biological molecules lipids (KRJ)

Question 1

what atoms do lipids contain

Answer 1

Carbon
Hydrogen
Oxygen

Question 2

what are characteristics of lipids

Answer 2

they are non polar molecules they are insoluble in water and soluble in organic solutions

Question 3

what is a lipids relationship with water

Answer 3

they are hydrophobic, they do not like water

Question 4

what are the building blocks of lipids

Answer 4

fatty acids and glycerol

Question 5

how are lipids different to carbohydrates

Answer 5

they do not form polymers

Question 6

what is a triglycerol

Answer 6

1 glycerol and 3 fatty acids joined by a ester bond

Question 7

what is a saturated fatty acid chain

Answer 7

they consist of hydrocarbon chains with no c=c double bond in them
COOH group at end

Question 8

what is a monounsaturated fatty acid

Answer 8

they consist of a hydrocarbon with one c=c double bond
COOH group at end

Question 9

what is a poly unsaturated fatty acids

Answer 9

a hydrocarbon chain with mkore than on c=c double bond with COOH group at the end

Question 10

what is a phospholipid

Answer 10

made from glycerol, 2 fatty acids and a phosphate group

Question 11

what is the use/ function of phospholipids

Answer 11

used to form a phospholipid bilayer (cell membrane)
energy source and metabolic water source
heat insulation
electrical insulation in Schwann cell
fat as a buoyancy acid

Question 12

what is the function of the head and tail on a phospholipid

Answer 12

head is hydrophilic
tail is hydrophobic

Question 13

how are phospholipids and triglycerides different

Answer 13

phospholipids have 2 fatty acid chains and a phosphate group but triglycerides have 3 fatty acid chains with no phosphate group