Water from the undigested food is absorbed mainly in the

The finger-like outgrowths of Amoeba helps to ingest food. However, the finger-like outgrowths of human intestine helps to

Cellulose rich food substances are good sources of roughage in human beings because

Animals are not:

Choose the correct order of terms that describes the process of nutrition in ruminants.

Four kinds of teeth present in human are ______, ______, _______ and ______.

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

Which teeth do you use for biting and cutting?

Name the juice secreted by salivary gland?

Name the parts of the alimentary canal where
(a) water gets absorbed from undigested food
(b) digested food gets absorbed
(c) taste of the food is perceived
(d) bile juice is produced

Record your observations

What do you understand by animal nutrition?

Explain the digestion of cellulose in the animals.

Why does a doctor put a glucose drip to a patient who has just been operated?

Name the type of carbohydrate that can be digested by ruminants but not by humans. Give the reason also.

'A' got her gall bladder removed surgically as she was diagnosed with stones in her gall bladder. After the surgery, she faced problems in digestion of certain food items when consumed in bulk. Can you tell which kind of food items would they be and why?

Choose the odd one out from each group and give reasons.
(a) liver, salivary gland, starch, gall bladder
(b) stomach, liver, pancreas, salivary gland
(c) tongue, absorption, taste, swallow
(d) oesophagus, small intestine, large intestine, rectum.

Write three functions of tongue

What happens when we do not clean our teeth after eating food.

Label the given figure as directed below in A to D and give the name of each type of teeth.
(a) The cutting and biting teeth as A
(b) The piercing and tearing teeth as B
(c) The grinding and chewing teeth as C
(d) The grinding teeth present only in adult as D.

Little Rishi (student of class VI) was watching his favourite cartoon serial on television. Suddenly he got hiccups. His elder brother Shubham who was sitting near by him gave him a glass of water and suggested not to eat too fast in a hurry. Little Rishi got confused as he had heard that 'hicki' comes when someone remembers. He asked his father. His father smiled and explained him that it is only a myth. He also explained him the proper scientific reason behind it.
(a) What is hiccup?
(b) Why do we get hiccup?
(c) What are the values shown by Rishi?

Open your mouth, look into a mirror and try to count the different types of teeth of teeth in your mouth. Record your observations in the table below:

(a) Did you observe any difference in the number of teeth? If yes, could you identify which type of teeth showed the difference?
(b) Compare the number and type of teeth in an adult (say your parents or cousins who have reached the age of 25-30 or more). Note your observation.

Explain the human digestive system with the help of labelled diagram.

How do ruminants digest the cellulose?