HARD
7th CBSE
IMPORTANT
Earn 100
Draw a well-labelled diagram to show the movement of the food in the oesophagus. Write the function of the oesophagus.
Important Questions on Nutrition in Animals
HARD
7th CBSE
IMPORTANT
Which part of the alimentary canal is involved in:
(a) Chewing of food
(b) Killing of bacteria
(c) Absorption of food
(d) Formation of faeces?
HARD
7th CBSE
IMPORTANT
You have two test tubes ‘A’ and ‘B’. Test tube ‘A’ contains some pieces of boiled corns while the test tube ‘B’ contains boiled and chewed corns. Which test tube will give blue-black colour with iodine solution? Why?
HARD
7th CBSE
IMPORTANT
Different types of teeth in our jaws have different functions, but they all work together to chew the food.
(a) Discuss the functions of each type of teeth.
(b) What inspiration do we get from our teeth that have different functions?
HARD
7th CBSE
IMPORTANT
Briefly describe nutrition in Amoeba with the help of labelled diagrams.
HARD
7th CBSE
IMPORTANT
Describe the process of digestion in ruminants.
MEDIUM
7th CBSE
IMPORTANT
What is the liver? Write its functions.
MEDIUM
7th CBSE
IMPORTANT
What is pancreas? Write its functions.
MEDIUM
7th CBSE
IMPORTANT
The bacteria present on uncleaned teeth react with leftover food and saliva and form ‘X’, a sticky layer, which causes tooth decay. Name the substance ‘X’. Which part of the teeth does it affect?
