Interactions through food

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INTERACTIONS THROUGH FOOD
First topic second term
BASIC CONCEPTS
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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.
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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.
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ACTIVITY. FOOD
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What are the similarities and differences with
the definitions here and in the bitacora?
PHOTOSYNTHESIS
What is
photosynthesis
according to the
image?
AUTOTROPH
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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
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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
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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
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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
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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
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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
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ENERGY GIVING FOOD
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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
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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
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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
Energy giving
Body building
Protective
Major nutrient
Food containing the nutrient
Carbohydrate and
fat
Cereals like rice and wheat
Starches like potato.
Fat-ghee and oil
Sugar
Protein
Milk
Meat-Mutton, chiken, fish
Egg white
Pulses, like dals,gram,soya
bean peas
Minerals and
vitamins
Vegetables specially green
leafy
vegetables like spinach,
cabbage
and 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
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