PPT: Food & Nutrients | Science & Pedagogy Paper 2 for CTET & TET Exams - CTET & State TET PDF Download

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Food & Nutrients
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Food & Nutrients
Nutrition
Nutrition
Process of obtaining 
nutrients or food is called 
nutrition. Nutrients are the 
organic or inorganic 
substances which help in our 
survival and maintaining 
proper health.
Macro Nutrients
These nutrients are required 
by body in large amount. E.g. 
carbohydrate, fat and 
protein.
Micro Nutrients
These nutrients are required only in minute or very small amount. 
e.g., minerals and vitamins. Micro nutrients basically help in 
regulation of different functions of body.
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Food & Nutrients
Nutrition
Nutrition
Process of obtaining 
nutrients or food is called 
nutrition. Nutrients are the 
organic or inorganic 
substances which help in our 
survival and maintaining 
proper health.
Macro Nutrients
These nutrients are required 
by body in large amount. E.g. 
carbohydrate, fat and 
protein.
Micro Nutrients
These nutrients are required only in minute or very small amount. 
e.g., minerals and vitamins. Micro nutrients basically help in 
regulation of different functions of body.
Sources of Food
Plant Sources
Food can come from plant sources and contains vital nutrients 
like carbohydrates, fats, proteins, vitamins, and minerals.
Animal Sources
Food can come from animal sources providing essential 
nutrients for human consumption.
Fungi and Bacteria
Some foods, like mushrooms, come from fungi, and fermented 
products like bread, cheese, and yogurt involve bacteria.
Food is essential for providing nutritional support to organisms. Let's 
explore the sources of food in detail.
Page 4


Food & Nutrients
Nutrition
Nutrition
Process of obtaining 
nutrients or food is called 
nutrition. Nutrients are the 
organic or inorganic 
substances which help in our 
survival and maintaining 
proper health.
Macro Nutrients
These nutrients are required 
by body in large amount. E.g. 
carbohydrate, fat and 
protein.
Micro Nutrients
These nutrients are required only in minute or very small amount. 
e.g., minerals and vitamins. Micro nutrients basically help in 
regulation of different functions of body.
Sources of Food
Plant Sources
Food can come from plant sources and contains vital nutrients 
like carbohydrates, fats, proteins, vitamins, and minerals.
Animal Sources
Food can come from animal sources providing essential 
nutrients for human consumption.
Fungi and Bacteria
Some foods, like mushrooms, come from fungi, and fermented 
products like bread, cheese, and yogurt involve bacteria.
Food is essential for providing nutritional support to organisms. Let's 
explore the sources of food in detail.
Plant Foods
Roots
Modified roots like carrot, turnip, and 
beetroot store food. Rich in carbohydrates, 
they're used for food, animal feed, and 
producing starch, alcohol and beer.
Stems
Though primarily for support, stems like 
sugarcane store food. Modified stems 
include potato (stem tuber) and ginger 
(underground stem).
Leaves
Green leaves such as spinach, cabbage, 
and curry leaves provide important calcium 
sources.
Green plants are primary food sources with approximately 2000 cultivated species.
Edible Parts of the Plant:
Seeds
Used as grains (rice, wheat, maize), pulses 
(grams, peas, beans), and oil seeds 
(groundnut, sesame, coconut, sunflower).
Fruits
Ripened plant ovaries containing seeds. 
Some botanical fruits like tomatoes and 
eggplants are eaten as vegetables.
Vegetables
Include root vegetables (potatoes, carrots), 
leaf vegetables (spinach), stem vegetables 
(asparagus), and inflorescence vegetables 
(broccoli). Many herbs and spices are also 
vegetables.
Page 5


Food & Nutrients
Nutrition
Nutrition
Process of obtaining 
nutrients or food is called 
nutrition. Nutrients are the 
organic or inorganic 
substances which help in our 
survival and maintaining 
proper health.
Macro Nutrients
These nutrients are required 
by body in large amount. E.g. 
carbohydrate, fat and 
protein.
Micro Nutrients
These nutrients are required only in minute or very small amount. 
e.g., minerals and vitamins. Micro nutrients basically help in 
regulation of different functions of body.
Sources of Food
Plant Sources
Food can come from plant sources and contains vital nutrients 
like carbohydrates, fats, proteins, vitamins, and minerals.
Animal Sources
Food can come from animal sources providing essential 
nutrients for human consumption.
Fungi and Bacteria
Some foods, like mushrooms, come from fungi, and fermented 
products like bread, cheese, and yogurt involve bacteria.
Food is essential for providing nutritional support to organisms. Let's 
explore the sources of food in detail.
Plant Foods
Roots
Modified roots like carrot, turnip, and 
beetroot store food. Rich in carbohydrates, 
they're used for food, animal feed, and 
producing starch, alcohol and beer.
Stems
Though primarily for support, stems like 
sugarcane store food. Modified stems 
include potato (stem tuber) and ginger 
(underground stem).
Leaves
Green leaves such as spinach, cabbage, 
and curry leaves provide important calcium 
sources.
Green plants are primary food sources with approximately 2000 cultivated species.
Edible Parts of the Plant:
Seeds
Used as grains (rice, wheat, maize), pulses 
(grams, peas, beans), and oil seeds 
(groundnut, sesame, coconut, sunflower).
Fruits
Ripened plant ovaries containing seeds. 
Some botanical fruits like tomatoes and 
eggplants are eaten as vegetables.
Vegetables
Include root vegetables (potatoes, carrots), 
leaf vegetables (spinach), stem vegetables 
(asparagus), and inflorescence vegetables 
(broccoli). Many herbs and spices are also 
vegetables.
Animal Food Sources
Tertiary Consumers
Humans eating fish
Secondary Consumers
Humans eating animals
Primary Consumers
Humans eating plants
Animals provide food directly through meat and organs, or indirectly through products like milk, eggs, and honey.
Trophic levels show an organism's position in a food chain. Most food chains contain two to four levels, with humans 
feeding at multiple levels as omnivores.