Macromolecules lab bio 1 lab essay

Paper type: Food and drink,

Words: 623 | Published: 02.21.20 | Views: 159 | Download now

The macromolecule lab taught us the right way to set up an evaluation to determine exactly what a university positive and negative evaluation for a macromolecule looked like. After we applied our positively tested trials as comparisons to determine whether or not the unknown foodstuffs that were brought in were confident for any from the four macromolecules.

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Through this lab all of us conducted an experiment in order to determine what macromolecules where within foods as well as how to distinguish between an optimistic test and a bad test.

All of us each brought in an unknown foodstuff samples and used our positive check samples to determine whether or not the food we introduced contained the four macromolecules.


If you have a color change with any of the tests samples of the four macromolecules we can determine that is diverse from the original color in the unadulterated water of the four macromolecules we can conclude that reagents successfully demonstrated a positive sample. When tests our foodstuff we can identify that when a color matches our confident reaction or is relatively near to it the fact that food is made up of amounts of the macromolecules that individuals were testing.


Macromolecule selections

Distilled water


Mortar and pedestal

Test pipes

Popular plate

Benedict, Iodine, Sudan reddish colored, and Biuret

Test tube holders

Lies Cheddar and Sour Cream chips

Test conduit rack

Boiling water


We initial took a total of 8-10 test tubes filling one half with ten milligrams of distilled drinking water and the other half with our macromolecule substances. All of us began with all the sugar adding ten drops of benedicts’ solution to the water and our glucose we after that placed all of them in boiling water for 4 minutes and noticed the color improvements and distinctions. Next we all tested the starch option adding eight drops or iodine towards the starch and to the unadulterated water following swirling the tubes we observed area change and differences.

When we tested protein and excess fat we applied the same procedure as the starch apart from we changed the reagents we employed, we applied Biuret intended for the proteins test and we used Sudan red intended for the fat test out.




Color change

C&SC Potato chips

Sugars solution


Benedict reagent

Purple (top), Dark Blue (bottom)

Light Blue

Lighting azure



Iodine reagent


Yellow- Darkish




Biuret reagent



Light Purple


Sudan Red reagent

Dazzling Red

Dark Fruit

Mild Orange

Within our macromolecule lab there were 3rd party variables that people determined to get was the unadulterated water plus the samples of macromolecules that we transformed when we added the reagents. The dependants that did not change were the pipettes, the test pipes, the mortar and basamento, the lab record sheet, plus the test tube rack. The controls were the positive testing that we utilized as side by side comparisons to determine in the event that macromolecules had been present in the meals sample.


In my decisive test my food which happened to be Cheddar and Bad cream poker chips did interact with the reagents. The potato chips tested confident for starch, fat, and protein but mostly included starch because of the potatoes which the chips are created from.

one particular

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