lipids

Question 1

What is the structure of triglyceride?

Answer 1

one glycerol and three fatty acid
Fatty acid and glycerol is bonded with ester bond

Question 2

What is saturated and unsaturated lipid?

Answer 2

Saturated - fatty acid with no double bond
Unsaturated - fatty acid with double bond between carbons

Question 3

What is phospholipid?

Answer 3

modified triglyceride and contain the element phosphorus along with carbon, oxygen and hydrogen

Question 4

What is the structure of phospholipid?

Answer 4

HYdrophobic tails and hydrophilic phosphate head

Question 5

How to identify lipids?

Answer 5

emulsion test
put water and ethanol into the sample tube and shake

Question 6

How does double bond in unsaturated fat affect its state in room temperature?

Answer 6

• The presence of double bond causes fatty acid tail to bend and they cannot pack closely to each other
• This makes to liquid at room temperature