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Bio II Honors Review Fall 2009

Multiple Choice
Identify the choice that best completes the statement or answers the question.
 

 1. 
A water molecule (H-O-H) is held together by
a.
a single covalent bond.
b.
hydrogen bonds.
c.
a double covalent bond.
d.
an ionic bond.
e.
a polar covalent bond.
 

 2. 
Glucose dissolves in water because it
a.
ionizes.
b.
is a polysaccharide.
c.
is polar and forms many hydrogen bonds with the water molecules.
d.
has a very reactive primary structure.
e.
none of these
 

 3. 
A molecule with the formula mc003-1.jpgmc003-2.jpgmc003-3.jpg is probably a(n)
a.
protein.
b.
oil.
c.
steroid.
d.
polysaccharide.
e.
wax.
 

 4. 
Which one of the following lists contains only polysaccharides?
a.
sucrose, starch, and cellulose
b.
fructose, cellulose, and glucose
c.
cellulose, starch, and glycogen
d.
nucleotides, glycogen, and cellulose
e.
starch, amino acids, and glycogen
 

 5. 
Amino acids can be distinguished from one another by
a.
the chemical properties of their amino and carboxyl groups.
b.
the type of bond between the R group and the rest of the amino acid molecule.
c.
the number of R groups found on the amino acid molecules.
d.
the chemical properties of their R groups.
e.
All of the choices are correct.
 

 6. 
Peptide bonds
a.
link amino acids.
b.
form between fatty acids.
c.
are used to form amino acids.
d.
are formed by a hydrolysis reaction.
e.
None of the choices are correct.
 

 7. 
The __________ structure of a protein consists of a chain of amino acids assembled in a specific order.
a.
secondary
b.
tertiary
c.
quaternary
d.
primary
e.
None of the choices are correct.
 

 8. 
Which one of the following is not the proper pairing of a polymer and its monomer?
a.
protein and amino acid
b.
triglyceride and steroid
c.
nucleic acid and nucleotide
d.
polysaccharide and monosaccharide
e.
All of the pairs properly reflect a polymer and its corresponding monomer.
 

 9. 
Nucleotides are the building blocks for
a.
proteins.
b.
steroids.
c.
lipids.
d.
ATP, NAD+, and FAD.
e.
carbohydrates.
 

 10. 
Unlike animal cells, plant cells have __________ and __________.  Unlike plant cells, animal cells have __________.
a.
chloroplasts . . . cell walls . . . a nucleus
b.
centrioles . . . cell walls . . . large central vacuoles
c.
centrioles . . . chloroplasts . . . cell walls
d.
chloroplasts . . . cell walls . . . centrioles
e.
chloroplasts . . . cell walls . . . cell membranes
 

 11. 
Which one of the following statements is false? The Golgi apparatus
a.
sorts molecules according to their destination.
b.
works closely with the endoplasmic reticulum.
c.
modifies chemicals received from the endoplasmic reticulum.
d.
decreases in size when a cell increases its protein production.
e.
serves as a molecular warehouse and finishing factory.
 

 12. 
The function of chloroplasts is
a.
intracellular transport of proteins.
b.
cellular respiration.
c.
lipid synthesis.
d.
intracellular digestion.
e.
photosynthesis.
 

 13. 
Mitochondria differ from chloroplasts in that mitochondria
a.
convert solar energy to chemical energy, whereas chloroplasts convert one form of chemical energy to another.
b.
contain three different membrane-bound compartments, whereas chloroplasts contain two.
c.
contain membrane folds called cristae, whereas chloroplasts contain disklike vesicles in stacks called grana.
d.
produce glucose, whereas chloroplasts break glucose down.
e.
are not found in plants, whereas chloroplasts are not found in animals.
 

 14. 
All cells on Earth
a.
can interconvert forms of energy.
b.
are enclosed in a membrane that maintains internal conditions different from the surroundings.
c.
can interconvert chemical materials.
d.
have DNA as the genetic material.
e.
All of the choices are correct.
 

 15. 
Which of the following is NOT true of enzyme behavior?
a.
Enzyme shape may shift during catalysis.
b.
The active site of an enzyme orients its substrate molecules, thereby promoting interaction of their reactive parts.
c.
All enzymes have an active site where substrates are temporarily bound.
d.
Each enzyme can catalyze a wide variety of different reactions.
e.
none of these
 

 16. 
Which affects the rate of diffusion through a semipermeable membrane?
I. steeper concentration gradients
II. higher temperatures
III. membrane pore size
     
a.
I only
b.
II only
c.
I and II
d.
II and III
e.
I, II, and III
 

 17. 
Movement of a molecule against a concentration gradient is
a.
simple diffusion.
b.
facilitated diffusion.
c.
osmosis.
d.
active transport.
e.
passive transport.
 

 18. 
The overall equation for the cellular respiration of glucose is
a.
5 CO2 + 6 H2O --> C6H12O6 + 6O2  + energy.
b.
C6H12O12 + 3O2 --> 6 CO2 + 6 H2O + energy.
c.
C3H12O6 + 6O2  --> 5 CO2 + 6 H2O + energy.
d.
C6H12O6+ 6O2  --> 6 CO2 + 6 H2O + energy.
e.
None of the choices are correct.
 

 19. 
Oxidation is the __________, and reduction is the __________.
a.
loss of electrons . . . gain of electrons
b.
gain of electrons . . . loss of electrons
c.
loss of oxygen . . . gain of oxygen
d.
gain of protons . . . loss of protons
e.
gain of oxygen . . . loss of oxygen
 

 20. 
Which one of the following is the correct sequence of stages in cellular respiration?
a.
the citric acid cycle, oxidative phosphorylation, and glycolysis
b.
oxidative phosphorylation, the citric acid cycle, and glycolysis
c.
oxidative phosphorylation, glycolysis, and the citric acid cycle
d.
glycolysis, oxidative phosphorylation, and the citric acid cycle
e.
glycolysis, the citric acid cycle, and oxidative phosphorylation
 

 21. 
The summary equation for photosynthesis is
a.
the same as the equation for glycolysis written in reverse.
b.
C5H12O6 + 6 O2 + sunlight -->  5 CO2 + 6 H2O.
c.
C6H12O6 + 6 O2 + sunlight -->  6 CO2 + 6 H2O.
d.
6 CO2 + 6 H2O + sunlight ? C6H12O6 + 6 O2.
e.
None of the choices are correct.
 

 22. 
Mitochondria transfer _____ energy from _____ to ATP; chloroplasts transform _____ energy into the chemical energy of ATP.
a.
food . . . light . . . nuclear
b.
light . . . food . . . kinetic
c.
food . . . light . . . chemical
d.
chemical . . . food . . . light
e.
nuclear . . . light . . . food
 

 23. 
If one strand of DNA is CGGTAC, the corresponding strand would be
a.
CGGTAC.
b.
TAACGT.
c.
GCCAUC.
d.
GCCTAG.
e.
GCCATG.
 

 24. 
Which one of the following sequences best describes the flow of information when a gene directs the synthesis of a cellular component?
a.
protein --> RNA -->  DNA
b.
DNA --> amino acid --> RNA --> protein
c.
RNA --> DNA --> RNA --> protein
d.
DNA --> RNA --> protein
e.
DNA --> tRNA --> mRNA --> protein
 

 25. 
We would expect that a 15-nucleotide sequence will direct the production of a polypeptide that consists of
a.
7 amino acids.
b.
3 amino acids.
c.
5 amino acids.
d.
2 amino acids.
e.
15 amino acids.
 



 
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