Fats and oils are composed of - Fatty acids and glycerol
Fatty acids can naturally be saturated or unsaturated. A saturated fatty acid has - .
All single covalent bonds
Triglycerides, a type of fat, are composed of what two subunits? - Fatty acids and glycerol
What would you have to do to make a fat from the fatty acid shown above? - Attach it to a glycerol along with two other fatty acids.
If one or more of the fatty acids in a triglyceride include omega-3 fatty acids, what can you predict about this substance at room temperature? - It is a liquid oil
What kinds of molecules are the major fuel for the salmon's long trip? - Triglycerides (fats / oils)
Based on your knowledge of the structure of triglycerides, what products would you expect to result from the complete hydrolysis of a fat molecule? More than one is correct. - Fatty acids and glycerol
The blubber layer helps insulate mammals and birds that live in cold water; fat does not conduct heat very quickly. Applying what you know about lipids, what is the main advantage of covering feathers or fur in oil? - Oil sheds water and keeps underlying layers of fur or downy feathers dry.
Another type of lipid that composes cells are called phospholipids. Phospholipids differ from other lipids because they - Contains a hydrophobic and hydrophilic end
Highly simplified diagram of a membrane's structure is made up of - Phospholipids
Which part of the molecules is hydrophilic? - The heads
Ions of salt (sodium, NA+, and chloride, Cl−) are highly hydrophilic. Will they easily pass through the layer to enter or leave a cell? - No.
What are molecules? - Molecules are made of atoms
Below is an image of the smallest amino acid: Glycine. What does each line in the picture of the amino acid represent? - A shared pair of electrons in a covalent bond.
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