Nutrition in Animals (Class VII)

Correct Answer: stomach

Correct Answer: has to detoxify the alcohol

During diarrhoea, there is an excessive loss of water from the body along with salts and sugar. For this, WHO recommends a home-made solution of water with dissolved salt and sugar known as oral rehydration solution (ORS).

The working of a stomach was an accidental discovery by an American army doctor, William Beaumont, when he saved a man named Alexis St. Martin who was badly hit by a shotgun.

Molar teeth are known as wisdom teeth.

The food absorbed by blood needs to be transported to each and every organ of the body in order to be used to build the complex substances required by the body. This process is known as assimilation.

The digested food is absorbed by blood to provide energy. The digestion of food is completed in small intestine and then absorption of food starts with the help of numerous small finger-like projections present in the small intestine known as villi.

The food, which is not digested in the body of amoeba, is left as residue and expelled out of the body. 

The passing of watery stools from the body is known as diarrhoea, which leads to dehydration, i.e. excess loss of water from the body.

Correct Answer: cows' gut contains certain bacteria capable of digesting cellulose

The nutrients which we intake are not directly absorbed by blood. They need to be broken down into simpler forms so that they can be used by the human body. Carbohydrates break down into glucose, proteins into amino acids and fats into fatty acids and glycerol. Bile juice is an example of a digestive juice.

Faecal matter is the waste material left after digestion of food, which needs to be removed out of the body. This process is known as egestion. Ingestion refers to the intake of food, assimilation to the use of digested food and digestion to the breakdown of complex food.

The nutrients which we intake are not directly absorbed by blood. They need to be broken down into simpler forms so that they can be used by the human body. Carbohydrates break down into glucose, proteins into amino acids and fats into fatty acids and glycerol.

Salivary amylase in the buccal cavity starts acting upon the carbohydrates and digests them. 

Correct Answer: to increase the surface area of food