Question

The digestion of food in human begins in the
(a) stomach (b) mouth
(c) small intestine (d) large intestine
villi are found on the inner walls of
(a) tongue
(b) stomach
() small intestine (d) large intestine
The largest chamber of the stomach of ruminants is
(a) omasum (b) reticulum
(c) abomasums
(D)rumen
Which of the following teeth are called cheek teeth?
(a) Premolars and molars
(b) Premolars and canines
( Premolars and incisors
(d) None of these
Which of the following processes take place through anus?
(a) Egestion
(b) Absorption and assimilation
(d) All of the above
(c) Ingestion and digestion​

Answer 1

1. Digestion of the food in humans beings from the mouth

• Food here is masticated by teeth and the carbohydrates are partially digested by enzymes in saliva.

• Food leaving the mouth is known as Bolus

2. Villi are present on the walls of small intestine

• They are finger like projections which increase surface area for the process of absorption

• They are supplied with abundance of blood vessels which carry the food to every cell of the body

3. The largest chamber in a ruminant stomach is Rumen

• An ideal ruminant stomach is four chambered with Rumen, Reticulum, Omasum and Abomasum

4. Cheek teeth comprises of Premolars and Molars

• As the name suggests,they are present near the cheek and help in chewing and grinding the food

5. Egestion occurs through anus

• Egestion is the process of expelling undigested food from the body

• It is regulated by the Anal Sphincter

Before the process of egestion,the undigested food is stored in Rectum in humans