#1
Which enzyme breaks down proteins in the stomach?
Pepsin
ExplanationPepsin digests proteins in the stomach.
#2
Where does most of the absorption of nutrients occur in the digestive system?
Small intestine
ExplanationNutrient absorption primarily occurs in the small intestine.
#3
What is the function of the enzyme amylase?
To break down carbohydrates
ExplanationAmylase breaks down carbohydrates.
#4
Which of the following is NOT a part of the alimentary canal?
Liver
ExplanationThe liver is not part of the alimentary canal.
#5
What is the function of the epiglottis during swallowing?
To close off the trachea
ExplanationThe epiglottis closes off the trachea during swallowing.
#6
Which of the following is NOT a function of saliva in the digestive system?
Breaking down proteins
ExplanationSaliva does not break down proteins in the digestive system.
#7
Which organ produces bile?
Liver
ExplanationBile is produced by the liver.
#8
What is the primary function of the large intestine?
Absorption of water and electrolytes
ExplanationThe large intestine primarily absorbs water and electrolytes.
#9
Where are most digestive enzymes produced?
Pancreas
ExplanationMost digestive enzymes are produced in the pancreas.
#10
What is the function of villi in the small intestine?
To increase surface area for absorption
ExplanationVilli increase the surface area for absorption in the small intestine.
#11
What is the pH level of the stomach during digestion?
Highly acidic (pH 1-2)
ExplanationThe pH level of the stomach during digestion is highly acidic, ranging from 1 to 2.
#12
Which of the following is NOT a component of pancreatic juice?
Pepsin
ExplanationPepsin is not a component of pancreatic juice.
#13
What is peristalsis?
The movement of food through the digestive tract
ExplanationPeristalsis refers to the movement of food through the digestive tract.
#14
Which hormone stimulates the release of gastric juice in the stomach?
Gastrin
ExplanationGastrin stimulates the release of gastric juice in the stomach.
#15
What is the function of the enzyme maltase?
To break down disaccharides into monosaccharides
ExplanationMaltase breaks down disaccharides into monosaccharides.
#16
Which of the following is a function of the large intestine?
Absorption of water and electrolytes
ExplanationThe large intestine absorbs water and electrolytes.
#17
What is the function of the enzyme lactase?
To break down lactose into glucose and galactose
ExplanationLactase breaks down lactose into glucose and galactose.