FATS AND OILS FOR LIPIDS

Question 1

are complex heterogeneous compounds found in biological materials.

Answer 1

lipids

Question 2

They are classified on a rather arbitrary basis by their immiscibility in water and solubility in organic solvents such as ether or carbon tetrachloride

Answer 2

lipids

Question 3

Lipids are classified on a rather arbitrary basis by their immiscibility in water and solubility in organic solvents such as

Answer 3

ether or carbon tetrachloride

Question 4

are fatty, waxy, or oily compounds that
are essential to many body functions and serve
as the building blocks for all living cells.

Answer 4

lipids

Question 5

function of lipids

Answer 5

• help regulate hormones
• transmit nerve impulses
• cushion organs
• store energy in the form of body fat

Question 6

Compounds classed as lipids include the

Answer 6

• simple lipids (fats, oils, and waxes),
• compound lipids (lecithin, cephalin)
• derived lipids (steroids).

Question 7

simple lipids

Answer 7

• fats, oils, and waxes

Question 8

compound lipids

Answer 8

lecithin, cephalin

Question 9

derived lipids

Answer 9

steroids

Question 10

are the most abundant lipids found in nature

Answer 10

Fats and oils

Question 11

Fats and oils are the most abundant lipids
found in nature. Both types of compounds are
called

Answer 11

triacylglycerols

Question 12

Fats and oils are the most abundant lipids
found in nature. Both types of compounds are
called triacylglycerols because they are

Answer 12

esters
composed of fatty acids joined to a glycerol, a
trihydroxy alcohol

Question 13

It is applied to distinguish between the desi
ghee and vanaspati ghee.

Answer 13

Baudouin Test

Question 14

contains 5% sesame oil

Answer 14

Vanaspati ghee

Question 15

does not contain sesame oil

Answer 15

pure ghee

Question 16

Fats and oils are treated
with 5ml of concentrated hydrochloric acid and
2% furfural solution in alcohol.

Answer 16

Baudouin Test

Question 17

means any refined edible vegetable
oil or oils subjected to a process of
hydrogenation in any form.

Answer 17

Vanaspati

Question 18

This test is used to identify the adulterant
(vanaspati ghee) in the desi ghee. The food
sample is treated with the mixture, containing 5
ml hydrochloric acid, 2% fufral solution in the
alcohol.

Answer 18

Baudouin Test

Question 19

This test is used to know the degree of
unsaturation in the given sample.

Answer 19

Huble’s Test

Question 20

Huble’s test is used to know the degree of
unsaturation in the given sample. Oils on
reaction with Huble’s reagent fade the _______________
colour of iodine, then, it is unsaturated, and if
the colour persists, then the given fat or oil is
saturated.

Answer 20

violet

Question 21

for cholesterol is based on the production of a blue-green color
upon treatment with fresh acetic acid anhydride
and concentrated sulfuric acid with reaction time
raging from 2-15 minutes depending on
complexity of structure of sample and absence
of rancidity.

Answer 21

Leibermann-Burchard test

Question 22

In this test the given sample to be tested is
rubbed between the folds of filter paper. The
appearance of translucent spot confirms the
presence of fats in the given sample.

Answer 22

Translucent Spot Test

Question 23

In this test, the pink colour potassium permanganate
disappears when an alkaline potassium
permanganate is added to an unsaturated
hydrocarbon. The disappearance of pink colour may
take place with or without the formation of brown
precipitate of manganese oxide.

Answer 23

Alkaline potassium permanganate
test (Baeyer’s test):

Question 24

It is a technique where a solution of known
concentration is used to determine the
concentration of an unknown solution.

Answer 24

Titration

Question 25

the know solution

Answer 25

titrant

Question 26

unkown solution

Answer 26

analyte