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ABSTRACT
Standard tests to discover the presence of macromolecules were conducted using
a variety of different indicators and solutions. The results obtained were consistent with
previous research that certain chemicals can be used in order to test for the presence of
various macromolecules. In this lab, several different macromolecules such as proteins, lipids, and carbohydrates were tested, each containing its own properties and individual results. ... The main reactions discovered were: Biuret reagent tested for the macromolecules in protein, Sudan IV tested for macromolecules in vegetable oil (lipids), Benedict solution tested for macromolecules in glucose (carbohydrates), and lastly Iodine tested for macromolecules in starch (carbohydrates). ... Lipids, proteins and carbohydrates are several main
macromolecules responsible for the survival of all organisms (MacDougal, 1998). ... Together various macromolecules are responsible for energy, structural
support, protection/defense, as well as movement, growth and development (Matthai,
1995).
Carbohydrates are the class of macromolecules called sugars. ... Glucose is a monoscacharide derived
from various sugars, as well as the body’s preferred source of fuel (Anon. ...
Proteins are polymers of amino acids and form the third group of organic
macromolecules (Anon. ...
This study was designated to determine the macromolecules present in glucose,
starch, vegetable oil, and protein, as well as which chemicals best identify them
(Ryerson, 2001). ... Normally a control is subjected through all the steps of the
experiment, however it lacks one essential factor (the experiment variable). ... More specifically, Sudan IV will
test for the presence of a lipid (vegetable oil), Benedict solution and Iodine will test for
specific carbohydrates (glucose and starch) and lastly Biuret reagent will test for a
protein. ... Macromolecules are categorized under many different headings; therefore the
results are needed in order for them not only to be informed and clarified, but examined
as well (MacDougal, 1998). ... Next, 10ml of each solution was measured into a graduated cylinder;
10ml of protein into graduated cylinder 1, 10ml of vegetable oil into graduated cylinder
2, 10ml of glucose added to graduated cylinder 3, 10ml of starch added to graduated
cylinder 4 and 10ml of water added to graduated cylinder 5.
Approximate Word count = 1614
Approximate Pages = 6.5
(250 words per page double spaced)
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