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Biochemistry 2 Review
Test Description: Biochemistry 2
Instructions: Answer all questions to get your test result.
1) In the Penny Experiment the soapy penny had weaker ______________ because the ______________ between the water molecules was reduced by the ____________ soap which broke the hydrogen bonds.
A
surface tension; adhesion; nonpolar
B
surface tension; cohesion; nonpolar
C
surface tension; cohesion; polar
D
cohesion; surface tension; polar
2) In the Penny Experiment students tested the cohesion of water molecules placed on a penny which was coated in various solutions. The independent variable in this experiment was
A
the side of the penny.
B
the size of the coin.
C
the solution.
D
the number of water drops.
3) In the Penny Experiment students tested the cohesion of water molecules placed on a penny which was coated in various solutions. The dependent variable in this experiment was
A
the number of water drops.
B
the solution.
C
the size of the coin.
D
the side of the coin.
4) Which of the following makes up cellulose in plants?
A
phospholipids
B
amino acids
C
polysaccharides
D
nucleic acids
5) Which of the following is a function of protein?
A
translating the genetic code
B
composing the lipid bilayer
C
signaling and transporting molecules
D
providing energy to drive metabolic reactions
6) DNA and RNA are made up of nucleotides, which contain
A
ATP, a base and a phosphate group.
B
a sugar, an acid and a phosphate group.
C
a sugar, a nitrogen base and a phosphate group.
D
amino acids.
7) Which of the following are unsaturated fatty acids?
A
butter, hydrogenated vegetable oil
B
lard, bacon grease
C
olive oil, fish oil
D
wax, cholesterol
8) Which category of organic compounds contains the template for genetically acquired traits?
A
proteins
B
carbohydrates
C
lipids
D
nucleic acids
9) Which of the following makes up the bilayer in cell membranes?
A
phospholipids
B
polysaccharides
C
amino acids
D
DNA
10) Unlike saturated fatty acids, unsaturated fatty acids contain what kind of bonds between carbon atoms?
A
hydrogen
B
single
C
double
D
ionic
*select an answer for all questions
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