18 Questions
What are waxes primarily composed of?
Long chain alkanes and alcohols
Which component is a key part of phospholipids?
Glycerol
What is the function of waxes for plants and animals?
Protection from water loss and abrasive damage
Which group of compounds is made up of simple repeating isoprenoid units?
Rubber, carotenoids, steroids
Which component is attached to phosphoric acid in phospholipids?
Choline
What is the main function of lipids in the cell structure?
Structural component of membranes
What is the main function of waxes in the exoskeleton of insects and cutin in plant organs?
Provide protection
Which type of lipid is composed of glycerol and fatty acids?
Acylglycerols
What is the chemical classification of acylglycerols?
Esters of fatty acids and alcohol
Which group of lipids includes carotenoids and steroids?
Terpenoid lipids
In triglycerides, how many fatty acid molecules are typically bound to one glycerol molecule?
Three
What is the main role of phospholipids in biological systems?
Cell membrane structure
Which type of fatty acids contain up to 6 double bonds?
Polyunsaturated fatty acids
What is the characteristic feature of oleic acid among the listed fatty acids?
Contains a double bond between C9 and C10
At room temperature, fats containing saturated fatty acids are usually:
Solids
What is the specific gravity of fats and oils?
0.8
Which biological molecule is widespread as protective coatings on fruits and leaves?
Waxes
In animals, what are the fatty acids like in terms of structure?
Straight chains
Explore the chemical composition and protective functions of waxes in plants and animals. Learn how waxes safeguard against water loss and abrasive damage, and provide a barrier for various organisms. Discover the diverse mixtures of long chain compounds found in waxes.
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