Bio-Chemistry
Quiz Time :)
Time to show us what you have learned.....or not learned...... :)
For #1-5, match the Key Term on the left with the definition on the right. NOTE: There are more definitions than necessary.
1)_________Lipid
2)_________Secondary Structure
3)_________pH
4)_________Enantiomer Isomer
5)_________Activation Energy (Ea)
a) A measure of Hydrogen ion concentration, equal to the -log[H+} and ranging in value from 0-14.
b) One of two compounds that are mirror images of each other and that differ in the shape due to the presence of an asymmetric carbon.
c) Any group of large biological molecules, including fats, and steroids, that mix poorly, if at all, with H2O.
d) The overall, 3-D shape of a protein that results from amino acid side chains (which includes: hydrophobic interactions, ionic bonds, H-bonds, and disulfide bridges).
e) the repeated folding/coiling patterns in a protein chain that contributes to overall shape. This results from H-bonding. It folds/coils into an alpha helix or beta pleated sheet.
f) A lipid that has 2 fatty acids and 1 glycerol and phosphate group. The chain acts as non polar, hydrophilic tails, and the rest act as hydrophilic, polar heads. They function as membranes.
g) The initial investment of energy for starting a reaction-the energy required to control the reaction molecules so the bonds can break free. Often supplied in thermal form (bent) so molecules collide more forcefully and often.
6) Name the type of reaction below: ______________________

7) The two moelcules shown to the right are best described as:
a) Nucleic Acid
b) Cis-trans (Geometric Isomers)
c) Carbohydrates
d) Water

8) The primary chemical composition of Carbohydrates is:
a) Carbon, Hydrogen, Oxygen
b) Primarily Hydrogen and Carbon
c) Carbon, Hydrogen, Oxygen, Nitrogen
d) Carbon, Hydrogen, Oxygen, Nitrogen, Phosphorous
9) What functional group is -NH2?
a) Carboxyl
b) Methyl
c) Amino
d) Hydroxyl
10) Which macromolecule doesn't have a polymer form?
a) Carbohydrates
b) Lipids
c) Nucleic Acid
d) Proteins
11) BONUS! Who created this website? :)
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