Biological Molecules: Lipids: In Depth (DR.A)

Question 1

Describe the PROPERTIES of a TRIGLYCERIDE

Answer 1

-INSOLUBLE- EVEN DISTRIBUTION of CHARGE (NON-POLAR)
-DOESN’T EFFECT OSMOSIS

Question 2

Describe the PROPERTIES of a PHOSPHOLIPID

Answer 2

-HEAD of MOLECULE contains the PHOSPHATE GROUP is ATTRACTED to WATER because of its POLAR PROPERTIES (HYDROPHILLIC)
-TAIL of MOLECULE contains FATTY ACIDS which is NON-POLAR so it DOES NOT mix with WATER

Question 3

State PROPERTIES of SATURATED FATS

Answer 3

-NO C=C BOND
-LONG STRAIGHT CHAINS
-HIGH MELTING POINTS

Question 4

State PROPERTIES of UNSATURATED FATS

Answer 4

-DOUBLE C=C BOND
-LOW MELTING POINTS
-BENT CHAINS