
C) limit dextrins only.
D) both disaccharides and limit dextrins.
E) both monosaccharides and disaccharides.
...hello   158   1 Reply
7 years ago
Which of the following is NOT an enzyme that acts on the products of amylase digestion of glycogen a
Which of the following is NOT an enzyme that acts on the products of amylase digestion of glycogen a
Which of the following is NOT an enzyme that acts on the products of amylase digestion of glycogen and starch?
A) galactase
B) sucrase
C) glucoamylase
D) dextrinase
E) maltase
...hello   156   1 Reply
7 years ago
The absorption of glucose involves ________ across the apical membrane and ________ across the basol
The absorption of glucose involves ________ across the apical membrane and ________ across the basol
The absorption of glucose involves ________ across the apical membrane and ________ across the basolateral membrane.
A) simple diffusion : facilitated diffusion
B) secondary active transport : primary active transport
C) secondary acti
...hello   185   1 Reply
7 years ago
Where are enzymes that breakdown disaccharides located?
Where are enzymes that breakdown disaccharides located?
Where are enzymes that breakdown disaccharides located?
A) inside enterocytes
B) on the apical membrane of enterocytes
C) in the lumen of the large intestine
D) on the basolateral membrane of enterocytes
E) in the lumen of th
...hello   174   1 Reply
7 years ago
The absorption of fructose across the apical membrane of the lumenal epithelial cells occurs through
The absorption of fructose across the apical membrane of the lumenal epithelial cells occurs through
The absorption of fructose across the apical membrane of the lumenal epithelial cells occurs through what process?
A) paracellular transport
B) primary active transport
C) diffusion
D) sodium-linked secondary active transport
...hello   171   1 Reply
7 years ago
The digestion of proteins begins in the ________ with the activation of the zymogen ________.
The digestion of proteins begins in the ________ with the activation of the zymogen ________.
The digestion of proteins begins in the ________ with the activation of the zymogen ________.
A) stomach : procarboxypeptidase
B) small intestine : chymotrypsinogen
C) small intestine : trypsinogen
D) stomach : pepsinogen
E)
...hello   167   1 Reply
7 years ago
What enzyme is responsible for cleavage of the amino acid at the amine portion of the peptide fragme
What enzyme is responsible for cleavage of the amino acid at the amine portion of the peptide fragme
What enzyme is responsible for cleavage of the amino acid at the amine portion of the peptide fragment?
A) chymotrypsin
B) trypsin
C) enterokinase
D) carboxypeptidase
E) aminopeptidase
...hello   156   1 Reply
7 years ago
What enzyme activates procarboxypeptidase? (Multiple Choice)
What enzyme activates procarboxypeptidase? (Multiple Choice)
What enzyme activates procarboxypeptidase?
A) trypsin
B) enterokinase
C) aminopeptidase
D) carboxypeptidase
E) pepsin
...hello   159   1 Reply
7 years ago
Proteolytic enzymes secreted in pancreatic juice are stored in secretory cells of the pancreas as
Proteolytic enzymes secreted in pancreatic juice are stored in secretory cells of the pancreas as
Proteolytic enzymes secreted in pancreatic juice are stored in secretory cells of the pancreas as
A) pepsinogen.
B) chylomicrons.
C) bile salts.
D) zymogens.
E) limit dextrins.
...hello   136   1 Reply
7 years ago
What enzyme cleaves trypsinogen to trypsin?
What enzyme cleaves trypsinogen to trypsin?
What enzyme cleaves trypsinogen to trypsin?
A) enterokinase
B) chymotrypsin
C) pepsin
D) procarboxypeptidase
E) amylase
...hello   98   1 Reply
7 years ago
Many individual amino acids enter the epithelial cells that line the lumen of the digestive tract vi
Many individual amino acids enter the epithelial cells that line the lumen of the digestive tract vi
Many individual amino acids enter the epithelial cells that line the lumen of the digestive tract via what transport process?
A) simple diffusion
B) sodium-linked secondary active transport
C) primary active transport
D) paracellu
...hello   159   1 Reply
7 years ago
In order to begin the process of fat digestion, the fat globules must be
In order to begin the process of fat digestion, the fat globules must be
In order to begin the process of fat digestion, the fat globules must be
A) emulsified by trypsin.
B) coalesced by bile salts.
C) emulsified by lipases.
D) emulsified by bile salts.
E) coalesced by lipase.
...hello   171   1 Reply
7 years ago
Emulsification aids in the digestion of fats by
Emulsification aids in the digestion of fats by
Emulsification aids in the digestion of fats by
A) the ability of bile salts to activate lipases that digest fats.
B) increasing the surface area of the fat globule exposed to enzymes.
C) increasing the number of fat globules.
D)
...hello   177   1 Reply
7 years ago
Pancreatic lipase degrades triglycerides into a
Pancreatic lipase degrades triglycerides into a
Pancreatic lipase degrades triglycerides into a
A) diglyceride and 1 free fatty acid.
B) glycerol and 3 free fatty acids.
C) monoglyceride and 1 free fatty acid.
D) monoglyceride and 2 free fatty acids.
E) triglyceride whose
...hello   180   1 Reply
7 years ago
Digestion products of lipases are readily exchanged in the lumen with
Digestion products of lipases are readily exchanged in the lumen with
Digestion products of lipases are readily exchanged in the lumen with
A) polysaccharides.
B) low-density lipoproteins.
C) cholesterol.
D) chylomicrons.
E) micelles.
...hello   153   1 Reply
7 years ago
Bile salts are recycled by the
Bile salts are recycled by the
Bile salts are recycled by the
A) hepatic arteries.
B) mesenteric arteries.
C) enterohepatic circulation.
D) common bile duct.
E) biliary circulation.
...hello   163   1 Reply
7 years ago
The products of fat degradation are absorbed in the small intestines by what transport process?
The products of fat degradation are absorbed in the small intestines by what transport process?
The products of fat degradation are absorbed in the small intestines by what transport process?
A) sodium-linked secondary active transport
B) facilitated diffusion
C) paracellular transport
D) simple diffusion
E) primary act
...hello   121   1 Reply
7 years ago
Once the degradation products of triglycerides have entered the epithelial cells that line the small
Once the degradation products of triglycerides have entered the epithelial cells that line the small
Once the degradation products of triglycerides have entered the epithelial cells that line the small intestines, they
A) are reassembled into triglycerides and released into the blood where they can be incorporated into chylomicrons.
B) cr
...hello   133   1 Reply
7 years ago
Lipids are absorbed as ________ into ________.
Lipids are absorbed as ________ into ________.
Lipids are absorbed as ________ into ________.
A) fatty acids and monoglycerides : mesenteric capillaries
B) micelles : lacteals
C) chylomicrons : mesenteric capillaries
D) micelles : mesenteric capillaries
E) chylomicrons :
...hello   141   1 Reply
7 years ago
Vitamin B12 is absorbed in the ________ through ________.
Vitamin B12 is absorbed in the ________ through ________.
Vitamin B12 is absorbed in the ________ through ________.
A) ileum : complexing with intrinsic factor
B) duodenum : cotransport with sodium
C) duodenum : facilitated diffusion
D) jejunum : complexing with intrinsic factor
E)
...hello   138   1 Reply
7 years ago
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