Science Class 7th

21. The enzymes in juice mix with the chyme and complete the digestion of food in the ________.

A) Small intestine

B) Large intestine

C) Throat

22. Small finger-like projections called ______, are present on the walls of the last part of the small intestine.

A) VilliĀ 

B) Thick hair

C) Both a & b

23. Villi slows down the flow of food through the small intestine and help in the absorption of the digested food into blood through _______.

A) Arteries

B) Capillaries

C) Both a & c

24. Large intestine is ______ part of digestive system.

A) Last

B) First

C) Middle

D) None of them

25. The undigested food is stored in _____before it is excreted through the anus.

A) Rectum

B) Gall bladder

C) Stomach

D) None of them

26. Liver is the largest and heaviest digestive gland, located on the upper right side of the _______.

A) Chest cavity

B) Pancreas

C) Esophagus

27. Liver is _______ in colour and secretes a digestive juice called the bile, which is secreted into small intestine.

A) Green

B) Red

C) Blue

D) Reddish brown

28. Pancreas is located near the _______ part of small intestine.

A) Last

B) First

C) Middle

D) None of them

29. Pancreas secret ________ which contains digestive enzymes.

A) Gastric juice

B) Pancreatic juice

C) Bile juice

30. Function of ________ in liver is to breaking of fats into small molecules.

A) Saliva

B) Gastric

C) Bile

D) None of these

31. Function of ________ in pancreas is to breakdown of proteins and sugar.

A) Saliva

B) Gastric

C) Bile

D) Pancreatic juice

32. Function of _______ in stomach wall is to breakdown of proteins and killing of germs.

A) Saliva

B) Gastric juice

C) Bile

D) None of them

33. _____ is a source of energy.

A) Food

B) Water

C) Non-vegetarian

D) None of these

34. ________ is frequent discharge of loose, watery fluid from the body.

A) Constipation

B) Diarrhea

C) Both of them

35. Diarrhea is a serious illness especially for _____ as large amount of water and minerals are lost from the body.

A) Babies

B) Elder

C) Aged

36. Patient suffering from diarrhea should be given solution of ____________ for dehydration and they must be taken to the doctor.

A) Salt and sugar

B) Sugar

C) Water

37. Constipation is condition when a person has hard _____that is difficult to expel.

A) Feces

B) Water

C) Liquid

D) Both b & c

38. Constipation is due to absorption of more water from the undigested food passing slowly through the __________.

A) Large intestine

B) Small intestine

C) Rectum

D) None of them

39. Drinking water,eating food full of fibers etc are treatment of _________

A) Constipation

B) Diarrhea

C) Both a & b

D) None of these

40. Biochemical process in living organisms involving the production of energy from glucose or other food molecules is called_____________.

A) Respiration

B) Digestion

C) Absorption

D) None of these