Available Answers

1. 1.

   Name any two animals that feed on liquid food only.

2. 2.

   How does food move in the upward direction during vomiting?

3. 3.

   Check point:

   1. Breaking down of food into simple compounds is called __________________.
      1. Digestion
      2. Nutrition
      3. Egestion
      4. Ingestion
   2. Bile juices are produced by __________________.
      1. Pancreas
      2. Small Intestine
      3. Liver
      4. Stomach
   3. During digestion, fats are changed into __________________.
      1. Glucose
      2. Amino acids
      3. Sugar
      4. Fatty acids
   4. Food gets partly digested in the __________________.
      1. Stomach
      2. Large intestine
      3. Pancreas
      4. Small intestine
   5. Saliva is produced by the salivary glands in the __________________.
      1. Stomach
      2. Mouth
      3. Pancreas
      4. Liver
   6. Which is the largest gland in our body?
      1. Liver
      2. Pancreas
      3. Stomach
      4. Large intestine
4. 4.

   True-False:

   1. Digestion starts in the mouth.
   2. The bile juice is stored in the gall bladder.
   3. Fat is completely digested in the mouth.
   4. The semi-digested food that is chewed again by ruminants is called cud.
   5. Our digestive system is also called alimentary canal.
5. 5.

   Fill in the blanks:

   1. The main step of nutrition in humans are ________________, ________________, ________________, ________________ and ________________.
   2. Mouth is also known as ________________.
   3. Amoeba digests its food in the ________________.
   4. The finger like projections present on the inner wall of small intestine are called ________________.
   5. Stomach is a ________________ bag.
   6. The special organ present in ruminant is ________________.
6. 6.

   Match the following:

   Column A	Column B
   Components of food	Changed form during digestion
   1. Carbohydrates	(a) No change
   2. Fats	(b) Sugar
   3. Proteins	(c) Fatty acids
   4. Vitamins	(d) Amino acids