Experiment 15 - Properties of Lipids

Question 1

Lipids are insoluble in?

Answer 1

Polar solvents (ex. water)

Question 2

Lipids are soluble in?

Answer 2

Nonpolar solvents (ex. ether, chloroform, hexane)

Question 3

Types of polar amphipathic lipids / fatty acids

Answer 3

Phosphoglycerides, sphingolipids, cholesterol

Question 4

Fats in adipose tissues and a major storage form of energy.

Answer 4

Triglycerides

Question 5

What are fat soluble vitamins that are also a part of dietary components.

Answer 5

A, D, E, K

Question 6

Different kinds of lipid molecules

Answer 6

Waxes, cholesterol esters, sphingolipids, triglycerides

Question 7

Amphipathic lipids are also known as?

Answer 7

Fatty acids

Question 8

Saturated fatty acids

Answer 8

Abundant in fats

Question 9

Unsaturated fatty acids

Answer 9

Predominant in plant oils

Question 10

Fats and Oils

Answer 10

Triglycerides of glycerols and fatty acids

Question 11

Apparatuses used

Answer 11

TBG1PDF
Test tubes
Beaker
Graduated cylinder
1ml pipets
Droppers
Filter papers

Question 12

Oils [Materials]

Answer 12

Cooking oil
Palm oil
Corn oil
Olive oil

Question 13

Solutions [Materials]

Answer 13

Bile solution
Lecithin solution
Detergent solution
Albumin solution

Question 14

Bromine in (?) [Materials]

Answer 14

Bromine in Methylene chloride
Bromine in Chloroform

Question 15

Numbers [Materials]

Answer 15

1M NaOH
10% NaOH
3M acetic acid

Question 16

Others

Answer 16

Hexane
Ethyl alcohol
Chicken bile

Question 17

6 qualitative tests for lipids

Answer 17

Test for solubility
Translucent spot test
Sudan IV test
Test for unsaturation
Emulsification of fats
Surface tension