WHERE FOOD COMES FROM

1. FOOD FROM PLANTS
GREEN PLANTS ARE KNOWN AS PRODUCERS
BECAUSE THEY PREPARE THEIR OWN FOOD .
THEY USE LIGHT, AIR (CARBON DIOXIDE) WATER
AND CHLOROPHYLL (THE GREEN PIGMENT IN
THEIR LEAVES) TO PREPARE THE PROCEES OF
PHOTOSYNTHESIS.
PROCESS OF
PHOTOSYNTHESIS

2.  DIFFERENT PLANTS PARTS SERVE AS SOURCES OF FOOD FOR US
.FRIUTS ,VEGETABLES,
CEREALS AND PULSES THAT WE EAT ARE OBTAINED FROM
DIFERENT PARTS OF PLANT.

3.  SEEDS –
PULSES SUCH AS MUNG BEAN ,CHICKPEA,KIDNEY BEAN AND
CEREALSWHEAT GRAINS ARE GROUND TO MAKE FLOUR (ATTA)
WHICH IS USED TO MAKE CHAPPATI, CUMMIN AND CORIANADER SEEDS.
FRIUTS AND VEGETABLES –
PLANTS ALSO PROVIDE US FRIUTS AND VEGETABLES SUCH AS APPLE,
MANGO AND OTHER FRIUTS SUCH AS BRINJAL AND TOMATO ,WHICH ARE
EATEN EITHER RAW AND ARE TERMED FRIUTS VEGETABLES.
FRIUTS AND
VEGETABLES SEEDS

4.  FOOD FROM ANIMALS
ANIMAL PRODUCES SUCHAS MEAT, EGG,HONEY,
MILK ,CHEESE,BUTTER AND CURD ARE EATEN BY HUMAN.
MEAT –PEOPLE COMMONALY EAT MEAT OF ANIMALS SUCH AS GOAT
,CHICKEN,FISH AND PRAWNS.
EGG-HEN’S EGG IS THE MOST COMMON BIRD EGG EATEN IN THE
WORLD. IT IS A RICH SOURCE OF PROTEIN AND VITAMIN.
HONEY – HONEY IS A SWEET LIQUID PRODUCED BY BEE. IT IS
COLLECTED FROM BEEHIVES.
MILK-MILK IS OBTIANED FROM COW , BUFFALO,CAMEL AND GOAT. IT
IS ARICH SOURCE OF PROTEIN.
MILK AND MILK PRODUCTS- PRODUCTS MADE FROM MILK ARE
KNOWN AS DIARY PRODUCTS
EG.PANEER,CHEESE, BUTTER, GHEE, CURD,CREAM

5. DIFFERENT ANIMALS HAVE DIFERENT FEEDING HABITS .THESE ANIMALS ARE
GROUPED INTO THREE TYPES: HERBIVORES, CARNIVORES AND OMNIVORES .
1.HERBIVORES-HERBIVORES ANIMALS ARE THOSE THAT EAT PLANT AND PLANT
PRODUCT.
EG. COW, DEER,GIRAFFE,SQUIRREL AND BUTTERFLY
2.CARNIVORES- CARNIVORES ARE THE ANIMALS THAT EAT FLESH OF OTHER
ANIMALS.
EG.LION, TIGER,OWL.FOX,JACKAL AND EAGLE
3.OMNIVORES-OMNIVORES ARE THE ANIMALS THAT EAT BOTH PLANTS AND THE
FLESH OF OTHER ANIMALS.
EG.BEAR,RACOON,CROW AND HUMAN BEINGS
SCAVANGERS AND DECOMPOSERS
INSTEAD OF HUNTING ANIMALS SOME,BIRDS AND EAT THE FLESH OF THAT ARE
ALREADY DEAD. THESE ANIMALS AND BIRDS ARE SCVANGERS.
SOME ORGANISM FEED ON AND DESTROY DEAD ANIMALS.THESE ORGANISM ARE
CALLED DECOMPOSERS.

6.  THE FOOD WE EAT CONSISTS OF DIFFERENT COMPONENTS OF NUTRIENTS. THERE
ARE SIX MAIN COMPONENTS OF FOOD:CARBOHYDRATES,FAT,PROTEIN,
VITAMINS,MINERALS AND ROUGHAGE.
CARBOHYDRATES
CARBOHYDRATES PROVIDE ENERGY TO YOUR BODY,WHICH KEEPS IT GOING
THROUHOUT THE DAY.THERE ARE TWO TYPESOF CARBOHYDRATES:SUGAR AND
STRACH.
EG. APPLE
FATS
FATS TOO PROVIDE ENERGY . THERE ARE TWO TYPES: SATURATED AND
UNSATURATED FATS.THOUGH FATS ARE ESSENTIAL FOR OUR BODY, EATING TOO MUCH
OF FOOD ITEMS RICH IN FAT CAN BE HARMFUL. EXCESS INTAKE OF FOOD CAN LEAD TO
OBESITY.
EG.BUTTER, GHEE, OIL
PROTEINS
PROTEINS ARE NEEDED BY OUR BODY FOR MUSCLE BUILDING AND REPARING WORN
OUT TISSUES.OUR MUSCLES ORGANS AND EVEN BLOOD ARE MADE UP OF MOSTLY
BLOOD.
EG.EGGS,MEAT,MILK,PULSES

7. VITAMINS
VITAMINS IS NEEDED FOR THE PROPER FUNCTIONING OF OUR BODY.THEY
HELIP US IN KEEPING OUR EYES , BONES , TEETH,GUM HEALTH. THERE 13
VITAMINS AND ARE CLASSIFIED INTO TWO TYPES :FAT SOLUBLE AND WATER
SOLUBLE
EG. FRUITS AND VEGETABLES
MINERALS
MINERALS ALSO HELPS US TO BE HEALTHY.MINERALS ALSO HELPS US FFOR
THE FORMATION OF BONES ,TEETH AND BLOOD CELLS . MINERALS ARE OF TWO
TYPES: MACROMINERALS AND TRACE MINERALS.
EG.MILK ,SPINACH, ORANGE AND IODINIZED SALT
ROUGHAGE
THE PORTION OF PLANTS FOOD THAT REMAIN UNDIGESTED AND HAVE ANY
NUTRIENTS TO OUR BODY IS CALLED ROUGHAGE HOWEVER HELS IN
MAINTAINING HELTHY DIGESTIVE SYSTEM
EG.CORN, CAULIFLOWER

9.  DEFICIENCY DISEASES OF CARBOHYDRATES
HYPOGLYCEMIA. HYPOGLYCEMIA, ALSO KNOWN AS LOW BLOOD SUGAR OR LOW BLOOD GLUCOSE,
OCCURS WHEN THE GLUCOSE LEVELS IN THE BLOOD DROP BELOW NORMAL. WHILE HYPOGLYCEMIA
IS OFTEN ASSOCIATED WITH DIABETES, IT CAN BE CAUSED BY A LACK OF CARBOHYDRATES IN
HEALTHY PEOPLE.
DEFICIENCY DISEASES OF FATS
FATS DEFICIENCY INCREASES THE RISK OF GETTING AFFECTED BY CANCER, ATHEROSCLEROSIS,
CORONARY HEART DISEASE, BEHAVIORAL PROBLEMS, DEPRESSION, COGNITIVE DECLINE, AND
CHRONIC INFLAMMATION. FURTHER, THEIR PRESENCE IN THE DIET IS ESSENTIAL FOR THE PROPER
ABSORPTION OF FAT-SOLUBLE VITAMINS LIKE VITAMIN A, D, E AND K.
DEFICIENCY DISEASES OF PROTEIN
KWASHIORKOR IS A SEVERE FORM OF MALNUTRITION, CAUSED BY A DEFICIENCY IN DIETARY
PROTEIN. THE EXTREME LACK OF PROTEIN CAUSES AN OSMOTIC IMBALANCE IN THE GASTRO-
INTESTINAL SYSTEM CAUSING SWELLING OF THE GUT DIAGNOSED AS AN EDEMA OR RETENTION OF
WATER.
DEFICIENCY DISEASES OF VITAMIN
VITAMIN DEFICIENCY OCCURS WHEN THERE IS INSUFFICIENT OR POOR DIETARY INTAKE OF
ESSENTIAL VITAMINS. INADEQUATE LEVELS OF VITAMINS MAY RESULT IN AN ARRAY OF MISERABLE
CONDITIONS AND MAKE THE BODY FEEBLE AND VULNERABLE TO MANY DISEASES.

10. HOLIDAY HOMEWORK
SCIENCE
DONE BY
STEVE PIUS MATHEW
6E