Ch. 1-3 Lipids

Question 0

What is formed with each junction of fatty acid

Answer 0

A water molecule

Question 1

What are the general characteristics of lipids

Give some examples

Answer 1

Not soluble in water
Mostly hydrocarbon chains

Fats, steroids, phospholipids

Question 2

What occurs in the formation of a lipid

Answer 2

Condensation synthesis

Question 3

What are the linkages called that link fatty acids

Answer 3

Esther linkage

Question 4

What are fats composed of

Answer 4

Glycerol and fatty acids

Question 5

How many fatty acids does triglycerides have

Answer 5

Three

Question 6

What are the importance of fats

Answer 6

Compact energy source
Cushions vital organs
Provides insulation

Question 7

Describe the structure of saturated fats

Answer 7

No double bonds between carbons

Straight-chain

Question 8

Describe the structure of unsaturated fats

Answer 8

At least one double bond between carbon

Hydrocarbon chain is bent

Question 9

List facts about saturated fats

Answer 9

Usually solid at room temperature
Straight chains allow for tight packing
Most animal fats

Question 10

List facts of unsaturated fats

Answer 10

Usually liquid at room temperature
Bent chains prevent tight packing
Most plant fats

Question 11

Describe the structure of steroids

Answer 11

Consist of four fused carbon rings
Three are six sided
One is five sided
Attached functional groups vary

Question 12

List facts about cholesterol

Answer 12

Precursor of other steroids
Component of animal cell membrane
Contributes to arteriosclerosis

Question 13

What is the head of a phospholipid composed of

Answer 13

Functional and phosphate

Question 14

Describe the head of a phospholipid

Answer 14

Hydrophilic and polar

Question 15

What composes of the tale of a phospholipid

Describe the tail

Answer 15

A glycerol and two fatty acid chains

Hydrophobic

Question 16

The area between where the tails of the phospholipids come together

Answer 16

Phospholipid bilayer it is nonpolar and hydrophobic

Question 17

What model was created to show the relationship with phospholipids and water

Answer 17

Fluid Mosaic model

Question 18

Consists of glycerol and three fatty acid’s

Answer 18

Fat

Question 19

Energy source

Answer 19

Fat

Question 20

Consists of glycerol, two fatty acids, and a phosphate group

Answer 20

Phospholipid

Question 21

Triglycerides

Answer 21

Fat

Question 22

Major component of cell membranes

Answer 22

Phospholipid and steroid

Question 23

Consists of four fused carbon rings

Answer 23

Steroid

Question 24

Cushions and insulates

Answer 24

Fat

Question 25

Why aren’t unsaturated fat solid at room temperature

Answer 25

Because the double bonds cause a kink in the molecule that keeps it from compacting close together to form a solid