MD 1

Question 1

What is the composition of lipids?

Answer 1

C 77%
H 12%
O 12%

• very little oxygen compared to CHO (carbohydrates)
• Higher carbons and lower proportion of O = makes lipids more non -polar = insoluble in water and soluble in organic solvents

Question 2

what is the percent mol wt for proteins?

Answer 2

C 53%, H 7%, O 23%, N 16%, + S &P >1%

Question 3

What are the properties of lipids?

Answer 3

• a concentrated form of stored energy in the body
• consist of the energy-dense hydrogenated C- chains
  = oxidation of chains in cells provides tremendous
  amounts of chemical energy (ATP) for biosynthesis, work, or heat generation

Question 4

What is ATP

Answer 4

adenosine triphosphate