lecture 6

Question 1

function of triglycerides

Answer 1

form of energy stored molecules for plants and animals

Question 2

monomers of triglycerides

Answer 2

1 glycerol, 3 fatty acid

Question 3

1 glycerol:

Answer 3

a 3 carbon molecule that is the “backbone” of a triglyceride

Question 4

3 fatty acid:

Answer 4

a carboxylic acid group attached to a long hydrocarbon chain

Question 5

what bonds hold triglycerides together?

Answer 5

ester bonds

Question 6

saturated fatty acid:

Answer 6

all C-C bonds-long straight chains. Saturated with hydrogens

Question 7

unsaturated fatty acid:

Answer 7

C=C bonds. leads to kinks in the chain

Question 8

what affects how lipids respond to room temperature?

Answer 8

saturated vs unsaturated

Question 9

saturated FA tend to _________ at room temperature

Answer 9

pack tightly. solids (fats)

Question 10

unsaturated FA tend to ________ at room temperature

Answer 10

not pack well. lipids (oils)

Question 11

monomers of phospholipids

Answer 11

a glycerol, 2 fatty acid chains, and a phosphate group

Question 12

function of phospholipids

Answer 12

the main component of plasma membrane

Question 13

bonds that link phospholipids together

Answer 13

esther bonds

Question 14

amphipathic:

Answer 14

a molecule with both hydrophobic and hydrophilic properties

Question 15

phospholipid bilayer:

Answer 15

structural basis for biological membrane

Question 16

structure of phospholipids

Answer 16

polar hydrophilic head

non polar hydrophobic tail

Question 17

micelle:

Answer 17

when many interact with water, heads pointing out, tails in