biology 251 exam 4 Test Questions
and All Correct Answers.
the activity of the respiratory system can compensate for an acidosis, i.e decrease in pH by
A.) a hyperventilation-induced increase in CO2 in the body
B.) a hypoventilation-induced increase in CO2 in the body
C.) a hyperventilation-induced decreased in CO2 in the body
D.) a hypoventilation-induced decreased in CO2 in the body
E.) increasing the amount of hydrogen ion in the blood - Answer C.) a hyperventilation-
induced decreased in CO2 in the body
which of the following acts as a buffer to minimize changes in intracellular pH?
A.) phosphate and proteins
B.) bicarbonate
C.) chloride
D.) potassium
E.) sodium - Answer A.) phosphate and proteins
what is the first line of defense against changes in blood pH?
A.) respiratory compensation
B.) buffering of hydrogen ions
C.) renal compensation
D.) cardiac compensation
E.) hepatic compensation - Answer B.) buffering of hydrogen ions
how might a high-fat diet cause metabolic acidosis?
A.) due to the breakdown of fat into fatty acids which are acids
B.) due to the production of phosphoric and sulfic acids
C.) due to a a loss of hydrogen ions
D.) due to a gain of phosphate
E.) due to a loss of bicarbonate - Answer A.) due to the breakdown of fat into fatty acids
which are acids
Which of the following is NOT a basic process of the digestive system?
A.) digestion
, B.) filtration
C.) absorption
D.) secretion
E.) motility - Answer B.) filtration
what cells secrete pepsinogen into the lumen of the stomach?
A.) goblet
B.) G cell
C.) parietal
D.) chief
E.) neck - Answer D.) chief
what type of cells secretes both gastric acid and intrinsic factor into the lumen of the stomach?
A.) goblet
B.) parietal
C.) chief
D.) neck
E.) G cell - Answer B.) parietal
As the food is broken into smaller pieces in the mouth, it is combined with the enzyme ______
in the saliva that facilities the digestion of any starch in the food
A.) pepsin
B.) trypsin
C.) amylase
D.) chymotrypsin
E.) endopeptidase - Answer C.) amylase
What protects the stomach wall from the acidic lumenal contents?
A.) a layer of parietal cells
B.) the gastric mucosal barrier
C.) the presence of rugae
D.) the gastric coat
E.) a layer of adipose tissue lining the gastric mucosa - Answer B.) the gastric mucosal barrier
Which of the following Is NOT one of digestive enzyme secreted by the exocrine pancreas?
and All Correct Answers.
the activity of the respiratory system can compensate for an acidosis, i.e decrease in pH by
A.) a hyperventilation-induced increase in CO2 in the body
B.) a hypoventilation-induced increase in CO2 in the body
C.) a hyperventilation-induced decreased in CO2 in the body
D.) a hypoventilation-induced decreased in CO2 in the body
E.) increasing the amount of hydrogen ion in the blood - Answer C.) a hyperventilation-
induced decreased in CO2 in the body
which of the following acts as a buffer to minimize changes in intracellular pH?
A.) phosphate and proteins
B.) bicarbonate
C.) chloride
D.) potassium
E.) sodium - Answer A.) phosphate and proteins
what is the first line of defense against changes in blood pH?
A.) respiratory compensation
B.) buffering of hydrogen ions
C.) renal compensation
D.) cardiac compensation
E.) hepatic compensation - Answer B.) buffering of hydrogen ions
how might a high-fat diet cause metabolic acidosis?
A.) due to the breakdown of fat into fatty acids which are acids
B.) due to the production of phosphoric and sulfic acids
C.) due to a a loss of hydrogen ions
D.) due to a gain of phosphate
E.) due to a loss of bicarbonate - Answer A.) due to the breakdown of fat into fatty acids
which are acids
Which of the following is NOT a basic process of the digestive system?
A.) digestion
, B.) filtration
C.) absorption
D.) secretion
E.) motility - Answer B.) filtration
what cells secrete pepsinogen into the lumen of the stomach?
A.) goblet
B.) G cell
C.) parietal
D.) chief
E.) neck - Answer D.) chief
what type of cells secretes both gastric acid and intrinsic factor into the lumen of the stomach?
A.) goblet
B.) parietal
C.) chief
D.) neck
E.) G cell - Answer B.) parietal
As the food is broken into smaller pieces in the mouth, it is combined with the enzyme ______
in the saliva that facilities the digestion of any starch in the food
A.) pepsin
B.) trypsin
C.) amylase
D.) chymotrypsin
E.) endopeptidase - Answer C.) amylase
What protects the stomach wall from the acidic lumenal contents?
A.) a layer of parietal cells
B.) the gastric mucosal barrier
C.) the presence of rugae
D.) the gastric coat
E.) a layer of adipose tissue lining the gastric mucosa - Answer B.) the gastric mucosal barrier
Which of the following Is NOT one of digestive enzyme secreted by the exocrine pancreas?
