5.3 lipids-fats

Question 1

are fats polymers

Answer 1

no

Question 2

how are fats put together

Answer 2

dehydration synthesis of 2 smaller molecules: glycerol and 3 fatty acids with an ester linkage

Question 3

what’s glycerol

Answer 3

an alcohol with 3 carbons, each with a hydroxyl group

Question 4

what’s a fatty acid

Answer 4

a long carbon skeleton attached to a carboxyl group which is attached to a long hydrocarbon chain

Question 5

why are fats hydrophobic

Answer 5

the nonpolar bonds in the hydrocarbon chains (C-H bond)

Question 6

fats are called

Answer 6

triacylglycerols

Question 7

saturated vs unsaturated fats

Answer 7

saturated = no double bond

unsaturated = double bonds

Question 8

animal fats

Answer 8

saturated fats

lack double bonds -flexible and pack tightly together

Question 9

plant and fish fat

Answer 9

unsaturated

the double bonds keep it from packing together tightly and solidify

Question 10

what does “hydrogenated vegetable oils” mean

Answer 10

unsaturated fats have been synthetically converted to saturated fats by adding hydrogen