3.The main function of the digestive system is to A.Secrete chemical product from food
B. breakdown large molecules into smaller one
C. excrete oxygen and carbon dioxide.
D. remove dissolved wastes from the body
4. Which part of the digestive system eliminates waste in the body?
A. Liver
B. Stomach
C. Small intestine
D. Large intestine
5. Which of these speeds up chemical reactions?
A. Enzymes
B. Proteins
C. Water
D. Nutrients
6. Which part of the digestive system secretes bile?
A. Stomach
B. Gall Bladder
C. Liver
D. Small intestine
7. If you want to maintain a healthy body, which of the following are you going to practice?
A. Eat food with oils and salts to taste the food batter.
B. Eat chocolates every day to have energy.
C. Eat more rice to supply energy needed by the body.
D. Eat fruits and vegetables in every meal to gain enough nutrients
8. Final digestion of the food materials takes place in the villi of the _
A. Small intestine
B. Large intestine
C, Stomach
D. Esophagus
9. Which of the following processes refers to an alternating wave of contraction allowing the food to move down the stomach?
A, Excretion
B. Digestion
C. Peristalsis
D. Nutrition
10. Trace the pathway of food

A. Mouth, esophagus, stomach, large intestine, small intestine
B. Mouth, esophagus, stomach, small intestine, large intestine
C. Mouth, stomach, esophagus, large intestine, small intestine
D. Mouth, esophagus, small intestine, stomach, large intestine
11. What do you call the disease where the body cannot produce enough red blood cells?
A. Iron Deficiency
B. Calcium Deficiency
C. Zinc Deficiency
D. Iodine Deficiency
12. Which process happens when the nutrients are delivered to the cells and tissues in the body?
A. Absorption
B. Assimilation
C. Excretion
D. Ingestion
13. When the body does not receive or absorb necessary amount of nutrients , what will it experience?
A. Nutrient Deficiency
B. Peptic Ulcer
C. Colon Cancer
D. Diarrhea
14. How is digestive system connected to the circulatory system?
A. The food eaten cannot affect the circulatory system.
B. The food gives nutrients that is absorbed by the liver and then transported throughout the body
C. The nutrients from the food can be absorbed by the bloodstream and delivered throughout the body
D. The nutrients absorbed and assimilated by in the stomach and will be distributed by to the body throughout the pancreas.
15. Why is digestion important?
A. It creates food for the body.
B. It breaks the muscles into smaller pieces.
C. It supplies chemicals to help achieve healthy body.
D. It is responsible in getting nutrients from the food.​