The topic, Sources of food is mentioned in the CTET paper 2 science syllabus. This topic is directly taken from class 6 NCERT science book. It is the first chapter of this book. I have covered all the important details from this chapter at examination prospective but If you want to read that complete chapter, you can download the PDF given at the end of this article.
Sources of food
1. Introduction to Food Sources
- Food is essential for growth, energy, and maintaining health.
- All living beings need food for survival, which comes from plants and animals.
2. Types of Food Sources
- Plants as Food Sources:
- Plants are primary sources of food; they provide fruits, vegetables, grains, and seeds.
- Different parts of plants like roots, stems, leaves, and seeds are consumed (e.g., carrots - root, spinach - leaves, rice - seed).
- Animals as Food Sources:
- Animals provide food in the form of meat, milk, eggs, and fish.
- Animals like cows, goats, and buffaloes are used for dairy products, while hens and ducks provide eggs.
3. Categories of Edible Parts of Plants
We obtain foods directly from plants and we use different parts of plants as food.- Roots (e.g., carrots, radishes)
- Stems (e.g., potatoes, ginger)
- Leaves (e.g., spinach, lettuce)
- Flowers (e.g., cauliflower, broccoli)
- Fruits (e.g., mango, apple)
- Seeds (e.g., wheat, rice)
4. Sources of Food from Animals
- Meat: Obtained from animals like goats, sheep, and fish.
- Milk: Comes from animals like cows and buffaloes.
- Eggs: Commonly from hens and ducks.
- Honey: Produced by bees from flower nectar.
5. Food Habits of Animals
- Herbivores: Animals that eat only plants (e.g., cows, deer).
- Carnivores: Animals that eat only other animals (e.g., lions, tigers).
- Omnivores: Animals that eat both plants and animals (e.g., humans, bears).
6. Food Chain
- Food chains show the flow of energy from one organism to another.
- Plants (producers) are at the base of food chains, with herbivores and carnivores forming higher links.
7. Importance of Food Diversity
- A variety of food sources is essential for balanced nutrition.
- Diversity in food helps meet nutritional requirements and prevents dependency on limited food resources.
These key points highlight the essential concepts related to sources of food in the NCERT syllabus, including the different categories of food sources, the parts of plants used for food, and the food habits of various animals.
Sources of Food pdf download
I hope you have read the above topic carefully as this topic is a part of CTET Paper 2 Science syllabus. If you want to download planet earth in the solar system in PDF format just click the download link below. I have given the direct download link of this topic from Google Drive.