Question

Cud is the name given to the food of ruminants which is
(a) swallowed and undigested.
(b) swallowed and partially digested.
(c) properly chewed and partially digested.
(d) properly chewed and completely digested.


NCERT Class VIII
Science - Exemplar Problems

Chapter 2. Nutrition in Animals

Answer 1

swallowed and partially digested

Answer 2

Cud is the name given to the food of ruminants which is swallowed and partially digested.

• Ruminants such as cows graze on grass and directly swallow it.
• Certain enzymatic secretions during the passage and in the stomach partially digest the food.
• This food is now called Cud.
• It returns back to the mouth for the cow to chew it properly and then digest it fully.
• Ruminants consist of a four-chambered stomach which is named Rumen, Reticulum, omasum, and abomasum respectively.
• Mostly the food returns from the first stomach called Rumen.