Unit 1 test review Part 2

Question 1

What is the function of lipids

Answer 1

1) stuructural components of membranes (determine what gets in and out of the cell)
2) High energy molecule( long term storage)

Question 2

Why do fats have 2x more energy than carbs

Answer 2

Becuase greater number of C-H Bonds

Question 3

Are lipds insoluble or soluble/ non polar or polar

Answer 3

-Insoluble important that they don’t diffuse away
-non polar and hydrophobic

Question 4

What is glycerol made up of

Answer 4

3 carbons and 3 alcohols

Question 5

What is fatty acid

Answer 5

hydrocarbon tail thats 3-5 carbons long
end with a carboxyl group

Question 6

Saturated fats

Answer 6

have maximum number of h thus more energy becuase of c-h bonds
found in animal fats and solid at room tempreture

Question 7

Unsaturated fat

Answer 7

double bond liquid at room tempreture because they bend at double bonds. therfore low melting and boiling point

Question 8

Give example of 1 fatty acid

Answer 8

COOH-(CH2)16-Ch3

Question 9

Glycerol + 2fatty acids make

Answer 9

diglyceride and 2 water

Question 10

Glycerol + 3fatty acids make

Answer 10

triglyceride + 3 water

Question 11

Glycerol + 2fatty acids and 1 phosphate make

Answer 11

Phosophodiglyceride and 3 water

Question 12

Where are phospholipids seen in?

Answer 12

cell membranes

Question 13

What does the reaction with inorganic phosphate create

Answer 13

phosphoglycerides or phospholipid