18 Questions
What is the main reason unsaturated fats are liquid at room temperature?
They have double bonds
Which type of fats are more likely to be solid at room temperature?
Saturated fats
What is the impact of saturation on the melting point of fats?
Higher saturation leads to a higher melting point
Which type of fats are typically derived from animals?
Saturated fats
If a fat contains 80% saturated fatty acids and 20% unsaturated fatty acids, what would be its consistency at room temperature?
Solid
Which type of fats are more likely to be found in plants and fish?
Unsaturated fats
What is the unifying feature of lipids?
Hydrophobicity due to nonpolar hydrocarbons
In a fat, how are the three fatty acids joined to glycerol?
By ester linkages
Why do fats separate from water?
Because water molecules exclude non-polar fats
What is the structure of glycerol?
Three-carbon alcohol with hydroxyls on each carbon
Which part of a fatty acid is responsible for its acidic properties?
Carboxyl group
What determines whether a fatty acid is saturated or unsaturated?
Presence of double bonds in the hydrocarbon chain
What is the major function of fat mentioned in the text?
Store energy
What is the process of converting unsaturated fats to saturated fats by adding hydrogen called?
Hydrogenation
Which type of fats may contribute more than saturated fats to cardiovascular disease, as per the text?
Trans fats
What is the function of adipose tissue mentioned in the text?
Cushion vital organs and insulate the body
Which type of fatty acids must be supplied through the diet as they are not synthesized in the human body?
Essential fatty acids
What is the structure of a phospholipid as described in the text?
Two hydrophobic tails and a hydrophilic head group
Test your knowledge on the structure and function of large biological molecules, with a focus on lipids as a diverse group of hydrophobic molecules. Explore concepts such as the lack of polymer formation, hydrophobic nature, and the biological significance of lipids.
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