Lipids

Question 1

Organic compounds that are more related by their physical properties rather than their chemical
properties

Answer 1

Lipids

Question 2

Lipids are not usually…….

Answer 2

polymers

Question 3

Lipids are a mixture of …….. molecules

Answer 3

hydrophobic

Question 4

Structural (cell membrane phospholipids; has ……..head (…….) and ……. tails (……))

Answer 4

hydrophilic, phosphate, hydrophobic, fatty acids

Question 5

……… group of water insoluble

Answer 5

Heterogeneous

Question 6

Lipids are ……

Answer 6

Hormonal (steroids)

Question 7

Lipids are …… term energy storage (1 gram = …..kcal)

Answer 7

Long , 9

Question 8

Lipids = Protection and ……. (heat, warmth)

Answer 8

insulation

Question 9

Fatty acids = ….. group plus a terminal ……. group

Answer 9

Alkyl, carboxyl

Question 10

Fatty acids Has a nonpolar, insoluble ……. chains and a polar, soluble ……..(pKa=……). So, they are
called…….

Answer 10

hydrocarbon, carboxylic acid, 4.8, amphipathic

Question 11

palmitic acid, contain …….. carbons and a functional …… group

Answer 11

16 , carboxylic

Question 12

THE LONGER THE HYDROCARBON CHAIN THE MORE ……. THE MOLECULE IS.

Answer 12

HYDROPHOBIC

Question 13

Length of the carbons chain: usually even carbon. Length increases = …….. increases

Answer 13

melting point

Question 14

if the chain has at least one double bond between carbon atoms it is said to be ……. If all
carbons bond to the maximum number of hydrogens it is said to be …….. (with hydrogen)

Answer 14

unsaturated, saturated

Question 15

Monosaturated:

Answer 15

1 double bond

Question 16

polysaturated:

Answer 16

2 or more double bonds

Question 17

FA used as fuel molecules in the form ……

Answer 17

triglycerides

Question 18

triglycerides: Stored as primary ……. of glycerol in adipose tissues

Answer 18

esters

Question 19

Glycerol + fatty acids

Answer 19

Triglycerides or triacylglycerol

Question 20

solid at room temp

Answer 20

Fats:

Question 21

liquid at room temp

Answer 21

Oil: