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Science food project 2


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Science food project 2

  1. 1. MY FOODChocolate Corn Flakes
  2. 2. WHY DID I CHOOSE THIS FOOD? Since that a lot of people around the globe eat chocolate cornflakes forbreakfast, I wanted to see how healthy this actually was.
  4. 4. TESTING PROCEDURES: STARCH TEST Grind up the food Put the ground up food in a test tube halffilled with water Put ten drops of iodine solution in Wait for the iodine solution to soak in thefood If the food turns black, that means that thefood contains starch If the food remains the same, that means thefood contains no or very little starch
  5. 5. TESTING PROCEDURES: GLUCOSE TEST Grind up the food and put the food in a testtube half filled with water Next put in ten drops of Benedicts Solutionin the test tube containing the food Than let the test tube heat up in a waterbath If the food contains sugar/glucose it will turngreen, yellow, red, or purple, depending on itssugar concentration
  6. 6. TESTING PROCEDURES: PROTEIN TEST Grind up the food and put it in a test tubehalf filled with water. Add ten drops of Biuret A and Biuret B each Than let the test tube heat up in a waterbath If the food turns light purple that means thatprotein is present in that food
  7. 7. TESTING PROCEDURES: PROTEIN TEST Grind up the food and smear it on to apiece of filter paper If the filter paper becomes translucent, thatmeans that the food contains fat
  8. 8. Digestive System
  9. 9. THE MOUTH In the mouth the corn flakes areground up by the teeth. Than the amylase (enzyme) in the salivabreaks down the starch Saliva helps the ground up corn flakesslip through the esophagus
  10. 10. THE STOMACH The stomachs digestive juices are mixedwith the corn flakes The digestive juices begin to breakdown the protein particles in the cornflakes Then the stomach releases hydrochloricacids which kill or inhibit bacteria
  11. 11. SMALL INTESTINE 1. THE DUODENUM The purpose of the duodenum is tobreak down the food Enzymes in the duodenum completebreaking down the protein particles intoamino acids Amino acids make up proteins Pancreatic amylase breaks down somecarbohydrates (including starch) intooligosaccharides
  12. 12. SMALL INTESTINE 2. THE ILEUM The purpose of the ileum is to absorbthe food The ileum absorbs the food by usingtiny finger-like villi on its surface The villi possess even smaller finger likemicrovilli therefore increasing surface area All the food has been broken downbefore so that the food would be smallenough to be absorbed by the villi This is where the foods nutrients areabsorbed into the blood stream The jejunum is another part in the smallintestine that is very similar to the ileumbut there are minor differences like theileum has more fat,etc
  13. 13. LARGE INTESTINE This where the corn flakes that didn’tget absorbed in the small intestine goes In the large intestine the water in thefood is absorbed The water is absorbed into thebloodstream It than gets mixed with mucus andbacteria, otherwise known as gut flora, andturns into feces
  14. 14. RECTUM/END OF DIGESTIVE SYSTEM The rectum is where the feces/cornflakes is temporarily stored in the last stageof digestion Than the feces is released through theanus
  15. 15. CONCLUSION Eating corn flakes gives you carbohydrates The body uses these carbohydrates as themain source of energy So eating corn flakes is healthy, but I thinkthat the healthiest choice is corn flakes withoutsugar and flavoring