INTERACTIONS THROUGH FOODFirst topic second term

BASIC CONCEPTS Food Photosynthesis Autotrophs Heterotrophs Carnivores Hervibores Omnivores Scavengers Animal source Vegetal source Energizers Constructors Protectors/regulatory

FOOD

Wikipedia: Food is any substance [1] that is consumed to

provide nutritional support for the body. It is usually of plant or animal origin, and contains essential nutrients, such as carbohydrates, fats, proteins, vitamins, or minerals. The substance is ingested by an organism and assimilated by the organism's cells in an effort to produce energy, maintain life, and/or stimulate growth.

FOOD

Bussines dictionary: Edible or potable substance (usually of

animal or plant origin), consisting of nourishing and nutritive components such as carbohydrates, fats, proteins, essential mineral and vitamins, which (when ingested and assimilated through digestion) sustains life, generates energy, and provides growth, maintenance, and health of the body.

ACTIVITY. FOOD

What are the similarities and differences with the definitions here and in the bitacora?

PHOTOSYNTHESISWhat is photosynthesis according to the image?

AUTOTROPH

Conifers, like other green plants, can't just reach in the fridge for a quick snack. They have to make their own food. Green plants are called autotrophs (or producer). Autotrophs use light energy from the sun to produce the food they need. To understand how this works, we need to learn about photosynthesis.

HETEROTROPH

When you get hungry, what do you do? You might decide to raid the refrigerator or try to convince your mom to take you to a fast food restaurant. You do those things because you are a heterotroph (or consumer). Heterotrophs are organisms that need to get their energy from the foods they eat. Humans and animals are heterotrophs — so are parasites like fleas, ticks, and tapeworms!

ANIMAL SOURCE FOOD

Animal source foods (ASF) include any food item that comes from an animal source such as meat, milk, fish, eggs, cheese and yogurt

VEGETAL SOURCE

Many plants are eaten as food. Seeds of plants are a good source of food for animals, including humans, because they contain the nutrients necessary for the plant's initial growth, including many healthy fats, such as Omega fats. In fact, the majority of food consumed by human beings are seed-based foods. Edible seeds include cereals (maize, wheat, rice, et cetera), legumes (beans, peas, lentils, et cetera), and nuts. Oilseeds are often pressed to produce rich oils - sunflower, flaxseed, rapeseed (including canola oil), sesame, et cetera.[5]

VEGETAL SOURCE

Fruits are the ripened ovaries of plants, including the seeds within. Many plants have evolved fruits that are attractive as a food source to animals, so that animals will eat the fruits and excrete the seeds some distance away. Fruits, therefore, make up a significant part of the diets of most cultures. Some botanical fruits, such as tomatoes, pumpkins, and eggplants, are eaten as vegetables.

VEGETAL SOURCE

Vegetables are a second type of plant matter that is commonly eaten as food. These include root vegetables (potatoes and carrots), leaf vegetables (spinach and lettuce), stem vegetables (bamboo shoots and asparagus), and inflorescence vegetables (globe artichokes and broccoli).

BENEFITS OF FOOD

energy giving foods protective foods body building foods

ENERGY GIVING FOOD

Energy is required by the body to do work and to perform all the physiological functions of the body. Carbohydrates like rice wheat, potato and fats like ghee and oil belong to this group.

BODY BUILDING FOOD

Our body needs to grow. Due to constant wear and tear in the body, new cells have to be built to repair the damaged parts. Proteins like milk, eggs, meat, cheese and dal help in body building.

PROTECTIVE FOOD

Vitamins and minerals belong to this group. Absence of these constituents cause deficiency diseases like rickets, beriberi etc. Vegetables and fruit are rich in vitamins and minerals.

FOOD CHART

Food according to function Major nutrient Food containing the

nutrient

Energy giving Carbohydrate and fat

Cereals like rice and wheatStarches like potato.Fat-ghee and oilSugar

Body building Protein

MilkMeat-Mutton, chiken, fishEgg whitePulses, like dals,gram,soya bean peas

Protective Minerals and vitamins

Vegetables specially green leafyvegetables like spinach, cabbageand Dietry fibre such as brinjal,beans and fruits

BIBLIOGRAPHY

Wikipedia Webster’s dictionary http://

www.tutorvista.com/content/biology/biology-i/food-nutrition-health/components-food.php

Bussines dictionary