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

intestines
mouth
nose
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?

saliva
toes
tongue
teeth
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?

small round balls formed as the tongue rolls the chewed food
end product after digestion is compete
a disease that affects the mouth
saliva component
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
storing food temporarily before going in the small intestines
chewing food into small particles
Explanation:

7. which part of the digestive system produces hydrochloric acid

stomach
bile
tongue
rectum
Explanation:

8. which part connects the mouth and the stomach

small intestines
mouth
large intestines
esophagus
Explanation:

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

stomach juice
bile
gastric juice
hydrochloric acid
Explanation:

10. what is the function of the pancreas?

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

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

rectum
anus
large intestines
small intestines
Explanation:

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

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

13. where does absorption of digested food occur?

mouth
large intestines
small intestines
mouth
Explanation:

14. where does absorption of water occur?

gall bladder
large intestines
liver
small intestines'
Explanation:

15. where is undigested food materials stored temporarily?

rectum
anus
large intestines
pancreas
Explanation:

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

rectum
walls of the small intestines
anus
mouth
Explanation:

17. the major types of teeth are- in number

3
7
4
2
Explanation:

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

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

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

canine teeth
milk teeth
molar teeth
premolar teeth
Explanation:

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

biting food
chewing food
cutting food
tearing food
Explanation:

21. molars have how many roots?

3
6
1
none
Explanation:

22. where are canine teeth located in the mouth?

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

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

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

24. which teeth type has two roots?

premolar
molars
incisors
canines
Explanation:

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

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

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

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

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

1
8
none
2
Explanation:

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

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

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

stomach
liver
esophagus
mouth
Explanation:

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

carrots
sweetcakes
chewing gums
candy
Explanation:

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

Mouth
Stomach
Liver
Lungs
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?

Kidneys
Intestines
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
Storing waste
Producing enzymes
Filtering blood
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
Stomach
Pancreas
Kidneys
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?

Liver
Pancreas
Intestines
Gallbladder
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?

Absorbing nutrients
Producing bile
Producing enzymes
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?

Pancreas
Stomach
Gallbladder
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?

Store waste
Stimulate growth
Break down food
Produce energy
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?

Stomach
Esophagus
Intestines
Pancreas
Explanation:

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