Lipids (OCR A-Level Biology A): Flashcards
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Practise the cards
10 cards from this deck
Are lipids polymers?
Are lipids polymers?
No, not made from repeating monomer units
Define hydrophobic
Define hydrophobic
Water-repelling
What is adipose tissue?
What is adipose tissue?
Specialised tissue where animals store fat
Bond type in triglycerides
Bond type in triglycerides
Ester bond
Number of hydroxyl groups in glycerol
Number of hydroxyl groups in glycerol
Three
Define saturated fatty acid
Define saturated fatty acid
Only single bonds between all carbon atoms in chain
Effect of double bonds in unsaturated fatty acids
Effect of double bonds in unsaturated fatty acids
Creates kink in chain, making fat more fluid
Phospholipid composition
Phospholipid composition
Glycerol + 2 fatty acids + phosphate group
Define amphipathic
Define amphipathic
Has both hydrophobic and hydrophilic regions
Cholesterol as precursor for?
Cholesterol as precursor for?
Steroid hormones (testosterone, oestrogen, progesterone)