lipids

Question 1

what are the main charctistics of lipids

Answer 1

they contain carbon, hydrogen and oxygen
they are insoluble in water
they are soluble to organic solvents such as alcohol

Question 2

what are some roles of lipids

Answer 2

source off energy
waterproofing
insulation
protection

Question 3

triglycerides have three fatty acids and combined with glycerol, what bond and reaction

Answer 3

forms an ester bond with a condensation reaction

Question 4

what is it called when a lipid is single double bond

Answer 4

mono-unsaturated

Question 5

if its more than one double bond what is it called

Answer 5

polyunsaturated

Question 6

what is the structure triglycerides

Answer 6

excellent store of energy
low mass to energy making them good storage molecules
large,non-polar and insoluble so does not affect water potential

Question 7

How are phospholipids similar to lipids ?

Answer 7

One of the fatty acids are replaced with a phosphate molecule.

Question 8

What is a phospholipid made of

Answer 8

A hydrophilic head a hydrophobic tail

Question 9

Structure of phospholipids

Answer 9

Phospholipids are polar.
The phospholipid structure allows them to form glycolipids by combining carbohydrates with the cell surface membrane.
The head helps to hold the surface membrane