CBSE Class 7 Science Chapter 2 - Nutrition in Animals (Worksheet)(#eduvictors)(#Class7Science)

Class 7 Science Chapter 2 - Nutrition in Animals (Worksheet)

Worksheet based on NCERT Class 7 Science Chapter

Fill in the blanks with suitable word(s)


1. Food is entered into the _________ cavity through mouth is called ________.


2. The alimentary canal stretches from ____________  to ___________.


3. Food is digested inside the stomach with the help of _________ juice.


4. Teeth are rooted in separate _________ in between the __________.




5. The inner walls of the small intestine have millions of small finger like projections called the ________.


6. Digestion of food starts in ___________ and gets completed in ___________.


7. The ___________ is the food pipe that carries food from the throat to the stomach


8. ___________ is the largest gland in the human body.

9. Name the part of the digestive canal is involved in:

   (i) absorption of food ________________.

   (ii) chewing of food ________________.

   (iii) killing of bacteria ________________.

   (iv) complete digestion of food ________________.

   (v) formation of faeces ________________.


10. Amoeba digests its food in the ____________ .


11. The undigested and unabsorbed residues are expelled out of the body as ________ through the __________.


12. Due to food poisoning or infection, one may pass watery stool frequently. This condition is known as ________.


13. Grass-eating animals like cow, buffalo etc. quickly swallow the grass and store it in a part of the stomach called
___________.

14. The faecal matter is removed through the anus from time-to-time. This process is called __________.


15. Name the doctor who discovered that food is churned inside stomach is ___________.


16. Liver seceretes a juice called _________ juice which is stored in a sac called ________ ________.


17. The saliva breaks down the ______ into sugars.


18. The digestive juice in stomach require _______ medium, which breaks down ________ into simpler subtances.


19. The main function of large intestine is to absorb _______ and some salts from the undigested food material.


20. To prevent dehydration, often a solution called ORS is given. ORS stands for _____________________.



Answers:
1: Buccal, Ingestion

2: mouth, anus

3: gastric

4: sockets, gums 

5: Villi

6: buccal cavity/ mouth, small intestine

7: oesophagus

8: Liver

9: (i) small intestine

9: (ii) buccal cavity

9: (iii) stomach

9: (iv) small intestine

9: (v) large intestine

10: Food vacuole

11: faeces, anus

12: diarrhoea

13: rumen

14: egestion

15: William Beaumont

16: bile, gall bladder

17: starch

18: acidic, proteins

19: water

20: Oral Rehydration Solution (ORS)


☞ See Also:
Ch 2 Nutrition in Animals
Ch2 Nutrition in Animals (MCQs)