Chemistry of life: lipids

Question 1

What role do lipids play in the human body?

Answer 1

Lipids are used to save energy and matter

Question 2

What is considered a lipid-like wax?

Answer 2

Fats and oils are considered lipid-like waxes

Question 3

What purpose do lipid-like waxes serve?

Answer 3

Lipid-like waxes are responsible for water-proofing specific structures

Question 4

Are fats and oils triglycerides, and how do they form?

Answer 4

Yes, fats and oils are triglycerides and are formed by condensation of a glycerol molecule, and 3 fatty acids

Question 5

What is the difference between saturated and unsaturated fatty acids?

Answer 5

Saturated fatty acids only have 1 single covalent bond between their carbon atoms.

Unsaturated fatty acids have some covalent bonds between their carbon atoms

Question 6

What are the differences between saturated fats and unsaturated saturated fats in regards to liquid?

Answer 6

Saturated fats are straight, and become solid at room temperature

Unsaturated fats are looser and stay in liquid form

Question 7

How are Triglycerides created?

Answer 7

Triglycerides are created by condensation of glycerol, two fatty acid chains, and a head that contains phosphate

Question 8

Is the tail or head hydrophilic?

Answer 8

The head is hydrophilic and the tail is hydrophobic

Question 9

What are sterols?

Answer 9

Sterols and lipids that form four attached rings

Question 10

What are three examples of sterols?

Answer 10

Chlorlestral, some vitamins, and hormones.