NCERT Question 2 - Chapter 2 Class 7 - Nutrition in Animals

Mark ‘T’ if the statement is true and ‘F’ if it is false:

1. Digestion of starch starts in the stomach. (T/F)
2. The tongue helps in mixing food with saliva. (T/F)
3. The gall bladder temporarily stores bile. (T/F)
4. The ruminants bring back swallowed grass into their mouth and chew it for some time. (T/F)

Answer:

  (a)  

Food is taken into the body through the mouth. Digestion starts as soon as we put the food in our mouth .

So, the statement is False .

(b)

Tongue helps in mixing saliva with the food. 

So, the statement is True

(c) 

The liver secretes a liquid juice called bile into the small intestine. It is stored in the Gall Bladder .

So, the statement is True .

(d) 

• Cows and Buffaloes quickly swallow their leafy food and store it in their Rumen .
• The food gets partially digested in the rumen and is called Cud .
• After sometimes, when the cow is resting the cud from rumen is brought back to the mouth of the cow in small amounts.
• Cow now chews the cud thoroughly.

So, the statement is True .