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21 notecards = 6 pages (4 cards per page)

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Biochemistry-Lipids

front 1

What is the origin of the word "Lipid"

back 1

comes from the Greek word “lipos” meaning “fat”

front 2

What is the importance of Lipids for the human body

back 2

  • for the cell membrane
  • for fat-soluble vitamin
  • to make steroid hormones

front 3

can you hydrolyze cholesterol or steroids if no then why not

back 3

no, because they don't have any fatty acids attached to them

front 4

What is the simplest form of lipid

back 4

fatty acids

front 5

do Naturally occurring fatty acids have an even or odd number of carbon atoms

back 5

even

front 6

name examples of fatty acids

back 6

palmitic (C16), oleic (C18), linoleic (C18),lauric (C12) and stearic (C18) acids

front 7

Where can u find Lauric acid

back 7

in coconut oil

front 8

What is the molecular formula for saturated fatty acids

back 8

[CnH2n+1COOH].

front 9

What is the molecular formula for unsaturated fatty acids

back 9

[CnH2n-1COOH].

front 10

What is the molecular formula for polyunsaturated fatty acids

back 10

CnH2n - 2xO2 (idk if [CnH2n-2xCOOH]. is possible or not)

front 11

is the cis or trans unsaturated fatty acids more commonly occurring naturally

back 11

The cis structure is found in almost all naturally occurring unsaturated fatty acids

front 12

What type of fatty acids does the Human body find difficult to synthesis, give examples

back 12

Polyunsaturated fatty acids that are essential fatty acids, like linoleic acid and arachidonic

front 13

What is the use of Waxes

back 13

  • cover leaves to prevent loss of water and damage from pests
  • on the skin, fur, and feathers of animals and birds provide a waterproof coating
  • palm trees wax(carnauba wax) are used to give a protective coating to furniture, cars, and floors
  • Jojoba wax is used in making candles and cosmetics such as lipstick
  • Lanolin, a mixture of waxes obtained from wool, is used in hand and facial lotions to aid retention of water, which softens the skin

front 14

What is tristearin

back 14

a triglyceride composed of three stearic acid molecules connected to a glycerol molecule through ester linkages

front 15

are Most fats and oils simple or mixed triacylglycerols

back 15

mixed

front 16

at what pH does the Amino Alcohols ionize

back 16

7.4

front 17

Where are Lecithins and cephalins abundant

back 17

brain and nerve tissues as well as in egg yolks, wheat germ, and yeast

front 18

What is The Molecular formula of cholesterol

back 18

C27H45OH

front 19

is cholesterol solid or liquid

back 19

Solid

front 20

What else do we name Cholesterol

back 20

cyclo-pentano-perhydro-phenanthrene nucleus

front 21

What is zwitterionic nature

back 21

a functional group molecule in which at least one has a positive electrical charge and one a negative electrical charge, basically a hybrid