Grade 4 Science And Technology – Human Body:The Digestive System Quiz

1. which one of the following is not a part of the digestive system

mouth
nose
intestines
pancreas
Explanation:

2. which of the following statements describes the function of the digestive system

breakdown of food into small particles that can be absorbed in the body
enables the animals to move from one place to another
reproduction
inhaling
Explanation:

3. the mouth ahs the following except?

teeth
tongue
saliva
toes
Explanation:

4. saliva serves the following function in the mouth.

cooks food
moistens food and helps in digestion.
chews food
quenches thirst
Explanation:

5. what is a bolus?

end product after digestion is compete
saliva component
small round balls formed as the tongue rolls the chewed food
a disease that affects the mouth
Explanation:

6. which one of the following is not among the functions of the stomach in digestive system?

producing hydrochloric acid that kills any germ that may be present
producing substances that helps in digestion of food
chewing food into small particles
storing food temporarily before going in the small intestines
Explanation:

7. which part of the digestive system produces hydrochloric acid

tongue
rectum
stomach
bile
Explanation:

8. which part connects the mouth and the stomach

esophagus
large intestines
small intestines
mouth
Explanation:

9. what is the name of the substances produced by gall bladder?

hydrochloric acid
gastric juice
bile
stomach juice
Explanation:

10. what is the function of the pancreas?

storing food
produces pancreatic juice that aids in food digestion
produces bile juice
produces hydrochloric acid
Explanation:

11. digestion is competed in which part of the digestive system?

large intestines
anus
small intestines
rectum
Explanation:

12. which one of the following is a function of the small intestine

storing undigested foods
completion of digestion and absorption of the digested foods.
excreting undigested materials
storing digested foods
Explanation:

13. where does absorption of digested food occur?

small intestines
large intestines
mouth
mouth
Explanation:

14. where does absorption of water occur?

large intestines
liver
gall bladder
small intestines'
Explanation:

15. where is undigested food materials stored temporarily?

large intestines
pancreas
rectum
anus
Explanation:

16. through which part is the undigested food material removed from the body.

walls of the small intestines
rectum
mouth
anus
Explanation:

17. the major types of teeth are- in number

4
2
3
7
Explanation:

18. the four major types of teeth differ from each other in two main ways, these are

color and shape
width and height
structure and function
shape and size
Explanation:

19. which one of the following is not among the four major teeth types?

molar teeth
canine teeth
premolar teeth
milk teeth
Explanation:

20. which one of the flowing statements matches the function of canine teeth

tearing food
cutting food
chewing food
biting food
Explanation:

21. molars have how many roots?

1
3
6
none
Explanation:

22. where are canine teeth located in the mouth?

at the front jaw
behind the molars
behind premolars
in-between incisors and premolars
Explanation:

23. which of the following statements describes the structure of molars well?

have two roots
flat chisel shaped
have wide, rough surface and three roots
they have one root
Explanation:

24. which teeth type has two roots?

canines
premolar
molars
incisors
Explanation:

25. the following are characteristics of canine teeth. Which one is not?

they are longer than others
they have a single root
they very sharp and pointed
they have three roots which are well developed.
Explanation:

26. what is the man difference between the structure of molars and premolars?

molars are for chewing while premolars are for grinding food
molars are large while premolars are small
molars are deep rooted while premolars are shallow rooted
molars have three roots while premolars have two roots
Explanation:

27. how many times should we brush our teeth in a day?

2
8
1
none
Explanation:

28. which one of the following is not way in which we care for our teeth?

avoiding sugar foods
brushing our teeth at least twice a day
eating sugary foods every morning
visiting the dentist regularly
Explanation:

29. during digesting of food, where is the food mixed with saliva

mouth
esophagus
stomach
liver
Explanation:

30. which of the following food is not harmful to our teeth

sweetcakes
carrots
candy
chewing gums
Explanation:

31. Where does digestion process start in the human body?

Liver
Lungs
Mouth
Stomach
Explanation:

The digestion process starts in the mouth where food is broken down by chewing and mixed with saliva.

32. Which organ produces bile to help with digestion?

Intestines
Kidneys
Liver
Pancreas
Explanation:

The liver produces bile which helps in the digestion and absorption of fats.

33. What is the main function of the small intestine in the digestive system?

Absorbing nutrients
Filtering blood
Storing waste
Producing enzymes
Explanation:

The small intestine is responsible for absorbing nutrients such as vitamins and minerals from the digested food.

34. Which organ is responsible for producing digestive enzymes like pepsin and gastric amylase?

Gallbladder
Kidneys
Pancreas
Stomach
Explanation:

The stomach produces digestive enzymes like pepsin and gastric amylase to break down proteins and carbohydrates.

35. What is the function of the large intestine in the digestive system?

Producing bile
Breaking down food
Absorbing nutrients
Storing waste
Explanation:

The large intestine is responsible for storing waste and absorbing water from the remaining undigested food.

36. Which organ stores bile produced by the liver until it is needed for digestion?

Pancreas
Gallbladder
Intestines
Liver
Explanation:

The gallbladder stores bile produced by the liver and releases it into the small intestine when needed for digestion.

37. What is the function of the pancreas in the digestive system?

Producing bile
Producing enzymes
Absorbing nutrients
Storing waste
Explanation:

The pancreas produces digestive enzymes that help break down carbohydrates, proteins, and fats in the small intestine.

38. Which part of the digestive system helps in the mechanical breakdown of food by churning and mixing it with digestive juices?

Gallbladder
Stomach
Pancreas
Esophagus
Explanation:

The stomach helps in the mechanical breakdown of food by churning and mixing it with digestive juices produced by gastric glands.

39. What is the purpose of enzymes in the digestive system?

Produce energy
Store waste
Stimulate growth
Break down food
Explanation:

Enzymes in the digestive system help break down food into smaller molecules that can be easily absorbed by the body for nourishment.

40. Which organ in the digestive system helps in the absorption of water and electrolytes from the digested food?

Pancreas
Intestines
Stomach
Esophagus
Explanation:

The intestines, both small and large, are responsible for absorbing water and electrolytes from the digested food before it is eliminated as waste.