Lipids Flashcards
What is the molecular makeup of lipids?
Carbon, Hydrogen, and Oxygen (less oxygen in lipids compared to carbohydrates.
What is the structural composition of lipids?
Triglyceride made up of glycerol and 3 fatty acids.
How would we draw a lipid?
What is the main role of lipids?
Energy storage
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What are the 3 biological roles of a lipid?
- Storage of excess energy
- Source of energy
- Insulating material-subcutaneous fat layer reduces heat loss
What do lipids form in marine animals?
Forms blubber in marine mammals-helps with buoyancy.
How do lipids help our organs?
Forms proetctive layers around internal organs- eg. kidneys
What is the function of lipids in cell membranes?
Structural component of cell membranes (phospholipids)
A phospholipid bilayer with _______ and hydrophilic sections.
Hydrophobic
How do lipids help in plants?
Waterproofing-cuticle in plants and anthropods.
How do lipids help with vitamins?
Absorption of fat soluble vitamins (A,D,E.K)
How do lipids help with hormones?
Form sex hormones such as oestrogen, progesteron and testerone.
How do lipids help in animals like camels?
Source of water hen broken down by metabolic activity.
What’s the difference between saturated and unsaturated fats?
In Saturated fat, there are only single bonds between the carbons, the carbon atoms are saturated with hydrogens.
