www.Examville.com Online practice tests, live classes, tutoring, study guides Q&A, premium content and more .
 
<ul><li>lipids are insoluble (hydrophobic) in water </li></ul><ul><li>due to the predominant presence of hydrocarbon group...
<ul><li>molecules which contain both hydrophobic and hydrophilic groups  </li></ul><ul><li>(Greek – amphi – (both), pathos...
<ul><li>Examples: </li></ul><ul><li>  </li></ul><ul><li>Fatty acids  </li></ul><ul><li>Phospholipids </li></ul><ul><li>Sph...
<ul><li>Fatty Acids  – contain a hydrocarbon chain which is hydrophobic and a carboxyl (COO¯) group which is hydrophilic <...
<ul><li>when the amphipathic lipids are mixed in water  </li></ul><ul><li>(aqueous phase) </li></ul><ul><li>the polar grou...
<ul><li>represented as a polar or hydrophilic head with a non-polar or hydrophobic tail </li></ul>
<ul><li>in case of biological membranes, a bilayer of lipids is formed orienting the polar heads to the outer aqueous phas...
 
 
<ul><li>are produced when amphipathic lipids in aqueous medium are subjected to sonifications </li></ul><ul><li>they have ...
<ul><li>are produced when non polar lipids (e.g. triacylglycerols) are mixed with water </li></ul><ul><li>the particles ar...
It’s FREE to join. http://www.examville.com
Upcoming SlideShare
Loading in...5
×

Lipids

851

Published on

Join live classes, download study aids, sell your documents, join or host your own classes online, get tutoring, tutor students, take practices tests and more at Examville.com

Published in: Education, Technology, Business
0 Comments
2 Likes
Statistics
Notes
  • Be the first to comment

No Downloads
Views
Total Views
851
On Slideshare
0
From Embeds
0
Number of Embeds
0
Actions
Shares
0
Downloads
0
Comments
0
Likes
2
Embeds 0
No embeds

No notes for slide

Lipids

  1. 1. www.Examville.com Online practice tests, live classes, tutoring, study guides Q&A, premium content and more .
  2. 3. <ul><li>lipids are insoluble (hydrophobic) in water </li></ul><ul><li>due to the predominant presence of hydrocarbon groups </li></ul><ul><li>however, some possess polar or hydrophilic groups which tend to be soluble in water </li></ul>
  3. 4. <ul><li>molecules which contain both hydrophobic and hydrophilic groups </li></ul><ul><li>(Greek – amphi – (both), pathos – passion) </li></ul>amphipathic
  4. 5. <ul><li>Examples: </li></ul><ul><li>  </li></ul><ul><li>Fatty acids </li></ul><ul><li>Phospholipids </li></ul><ul><li>Sphingolipids </li></ul><ul><li>Bile salts </li></ul><ul><li>Cholesterol (to some extent) </li></ul>
  5. 6. <ul><li>Fatty Acids – contain a hydrocarbon chain which is hydrophobic and a carboxyl (COO¯) group which is hydrophilic </li></ul><ul><li>Phospholipids – have a hydrophilic head </li></ul><ul><li>( phosphate group attached to choline, ethanolamine, inositol etc.) and a long hydrophobic tail </li></ul>
  6. 7. <ul><li>when the amphipathic lipids are mixed in water </li></ul><ul><li>(aqueous phase) </li></ul><ul><li>the polar groups (heads) orient themselves towards aqueous phase while the non polar (tails) orient towards the opposite directions </li></ul><ul><li>  </li></ul><ul><li>  </li></ul><ul><li>leads to the formation of micelles </li></ul><ul><li>  </li></ul><ul><li>  </li></ul><ul><li>micelle formation, facilitated by bile salts is very important for lipid digestion & absorption </li></ul>
  7. 8. <ul><li>represented as a polar or hydrophilic head with a non-polar or hydrophobic tail </li></ul>
  8. 9. <ul><li>in case of biological membranes, a bilayer of lipids is formed orienting the polar heads to the outer aqueous phase on either side and the nonpolar tails into the interior </li></ul><ul><li>the formation of a lipid bilayer is the basis of membrane structure </li></ul>
  9. 12. <ul><li>are produced when amphipathic lipids in aqueous medium are subjected to sonifications </li></ul><ul><li>they have intermittent aqueous phases in the lipid bilayer </li></ul><ul><li>liposomes in combination with tissue specific antigens are used as carriers of drugs to target tissues </li></ul>
  10. 13. <ul><li>are produced when non polar lipids (e.g. triacylglycerols) are mixed with water </li></ul><ul><li>the particles are larger in size and stabilized by emulsifying agents (usually amphipathic lipids, - bile salts & phospholipids ) </li></ul>
  11. 14. It’s FREE to join. http://www.examville.com

×