1. Direction: Choose the letter that corresponds to the correct answer. Write it on the blank before the number.
1. Which part of the digestive system does digestion starts?
A. stomach
B. mouth
C. anus
D. small intestine
2. What do we call the process of breaking down of food.
A. digestion
B. respiration
C. precipitation
d. metabolism
3.It is a large organ that lined with layers of muscles where food is broken into smaller pieces.
A. Digestion
B. stomach
C. small intestines
D. large intestines
4. It is a process by which food is broken down into nutrients.
A. digestion
B. stomach
C. small intestines
D. large intestines
5. It is about 2.5 cm wide and 7m long coiled tube where food is finally digestive and absorbed.
A. digestion
B. stomach
C. small intestines
D. large intestines
6. Undigested food particles (like seeds, tough fruit pulp, and not properly chewed meat) are passed to the to be passed out the body during defecation.
A. digestion
B. stomach
C. small intestines
D. large intestines
7. When does the digestion happen?
A. As soon as we start to chew our food.
B. As soon as we cut the meat.
C. As soon as we extract fruit to juice.
D. As soon as we slice the fish.
8. It is bean-shaped paired organs which are about 4 to 5 inches long and 2 to 3 inches wide.
A. kidney
B. heart
C. lungs
D. brain 9. Which is not the function of kidney?
A. Remove urea from blood through filtering units called nephron.
B. Keep stable balance of salts and other substances in the blood.
C. Produce hormone that aids the formation of blood cells.
D. Create new cells in our body.​