Lipids

Question 1

Which reagent is used in the emulsion test for lipids?

Answer 1

Ethanol

Question 2

What elements are found in lipids?

Answer 2

carbon, hydrogen, oxygen

Question 3

What type of bond forms between glycerol and a fatty acid in a triglyceride?

Answer 3

ester bond

Question 4

A saturated fatty acid is one that

Answer 4

Has no carbon-carbon double bonds

Question 5

A lipid with a carbon carbon double bond will

Answer 5

Form a kink or bend

Question 6

Which of the following best describes the role of lipids in the body?

Answer 6

Energy storage, insulation, and membrane formation

Question 7

How many water molecules are released during the formation of one triglyceride molecule?

Answer 7

3

Question 8

Which of the following best describes the structure of a triglyceride?

Answer 8

Three fatty acids and one glycerol molecule joined by ester bonds

Question 9

Which statement correctly describes unsaturated fatty acids?

Answer 9

They have one or more double bonds between carbon atoms

Question 10

What is the role of phospholipids in cell membranes?

Answer 10

They form a bilayer with hydrophilic heads facing outwards and hydrophobic tails inwards