| Consider the following statements with reference to digestion in grass eating animals. |
| 1. They quickly swallow the grass and store it in a separate part of the stomach called rumen. |
| 2. Partially digested food in the rumen is called cud. |
| 3. In ruminants, the cellulose of the food is digested by the action of certain bacteria which are not present in humans. |
| Which of the statements given above are collect? |
A) 1 and 2
B) 1 and 3
C) 2 and 3
D) All of these
Correct Answer: D
Solution :
[d] Grass eating animals quickly swallow the grass and store it in a separate part of the stomach called 'rumen'. Here, the food gets partially digested and is called cud. But later the cud returns to the mouth in small lumps and the animal chews it. This process is called rumination. These animals are called ruminants. The grass is rich in cellulose, a type of carbohydrate. Many animals including humans, cannot digest cellulose. Ruminants have a large sac-like structure between the small intestine and large intestine. The cellulose of the food is digested here by the action of certain bacteria which are not present in humans..
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