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

nose
pancreas
mouth
intestines
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
inhaling
enables the animals to move from one place to another
Explanation:

3. the mouth ahs the following except?

toes
teeth
tongue
saliva
Explanation:

4. saliva serves the following function in the mouth.

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

5. what is a bolus?

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

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

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

7. which part of the digestive system produces hydrochloric acid

bile
tongue
rectum
stomach
Explanation:

8. which part connects the mouth and the stomach

mouth
large intestines
esophagus
small intestines
Explanation:

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

bile
gastric juice
stomach juice
hydrochloric acid
Explanation:

10. what is the function of the pancreas?

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

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

rectum
small intestines
anus
large intestines
Explanation:

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

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

13. where does absorption of digested food occur?

mouth
mouth
large intestines
small intestines
Explanation:

14. where does absorption of water occur?

small intestines'
large intestines
liver
gall bladder
Explanation:

15. where is undigested food materials stored temporarily?

large intestines
anus
rectum
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

2
4
3
7
Explanation:

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

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

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

canine teeth
molar teeth
premolar teeth
milk teeth
Explanation:

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

tearing food
cutting food
biting food
chewing food
Explanation:

21. molars have how many roots?

3
6
1
none
Explanation:

22. where are canine teeth located in the mouth?

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

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

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

24. which teeth type has two roots?

premolar
incisors
molars
canines
Explanation:

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

they very sharp and pointed
they have three roots which are well developed.
they have a single root
they are longer than others
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 for chewing while premolars are for grinding food
molars are large while premolars are small
molars are deep rooted while premolars are shallow rooted
Explanation:

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

8
1
2
none
Explanation:

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

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

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

esophagus
stomach
liver
mouth
Explanation:

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

sweetcakes
candy
chewing gums
carrots
Explanation:

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

Liver
Stomach
Lungs
Mouth
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
Pancreas
Liver
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?

Producing enzymes
Filtering blood
Storing waste
Absorbing nutrients
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
Stomach
Gallbladder
Pancreas
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?

Storing waste
Absorbing nutrients
Breaking down food
Producing bile
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?

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?

Pancreas
Esophagus
Stomach
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?

Break down food
Produce energy
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?

Intestines
Esophagus
Pancreas
Stomach
Explanation:

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

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