Class 7 Nutrition in Animals Extra Questions and Answers

Class 7 Nutrition in Animals Extra Questions and Answers

 

Class 7 Nutrition in Animals Extra Questions and Answers | Class 7 Science Extra Question Answer | for all the students of CBSE / ICSE exams

 

Define Digestion?

Digestion refers to the process of breaking down complex food components into simpler substances.

 

Define Alimentary Canal?

The canal is divided into six compartments: (1) the buccal cavity, (2) the food pipe or esophagus, (3) the stomach, (4) the small intestine, (5) the large intestine ending in the rectum, and (6) the anus. The alimentary canal is made up of these components (digestive tract).

 

What is ingestion?

Food is taken into the body through the mouth. The process of taking food into the body is called ingestion

 

Define the Large intestine and its functions?

The large intestine is wider and shorter than the small intestine. It is about 1.5 meters in length. Its function is to absorb water and some salts from the undigested food material. The remaining waste passes into the rectum and remains there as semi-solid feces. The fecal matter is removed through the anus from time to time. This is called egestion.

 

Define Nutrition and What are the five steps of nutrition in animals?

The process of taking in food and utilizing it by an animal is called animal nutrition. Nutrition in animals takes place in five steps: Ingestion, Digestion, Absorption, Assimilation, and Egestion.

 

Define the following terms:-

 

Ingestion :

Ingestion is the process of taking food into the body.

 

Digestion :

The process of breaking down large, insoluble substances into small, water-soluble particles (which can be absorbed by the body) is called digestion.

 

Absorption :

The process of digested food passing through the intestinal wall into the bloodstream is called absorption

 

Assimilation :

Assimilation is the process by which the absorbed food is used for energy, growth, and repair by the body cells.

 

Egestion:

Egestion is the process of removing the undigested food from the body.

 

Alimentary Canal :

A long tube running from mouth to anus of a human being (or other animals) in which digestion and absorption of food take place is called the alimentary canal. The alimentary canal is also known as the gut or digestive tract.

 

Fill in the blanks:-

Peristalsis is the process of food moving forward in the……….[ alimentary canal]

The ……….is the largest gland in the body. [liver]

The food from the mouth passes through the esophagus by …….[peristalsis]

……….usually clears a blockage in the windpipe caused by food particles.[ Coughing]

………is a condition in which a person passes out watery stools frequently.[ Diarrhea]

………is the loss of water from a person’s body through watery stools.[ Dehydration]

…….is a solution of sugar and salt in water.[ Oral Rehydration Solution (ORS)]

……….is the partially digested food in a cow’s rumen.[ Cud]

The process of bringing the cud back to the mouth of the animal and chewing it again is known as ………….[rumination]

Chapter 2 – Class 7 Science Nutrition in Animals NCERT Solutions

Nutrition in Plants

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