Lab identifying macromolecules in food july Essay Example

body use for a quick burst of energy? A. For energy when no carbohydrates are available? B. For building body parts? Part Protein Test Station Card - Beirut Solution Materials

Substance tested - Protein solution Indicator - Beirut solution Test tubes Dropper Supplies to clean and dry test tubes 1.

This is the station where you will use Beirut's solution to test for the presence Of proteins. 2. Locate a test tube, the protein solution, and the Beirut solution. 3. Shake the protein solution.

Then add 1-2 drops into the test tube. 4. Now, add 2-3 drops of Beirut solution. Swirl the solutions together. 5. Record any observable change in color.

6. Replace all materials. Clean out your test tube using soap, water, and a test tube brush. Place your test tube into the rack to dry.

Lipid Test Station Card - Paper Bag Substance tested - Lipid (vegetable oil ) solution Indicator - Paper bag 1. This is the station where you will use the paper bag test to check for the presence of lipids (fats). 2. Obtain a test tube, the vegetable oil, and a piece of brown paper bag. 3.

Add 1-2 drops of vegetable oil to the brown paper. Record what you see. Describe how the paper looks. 4.

Repeat step 3 using water on a different piece of brown paper. Record what you see. 5. Compare your two results and come up with a good description of how the paper test can be used to test the presence of lipids.

. Replace all materials.

Clean out your work area. Macroeconomics Test Station Card - Benedicts solution Us absence tested -

Macroeconomics solution Indicator - Benedicts solution Hot water bath Test tube holder 1 . This is the station where you will use Benedicts solution to test for the presence of inconsistencies (simple sugars).

2. Locate a test tube, a test tube holder, the macroeconomics solution, and the Benedicts solution. 3. Add 4-5 drops of the macroeconomics solution to the test tube.

4. Now, add 4-5 drops of the Benedicts solution. Swirl the solutions together. 5. Carefully lace your test tube into the hot water bath using the test tube holder.

Caution: Water is HOT! ) 6. Record the change in color that is Seen (green indicates a low concentration of inconsistencies - brick red indicates a high concentration). Also, note how long it took for the color to change. 7.

Replace all materials. Clean out your test tube using soap, water, and a test tube brush. Place your test tube into the rack to dry. Polysaccharide Test Station Card - Logo's Iodine Us absence tested - Polysaccharide (Starch) solution Indicator - Iodine solution test tube Supplies to clean and dry Proceed re 1 . This is the station where you will test for the presence of polysaccharides (starch). .

Shake the polysaccharide (starch) solution. Then add 1-2 drops into the test tube. 3. Note the color of the iodine solution.

Now, add 1-2 drops of the Iodine solution. 4. Record the change in color tattoo observe. 5. Replace all materials.

Clean tryout well plate using soap and water. Place your well plate on the paper towel to dry. Cut and paste into lab notebook. Beirut's Solution initial Berets Solution Lab: Macromolecule - A Lesson in

Urinalysis A healthy diet abundant with foods that contain each of the macromolecules ensures proper function of all the body cells, tissues, organs, and organ systems.

If one or more are lacking, the body cannot function to provide us with all of our necessary needs.

Your kidneys filter waste products from your blood while retaining components your body needs -? including proteins and sugars. The kidneys take out waste material, minerals, fluids, and other substances from the blood to be passed in the urine. Serine has hundreds of different body wastes. What you eat, drink, how much you exercise, and how well your kidneys work can affect what is in your urine. Urine can contain important information about a patient's (human or animal) health status.

A test called a urinalysis, or "CIA", is done to check for infections of the urinary tract or for the presence of blood, glucose, or protein in the urine. The composition of urine varies depending on diet and activity. Urine is about 95% water, but it also contains urea and uric acid. Sometimes traces of amino acids can be found in urine, as well as a variety of electrolytes.

In this activity, you will be analyzing a "patient's" urine for the presence of carbohydrates, proteins, or lipids. Glucose is the type of sugar found in blood. Normally there is very little or no glucose in urine.

When the blood sugar level is very high, as in uncontrolled diabetes, the sugar spills over into the urine. Glucose can also be found in urine when the kidneys are damaged or diseased. Some diseases and conditions can allow proteins to pass through the

filters of your kidneys, causing protein in urine.

Protein is normally not found in the urine. Owe levels of protein in urine are normal. Temporarily high levels of protein in urine aren't unusual either, particularly in pregnant individuals, younger people after hard exercise, or during an illness.

However, abnormally high amounts of protein found in a urine (proteins or incommensurable) is often a sign of kidney disease and can be used to detect the early signs of kidney damage.

Pre-Lab Questions - Answer the following pre-lab questions in complete sentences in your lab journals. 1 . What are the monomers of protein, and what element(s) do they contain that carbohydrates and lipids do not? 2. Explain why you have to test for the presence of macromolecules in known substances first before you test unknown samples?