The human digestive system is a complex process that consists of breaking down large organic masses into smaller particles that the body can use as fuel. The breakdown of the nutrients requires the coordination of several enzymes secreted from specialized cells within the mouth, stomach, intestines, and liver. The major organs or structures that coordinate digestion within the human body include the mouth, esophagus, stomach, small and large intestine, and liver.
Here few questions to test your Knowledge in Digestive system
1. The liver plays vital roles in all of the following systems except the
A. nervous system.
B. digestive system.
C. excretory system.
D. circulatory system.
2. Vitamins and amino acids are produced in the large intestine by
C. the cells of the villi.
D. the reabsorption of water.
3. A function of the liver is to
A. produce glucagon.
B. break down blood cells.
C. regulate sodium and potassium levels.
D. secrete enzymes into the small intestine.
4. Products of the liver include
A. pepsin, gastrin and bile.
B. bile, proteases and urea.
C. bile, urea and blood proteins.
D. proteases, amylases and lipase.
5. If a person’s liver fails, which process listed below would stop?
A. Digestion of proteins.
B. Destruction of red blood cells.
C. Storage of starch between meals.
D. Reabsorption of water from the digestive tract.
6. The emulsification of fats is a result of the release of secretions from the
B. gall bladder.
C. small intestine.
D. salivary glands.
7. The emulsification of fat is carried out by
D. bicarbonate ions.
8. Bile causes the emulsification of
C. nucleic acids.
9. People who have their gall bladder removed have the most difficulty digesting
D. egg whites.
10. The gall bladder functions to
A. store bile.
B. digest fats.
C. store urine.
D. release sodium bicarbonate.