class 6 sources of food
What is food?
· Food is fuel to our body.
· Food gives energy to our body for the proper functioning of our body
What are Nutrients?
· Nutrients are the substances required by our body to perform the basic function.
· Nutrients are obtained through our diet.
· Nutrients provide energy and regulate chemical processes in the body.
What are the functions of food?
· Food protects the body from various diseases and keep it fit and healthy.
· Food helps the body to grow and replace worn out cells.
· Food provides energy for various activities of the body.
What is Dish ?
· A Dish is a particular kind of prepared food.
· A Dish is ready to be served or ready to be eaten food item.
What are the Ingredients of food?
· Ingredient means any of the food or Substances that are combined to make a particular dish.
· Ex: Boiled rice ingredients are rice, water. Salt
· For Biryani recipe we need oil, onion, tomatoes, vegetables / meat, Some spices, water and much more.
What are the sources of food ?
· Plants and animals are both sources of food.
· From plants we get Fruits, Vegetables, Oil, Pulses Legumes etc.
· From animals we get Milk, Meat, Eggs, Honey etc.
How Plants gives us food?
· Green plants are producers.
· Green colour of the plants is due to the presence of pigment called chlorophyll.
· Plants prepare their food in the presence of sunlight, water through process a called photosynthesis.
· The food is prepared by the plants in the leaves.
· Food is sent to various part of plant such as root, stem, flower, fruit etc.
· Excess food prepared by plants are stored in different parts of the plant.
List the food stored in various parts of plant with example ?
Excess food prepared by plants are stored in different parts of the plant.
Root — Radish, Turnip, Carrot
Stem — Potato, Sugarcane, Ginger
· Leaves — Spinach, cabbage, coriander…
· Fruits — Banana, Mango, Apple.
· Flowers — Cauliflower, Broccoli
· Seeds — Wheat, Peas, Rice.
List the food that we get from animals?
· Milk from Cow, Buffalo, Goat, Camel.
· Milk is used to prepare various milk products such as cheese, butter, ghee, curd, ice cream
· Eggs from Hen, Duck, Quail.
· Meat from Hen, Duck, Goat, Fish, Crab.
· Honey from Honeybees.
· Honeybees collect nectar from flowers, they convert nectar into honey and store it in hives.
· Beehives are hexagonal in shape.
What are the food habits of animals?
· Animals cannot prepare their own food.
· Animals depend directly or indirectly on plants. to prepare their good.
What are the various types of animals?
Based on the food habits animals are Categorised into
· Herbivores
· Carnivores
· Omnivores
· Scavengers
· Parasites
What are Herbivores ?
· Herbivores are the animals that feed only on green plants.
· Herbivores have sharp, cutting tooth in front and flat grinding teeth at back
· Ex: Cow, Deer, Horses, Elephants etc.
What are Carnivores ?
· Carnivores are the animals that eat the flesh of other animals.
· Carnivores generally have long, sharp teeth, birds have strong pointed beaks to tear the flesh.
· Ex: Lions, Tiger, Wolf, Dog, Eagles etc…
What are Omnivores ?
· Omnivores are the animals that eat both plants and animals.
· Ex: Humans, Bear, crow, cockroach etc.
What are scavengers?
· Some Carnivores and Omnivores are called as scavengers.
· They mainly consume dead bodies of animals to keep the surroundings clean
· Ex: Crows, Jackals, Hyenas etc.
What are Parasites?
· Parasites are the small animals that depend on other living organisms for their food.
· Ex: Mosquitoes, fleas, leeches, bugs etc.
· Some parasites such as tapeworm, round worm, hook worm live inside the body of animal and eat the food after it is digested by animals
Define food chain ?
· Food chain is the series of events in an environment or ecosystem in which one living organism eats the other and that is subsequently eaten by larger organism.
· Food chain is the succession of transfers of matter and energy in the form of food from organism to another in ecology.
· Food chain shows that all animals depend directly / indirectly on green plants for their food
Ex: Plants → Grasshopper → Frog Snake Eagle
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