EBIO 1210 MIDTERM 1: LIPIDS; QUESTIONS WITH CORRECT
ANSWERS
What are four features of a polyunsaturated fatty acid? -- Answer ✔✔ 1. It is fluid at
room temperature.
2. It has two or more kinks.
3. It has two or more C=C bonds.
4. It has a lower energy content than a saturated fatty acid with the same number of C
atoms.
What is the relationship between dehydration synthesis and hydrolysis? -- Answer ✔✔
Dehydration synthesis creates polymers and hydrolysis creates monomers.
What are all life's large molecules synthesized by and broken down by? -- Answer ✔✔
Removal of a water molecule; addition of a water molecule.
How many molecules of water are needed to completely break down a polymer
consisting of five monomers? -- Answer ✔✔ Four
The polarity of water molecules results in _______ bonds between water molecules,
and make a water molecule stick to any molecules with _______ bonds or _________
regions. -- Answer ✔✔ Hydrogen; polar covalent; charged.
In a polar covalent bond, how are the electrons configured? -- Answer ✔✔ Tightly held
by one of the atoms forming the bond?
What is one example of a non-polar covalent bond? -- Answer ✔✔ C-H bonds
Predict with which partner an oxygen atom (O) will most likely form a non-polar
covalent bond. -- Answer ✔✔ With another oxygen (O) atom.
