Biology
Data Sheet
Carbohydrates
Sample Benedict Test + or -
1.Glucose +
2.Maltose +
3.Sucrose -
4.Lactose +
5.Starch -
Resultant Color in a + Benedict Test Orange/Red/Green
Sample IKI + or
1.Starch + (Blue)
2.Maltose - (Yellow)
3.Sucrose - (Yellow)
4.Glucose - (Yellow)
5.Water - (Yellow)
Lipids
A.
Solubility
1.Water -
2.Acetone ++
3.Alcohol +
4.Chloroform +++
5.Ether +++
Polar Molecule: Molecules are balanced by the number of positive and negative charges, if there are more positives than negatives, the molecule is said to be polar.
Nonpolar Molecule: Molecules are balanced by the number of positive and negative charges, if there are more negatives than positives, the molecule is said to be nonpolar.
POLAR Water
Alcohol
Acetone
Chloroform
NONPOLAR Ether
B. Types of Emulsions
1. A temporary emulsion is formed when 2 "unmixable" liquids are mixed by heavy agitation, but readily settle on standing.
Example Oil dissolved in the soap
2. A permanent emulsion is formed when 2 "unmixable" liquids do not readily settle because of the prescence of emulsifying agents.
Example Salt floating on top of oil
Explain the action of soap.
It dissolves oils and fats.
What is the purpose of Bile salts?
Bile salts enter the small intestine, the moiety separates and the bile salts become soluble and physiologically active like endogenously produce bile salts.
Proteins
+ test is development of violet color
SAMPLE BIURET TEST + or -
1.Water -
2.Albumen + ...
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