WHAT’S IN MY FOOD? APPLE Image Credit: http://2.bp.blogspot.com/Image credit: http://farm4.static.ﬂickr.com/ _uqBx13aymCE/TC704swH-7I/AAAAAAAACjc/ 3224/2350015548_36c1d71a1d.jpg qG2n3U4Frvg/s1600/3458436097_2a23292044.jpg By Yuki Ueno Peters
WHY DID I CHOOSE THIS FOOD? I chose this food because I thought that if I were to investigate an article of food, why not look at something that I eat frequently, so the next time I eat it, I will be completely aware of what exactly I am eating?I am going to look at 1 apple. Unit: Apple(s)
SOURCE FOR NUTRITION INFORMATION Image credit: http:// www.bioch em.uwo.ca/ fac/yang/ coloured_te st_tubes.jpg Source for Nutrition Information:My Experiment for Starch, Glucose, Protein, and Fat
STARCH TEST RESULTS Observation: The sample maintained its normal state wheniodine was poured over it, therefore not containing any starch.Procedure: In order to test foods for starch, you will ﬁrst need the article of food youwould like to test, as well as a supply of iodine. You will then have to ﬁll an eyedropper withthe iodine, and with the food on some sort of plate or tray, drop a few drops on it. Makesure to not under-do or overdo the iodine, because this can heavily affect your results. If thesample turns black, that is a sign of starch in whatever food you chose to examine. Comparing the results from my experiment and research... I found that both sources tell us that apples have almost no protein at all. The apple did not turn black therefore... Present or Not Present: Not Present Image Credit: http:// www.jcrows.com/Iodine iodine_1oz_lg.jpg
Image Credit: http:// upload.wikimedia.org/wikipedia/commons/6/6a/ GLUCOSE TEST RESULTS Sugar_cubes.jpg Observation: I noticed a change of color in the Benedict’s Solution as it transformed somewhere in between brick-red and yellow. Comparing the results from my experiment and research... I found that both sources tell us that apple contain a lot of glucose. The apple did turn brick-red and yellow therefore... Present or Not Present: Present Procedure: When testing foods for glucose, you will need a test tube, the article of food you wish to test, and this time instead of iodine, a liquid called Benedict’s Solution will be used. What will be done >irst in this process is the mixing of food and distilled water, which will be followed by carefully pouring the product into an eyedropper. You will then add 40 drops of the mix into the test tube that you prepared earlier. Finally, add 10 drops of Benedict’s Solution, and heat the test tube that you prepared earlier to around 40‐50 degrees celcius. If you notice any change of color in the liquid (green, yellow, or brick‐red), it is a sign of glucose in whatever food you are examining.
PROTEIN TEST RESULTS Observation: I did not notice a change of color in the Biuret Reagent. Comparing the results from my experiment and Biuret Reagent research... I found that both sources tell us that apples have almost no protein at all. Image Credit: http:// secure.sciencecomp any.com/Assets/ images/nc2083n.jpg The Biuret Reagent did not turn purple therefore... Present or Not Present: Not PresentProcedure: The test that will show whether or not the food that we are examining contains protein is called, the Biuret test. In order to preform this test, >irst you will need to add a few drops of Biuret reagent to your sample. Then, put the test tube in hot water, and if you notice a change in color (purple), protein is present in the sample that you are testing.
FAT TEST RESULTS Observation: The piece of paper did not turn translucent.Image Credit: http://www.longislandpress.com/wp-content/uploads/ Comparing the results from my experiment and2010/09/36GreenPage.jpg research... I found that both sources tell us that apples don’t contain fat. The piece of paper did not turn translucent therefore... Present or Not Present: Not Present Procedure: Smudge the sample on a piece of paper, and see if it becomes translucent. If it does, it contains fat.
WHAT HAPPENS TO THE APPLE INEACH PART OF THE DIGESTIVE SYSTEM? Mouth: Chews the apple into tiny pieces, to make the work easier for the stomach. Esophagus: The esophagus takes the apple to the stomach. Stomach: The apple is further broken down by acids (chemical and enzymatic digestion), slowing making its way into the small intestine. Small Intestine: All of the apple’s nutrients are extracted beforeImage Credit: http://brookingsapbiology.wikispaces.com/ﬁle/view/ human_digestive_system.jpg/212015132/ releasing them into the veins. human_digestive_system.jpg Liver: The liver removes toxins from the apple and Rectum: The waste is stored in the produces bile.rectum until it is time to get rid of it. Pancreas: The pancreas makes and delivers digestive juices. Anus: The anus is where the waste Large Intestine: The parts of the food that are leaves your body/digestive system. impossible to digest are moved along the large intestine, which sends it to the rectum.
WHAT ENZYMES ACT ON THE FOOD, WHAT DO THEY DO TO THE FOOD AND WHY? Apple Image Credit: http:// www.thefatlossauthority. com/fat_loss_tips/wp- content/uploads/ 2011/02/calories-in-an- apple.jpgEnzymes (such as enzymes in the stomach, and small intestine) speed up the process of breaking down food. Without enzymes, this task would take a very long time.
WHERE THE FOOD GETS ABSORBED INTO THE BLOOD STREAM Small Intestine Image Credit: http:// www.daviddarling.info/images/ small_intestine.jpg Small Intestine: All of the apple’s nutrients are extracted before releasing them into the veins.
WHICH PARTS OF YOUR BODY WILL USE THE FOOD AND WHAT FOR? Apple Nutrient: Glucose Image Credit: http:// www.thefatlossauthority.com/ fat_loss_tips/wp-content/ uploads/2011/02/calories-in-an- apple.jpg Blood - The apple’s nutrients are released into the bloodstream, where they will be moved throughout the body. This is done in order to maintain a healthy body. Out the anus - Some of the food is turned into waste, where itleaves the digestive system/body through the rectum, out the anus.
THANK YOU FOR Image Credit: http://media02.hongkiat.com/wallpaper/apple/Blue- Aqua-Apple.png Image Credit: http:// healthylifecarenews.co m/wp-content/uploads/ 2011/05/apple.jpgWATCHING!