Bio 252 Exam 4
BIOL 252 exam 4 study questions and answers
2024-2025
Liver -Correct Answer ✔produces bile for fat emulsion
pancreas -Correct Answer ✔produces digestive enzymes. Accessory organ of the
digestive system that is both an endocrine and exocrine gland
components of bile -Correct Answer ✔minerals, bile pigments, bile acids (salts),
phospholipids, cholesterol
hepatic sinusoids -Correct Answer ✔blood filled channels between the layers of
hepatocytes in the liver
chymotrypsin and trypsin -Correct Answer ✔pancreatic enzymes that digest proteins
hepatic lobules -Correct Answer ✔microscopic subunits of the liver, each consisting of a
central vein passing down its core
cholecystokinin (CCK) -Correct Answer ✔in response to fat in the chyme, this hormone
is secreted by the duodenum to stimulate the pancreas to secrete enzymes, contract
the gallbladder, and relax the pyloric sphincter
hepatic macrophages -Correct Answer ✔cell in the liver that remove bacteria and debris
from the blood
gallbladder -Correct Answer ✔pear shaped sac on underside of the liver that serves to
store and concentrate bile
large intestine -Correct Answer ✔the portion of the alimentary canal that does not
secrete digestive enzymes, but does absorb water and electrolytes
emulsification -Correct Answer ✔process by which large drops of fat are broken apart
into smaller fat droplets
purposes for small intestine muscle contraction -Correct Answer ✔- mixing of chyme
with secretions
- propel contents along intestines
- mechanical digestion of food
- increase contact of chyme with intestinal lining
external anal sphincter -Correct Answer ✔sphincter under voluntary control
Bio 252 Exam 4
, Bio 252 Exam 4
internal anal sphincter -Correct Answer ✔sphincter under involuntary control
stretching of rectum -Correct Answer ✔stimulus for defecation reflex
bacterial flora -Correct Answer ✔refers to the many species of bacteria residing in our
large intestine
amylase (pancreatic or salivary) -Correct Answer ✔the enzyme that digests dietary
starch
intestinal motility -Correct Answer ✔- move residue along the digestive tract
- mix chyme with secretions
- bring chyme into contact with intestinal lining
haustral contractions -Correct Answer ✔a form of segmentation that occurs in the large
intestine
small intestine -Correct Answer ✔where does absorption of minerals take place?
chylomicrons -Correct Answer ✔particles that transport fats into lymph and blood
mass movements -Correct Answer ✔strong contractions within the large intestine that
occur 1 to 3 times a day and function to move residue several cm at a time
Micelles -Correct Answer ✔transport fats in the intestine to the brush border of epithelial
cells
renal corpuscle -Correct Answer ✔filters the blood plasma
renal tubule -Correct Answer ✔converts filtrate into urine
minor calyx -> major calyx -> renal pelvis -> ureter -Correct Answer ✔list in order the
structures through which a drop of urine will flow after it drains from renal papilla
efferent arteriole -Correct Answer ✔carries blood away from the glomerulus
Kidney Functions -Correct Answer ✔- secretion of renin and erythropioetin
- filtering blood to remove metabolic waste
- regulation of electrolyte balance
- synthesis of calcitriol
renal artery -> arcuate artery -> cortical radiate artery -> afferent arteriole -Correct
Answer ✔order of arteries carrying blood from aorta to renal cortex
Bio 252 Exam 4
BIOL 252 exam 4 study questions and answers
2024-2025
Liver -Correct Answer ✔produces bile for fat emulsion
pancreas -Correct Answer ✔produces digestive enzymes. Accessory organ of the
digestive system that is both an endocrine and exocrine gland
components of bile -Correct Answer ✔minerals, bile pigments, bile acids (salts),
phospholipids, cholesterol
hepatic sinusoids -Correct Answer ✔blood filled channels between the layers of
hepatocytes in the liver
chymotrypsin and trypsin -Correct Answer ✔pancreatic enzymes that digest proteins
hepatic lobules -Correct Answer ✔microscopic subunits of the liver, each consisting of a
central vein passing down its core
cholecystokinin (CCK) -Correct Answer ✔in response to fat in the chyme, this hormone
is secreted by the duodenum to stimulate the pancreas to secrete enzymes, contract
the gallbladder, and relax the pyloric sphincter
hepatic macrophages -Correct Answer ✔cell in the liver that remove bacteria and debris
from the blood
gallbladder -Correct Answer ✔pear shaped sac on underside of the liver that serves to
store and concentrate bile
large intestine -Correct Answer ✔the portion of the alimentary canal that does not
secrete digestive enzymes, but does absorb water and electrolytes
emulsification -Correct Answer ✔process by which large drops of fat are broken apart
into smaller fat droplets
purposes for small intestine muscle contraction -Correct Answer ✔- mixing of chyme
with secretions
- propel contents along intestines
- mechanical digestion of food
- increase contact of chyme with intestinal lining
external anal sphincter -Correct Answer ✔sphincter under voluntary control
Bio 252 Exam 4
, Bio 252 Exam 4
internal anal sphincter -Correct Answer ✔sphincter under involuntary control
stretching of rectum -Correct Answer ✔stimulus for defecation reflex
bacterial flora -Correct Answer ✔refers to the many species of bacteria residing in our
large intestine
amylase (pancreatic or salivary) -Correct Answer ✔the enzyme that digests dietary
starch
intestinal motility -Correct Answer ✔- move residue along the digestive tract
- mix chyme with secretions
- bring chyme into contact with intestinal lining
haustral contractions -Correct Answer ✔a form of segmentation that occurs in the large
intestine
small intestine -Correct Answer ✔where does absorption of minerals take place?
chylomicrons -Correct Answer ✔particles that transport fats into lymph and blood
mass movements -Correct Answer ✔strong contractions within the large intestine that
occur 1 to 3 times a day and function to move residue several cm at a time
Micelles -Correct Answer ✔transport fats in the intestine to the brush border of epithelial
cells
renal corpuscle -Correct Answer ✔filters the blood plasma
renal tubule -Correct Answer ✔converts filtrate into urine
minor calyx -> major calyx -> renal pelvis -> ureter -Correct Answer ✔list in order the
structures through which a drop of urine will flow after it drains from renal papilla
efferent arteriole -Correct Answer ✔carries blood away from the glomerulus
Kidney Functions -Correct Answer ✔- secretion of renin and erythropioetin
- filtering blood to remove metabolic waste
- regulation of electrolyte balance
- synthesis of calcitriol
renal artery -> arcuate artery -> cortical radiate artery -> afferent arteriole -Correct
Answer ✔order of arteries carrying blood from aorta to renal cortex
Bio 252 Exam 4
