Macromolecules Lab Report

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Joey Chao 9/30/15 Period 6th Biology Macromolecules lab report I. Objective: What type of macromolecules are in my food? II. Background: When food is consumed, the body digests and breaks down the food particles. The food particles are broken down to macromolecules. The four macromolecules consist of carbohydrates, lipids, nucleic acids, and proteins. Carbohydrates provide energy to the body by allowing more ATP. Lipids are fat stored in the body and takes longer to breakdown to give energy to the body. Nucleic acids are codes that contain information such as DNA (Biology: The Dynamics of Life, Alton Biggs; Whitney Crispen Hagins; Chris Kapicka; Linda Lundgren; Peter Rillero; Kathleen G. Tallman; Dinah Zike). Proteins, which are made up of amino acids, allow muscle contractions, build up the nails and fair (Biology: The Dynamics of Life, Alton Biggs; Whitney Crispen Hagins; Chris Kapicka; Linda Lundgren; Peter Rillero; Kathleen G. Tallman; Dinah Zike). Carbs (4 calories per gram) – 13 grams – 52 calories Lipids (9 calories per gram)…show more content…
To see if there are macromolecules in food, we conducted a series of tests to see which of the macromolecules exist in the food. Since I chose Cheetos and tested to see if any macromolecules appeared in the Cheetos. We added many substances such as Iodine, Buirets, oil paper. The Iodine portrayed as the carbohydrates, Buirets solution tested for proteins, and the oil paper was for lipids. For test tube one, we added the grinded Cheetos added Iodine and it made a black color which tells the Cheetos contain carbohydrate. Next, we add the Buirets solution to the Cheetos and it turned into a greenish color which indicated it was positive for proteins. For lipids, we put the Cheetos onto the oil paper. If it leaves the oil paper white then its positive for lipids. The results confirmed my hypotheses to be true because the oil paper proved that Cheetos contained

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