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
pancreas
nose
mouth
Explanation:

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

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

3. the mouth ahs the following except?

toes
teeth
saliva
tongue
Explanation:

4. saliva serves the following function in the mouth.

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

5. what is a bolus?

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

7. which part of the digestive system produces hydrochloric acid

rectum
stomach
tongue
bile
Explanation:

8. which part connects the mouth and the stomach

esophagus
small intestines
mouth
large intestines
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 bile juice
produces hydrochloric acid
produces pancreatic juice that aids in food digestion
Explanation:

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

small intestines
anus
rectum
large intestines
Explanation:

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

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

13. where does absorption of digested food occur?

small intestines
mouth
mouth
large intestines
Explanation:

14. where does absorption of water occur?

liver
gall bladder
small intestines'
large intestines
Explanation:

15. where is undigested food materials stored temporarily?

pancreas
anus
rectum
large intestines
Explanation:

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

rectum
anus
walls of the small intestines
mouth
Explanation:

17. the major types of teeth are- in number

2
3
7
4
Explanation:

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

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

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

canine teeth
milk teeth
premolar teeth
molar teeth
Explanation:

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

chewing food
biting food
cutting food
tearing food
Explanation:

21. molars have how many roots?

6
1
3
none
Explanation:

22. where are canine teeth located in the mouth?

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

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

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

24. which teeth type has two roots?

incisors
premolar
canines
molars
Explanation:

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

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

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

molars are large while premolars are small
molars have three roots while premolars have two roots
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?

2
1
none
8
Explanation:

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

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

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

esophagus
liver
stomach
mouth
Explanation:

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

candy
sweetcakes
chewing gums
carrots
Explanation:

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

Lungs
Stomach
Mouth
Liver
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
Liver
Pancreas
Kidneys
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?

Filtering blood
Absorbing nutrients
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?

Kidneys
Gallbladder
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?

Breaking down food
Storing waste
Producing bile
Absorbing nutrients
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
Liver
Intestines
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?

Stomach
Pancreas
Esophagus
Gallbladder
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
Break down food
Store waste
Stimulate growth
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?

Esophagus
Stomach
Pancreas
Intestines
Explanation:

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