• Shuffle
    Toggle On
    Toggle Off
  • Alphabetize
    Toggle On
    Toggle Off
  • Front First
    Toggle On
    Toggle Off
  • Both Sides
    Toggle On
    Toggle Off
  • Read
    Toggle On
    Toggle Off
Reading...
Front

Card Range To Study

through

image

Play button

image

Play button

image

Progress

1/8

Click to flip

Use LEFT and RIGHT arrow keys to navigate between flashcards;

Use UP and DOWN arrow keys to flip the card;

H to show hint;

A reads text to speech;

8 Cards in this Set

  • Front
  • Back

Alcohols present in lipid molecules

1. Glycerol (glycerin)


2. Cholesterol


3. Higher alcohols eg Cety-alcohol (usually found in wax)

Glycerol (Structure)

its a simplest trihydric alcohol


It contain 3 hydroxyl group in the molecule

Glycerol (properties)

1. Colurless


2. oily fluid


3. sweetish in taste


4. miscible with water and alchol


5. insoluble in ether

Glycerol (sources)

industrial


1. By product of soap manufacturer


2. from fermentation og glucose by changing conditions in such way asvto decreade Co2 and alcohol formation



Physiological


1. Endogenous: Lipolysis if fat in adipose tissue


2. Exogenous: Dietry 22 % abosorbed directly from portal blood of gut

Glycerol ( Test)

Acroline test:


detect presence


Glycerol when dehydrated with heat and KHSO4 produces "Acryl aldehyde" which has pungent or acrid odour

Glycerol ( uses)

a. Industrial:


Pharmaceutical and cosmetics has glycerol in formula


b. Medicine


Nitroglycerine is vasodilator


In Cerebrovascular diseases glycerol therapy reduce edema


c. Physiological


has definitive nutrition value


Can synthesis glucose and glycogen by gluconeogenesis.


UNSATURATED alcohols

Many of them are pigments


1. Phytol (phytyl alcohol): constitute of chlorophyll


2. Lycophyll: polyunsaturated dihydroxy alcohol occur in tomatoo as purple pigment


3. Carotene: easily split in the body in the centre to give two alchol, vit A


4. Sphingosine and sphingol:


Unsaturated amino alcohol in the body as the constitutent og phospholipids.

Steroid and Sterol

1. found often in the associations wiyh fats


2. Can be separated from fat when fat is Sponified because it occur in unsaponiifiable residue


3. have Phenanthrene ring A,B n C to which cyclopentane ring D is attached called as


Cyclo-pentano-perhydro-phenanthrene nucleus


4. Side chain occur typically atvthe positions 10 and 13 constitutingv 19 and 18 carbon chain


5. side chain at 17 is common



STEROL


If the compound has one or more OH group and no carbonyl or carboxyl group it is called sterol


most important sterol of human is CHOLESTEROL