NCERT Solutions for Class 6 Science Food – Where does it come from?
Usually, we have food three times a day. But have you ever wondered where this food comes from? In this article, we will discuss where does food come from?
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We all know that food consumed at a particular time of the day constitute a meal. Morning meal is called breakfast, food taken in the afternoon is called lunch and food took at night is called dinner. Foods are the substances from which organisms derive energy and requisites for its growth and maintenance. We will now talk about ingredients in food items.
Foods are eaten by living organisms
All living things need food. Plants manufacture their own food; animals are dependent on plants or other animals for their survival. We can easily group organism on the basis of the food they eat. There are 3 categories: –
Herbivores:- Animals eating plants and plants products are called herbivores. E.g:-Cow, deer, sheep, and elephant.
Carnivores:- Animals eating other animals such as lion and tiger are called carnivores.
Omnivores:- Animals eating plants and animals are omnivores. E.g:- Humans, crow, squirrels, and cockroaches.
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Sources of Food
Both plants and animals provide us food and a number of other useful products such as medicines, paper, timber, and fibers.
Plants as Source of Food
Cereals:- They is most important sources of food for man and animals. They are rich sources of carbohydrates. Eg: Wheat, rice, and maize.
Pulses:- they are a rich source of protein and are obtained from seeds of leguminous plants. Common plant pea, bean, soybeans, and gram.
Vegetables:- They are rich sources of vitamins, minerals, and roughage. The water content in the vegetable is high and their food value is low.
Fruits:– They have high water content, low food value, but are rich in minerals and vitamins.
Sugar:- It is produced by green plants through photosynthetic activity. In the case of sugarcane, the plant part used is the stem, while in sugar beet, it is the root.
Tea and Coffee:-They is common beverages. Tea is obtained from leaves, while coffee is obtained from seeds.
Spices:- They have no food value and are used for adding flavor to food. The major spices are a pepper, cardamom, ginger, turmeric. Other spices are cloves, saffron, fennel, cumin, coriander, asafoetida, and fenugreek
Oils:-Major oil-yielding plants are cotton, groundnut mustard, coconut and sunflower
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Animals as sources of Food
Milk yielding animals- Cow and buffalo.
Meat-yielding animals- Sheep, goat, and pig.
Poultry animals- Birds like hen, duck, and turkey.
Fish- Rearing and management of fish on a large scale is known as pisciculture
Honeybees- The rearing of honey bees on a large scale is known as apiculture
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