chapter 6

Question 1

triglycrides

Answer 1

maindet lipid . one glycerol back bone 3 fattya cids .hhydrophoci

Question 2

how are fatty acids categorized

Answer 2

degree of saturation . length , geomtric

Question 3

degree o fsaturation

Answer 3

saturataed fat n double or triple bonds , monofattyunstaurted acids oen doubel bond , two or mmore polyunstaruated , the more double bonds the mor kink omega 3 on carbon3 , omega 6 on carbon 6 double bon

Question 4

esential fatty acids

Answer 4

body cant synthesis polyunstaurated fattuy acids , so omega 3 and omega 6 before ninth position are essential fatty acids , they moust be cconsumed and cant be syntheised

Question 5

omega 3 and omega 6

Answer 5

they were kown as vitmain f , fat souluble vitamin , alpha linolenic acid can be used to syntheiss exanoic acid and eicospatneaioc acid , omega 3 fatty acids not odun in food intake limitd chia , fish oil , omega 6 linoleic acid can be used to synthesis another essential omega 6 fatty acid , comon in food soy corn , bth oega 6 and 3 can be used to synthesis eicosnaoid , eicosnaoids dervied from omega 3 inflmortry , omega 6 proimflamtory

Question 6

lenght of fatty acid

Answer 6

long fatty acid chains with 14 carbon long i nanimal .medium in oil topical oil , short in bacteri large intesine m frmndt carb fibre ,

Question 7

geometric sturcture

Answer 7

unstaurated fat cna be cis or trans , cis hydrigen same side , trANS OPPOSIYET SIDE DOUBLE BONDS , cis and trans fatty acids are hydirgenatioed , trans fatty are more stable longer shelf life , food maufactpore redue food wated by hydrigentaio , cvd , obesity problems

Question 8

sterols

Answer 8

another group of lipids , sterols in form of ring , hydrocarbon cahin , hydrophoci , function structual i body , cell membrn structure , hormones , both animl and plants

Question 9

animal dervied dsterol

Answer 9

chlosterol , cell membrane one third , outer layer promotes membrane structure , exit eneter cell , vitamin d percursor , reulte calcium estrogen tetstrone , sex hormones , cortisol stresshormone , ;liver and othr tissue syntheis schlostrol m no need in iet not essnetial

Question 10

plant derived sterlo

Answer 10

phytosterlos , difrent structure vegiie oil , oil are refiend through hyrigentaion m, sed , fruits , help hormone s, grown dvelep , limits basorbtion animal erived

Question 11

phospholipids

Answer 11

crtiical component human cell , body ca n make phspholipid itsel so not eessential , one glycerlo 2 fatty acids one phosphat egroup .amiphilic , glycerol backbone hydrophilic , fatty acids are hydrophobic lined inside ,phsoiplipids imersed in water fattya cids face eah other , [[hosphpolipd bilayer , aows awater ocnetni in water and non [p;ar like fat can readily pass , most need transport system , , emulisfy , protei hyrophilci m lipid hydrophoci emulisifier m

Question 12

fat solouble vitamin

Answer 12

vitamin a d e k , transport lipoprotein m dont povide energy