AP BIO EXAM (80 QUESTIONS) WITH
COMPLETE ANSWERS
In animal cells, hydrolytic enzymes are packaged to prevent general destruction of
cellular components. Which of the following organelles functions in this
compartmentalization? - Answer-D. Golgi Bodies
Cells of the pancreas will incorporate radioactively labeled amino acids into proteins.
This "tagging" of newly synthesized proteins enables a researcher to track the location
of these proteins in a cell. In this case, we are tracking an enzyme that is eventually
secreted by pancreatic cells. Which of the following is the most likely pathway for
movement of this protein in the cell? - Answer-C. ER --> Golgi --> Vesicles that fuse
with plasma membrane
Which of the following components is present in a prokaryotic cell? - Answer-D.
ribosomes
Which type of cell would probably provide the best opportunity to study lysosomes? -
Answer-B. phagocytic white blood cell
Cyanide binds with at least one of the molecules involved in the production of ATP.
Following exposure of a cell to cyanide, most of the cyanide could be expected to be
found within the - Answer-B. mitochondria
The following statements about bacterial cell walls are all true except they - Answer-A.
prevent cells from dying in hyper osmotic conditions
Which of the following is a correct statement about the genomes of prokaryotes? -
Answer-E. They often possess an outer membrane containing toxic lipopolysaccharides
Which of the following is a correct statement about the genomes of prokaryotes? -
Answer-D. Instead of a nucleus, prokaryotic cells have a "nucleoid" region
Bacteria are propelled by - Answer-A. flagella
Which of the following is a true statement - Answer-B. viruses can cause diarrhea,
colds, and measles
Which of the following types of molecules are the major structural components of the
cell membrane? - Answer-B. phospholipids and proteins
All of the following are functions of integral membrane proteins except - Answer-B.
enzyme synthesis
, Integral Proteins - Answer-B. are usually transmembrane proteins
A cell lacking oligosaccharides on the external surface of its plasma membrane would
likely be inefficient in - Answer-B. cell-cell recognition
The kinds of molecules that pass through a cell membrane most easily are - Answer-A.
small and hydrophobic
Which of the following would likely move through the lipid bilayer of a plasma membrane
most rapidly - Answer-A. CO2
Which of the following statements is correct about diffusion - Answer-C. It is a passive
process in which molecules move from a region of higher concentration to a region of
lower concentration
Side A: Sucrose(2M) Glucose (1M), Side B: Sucrose (1M, Glucose (2M)
Initially, in terms of molarity, the solution in side A with respect to that in side B is -
Answer-C. isotonic
Side A: Sucrose(2M) Glucose (1M), Side B: Sucrose (1M, Glucose (2M)
After the system reaches equilibrium, what changes are observed? - Answer-B. The
water level is higher in side A then in side B
A patient has a serious accident and lost a lot of blood. In an attempt to replenish body
fluids, a large amount of distilled water was transferred directly into one of his veins.
What will be the most probable result of this transfusion? - Answer-A. It will have
serious, perhaps fatal, consequences because the red blood cells will be hypertonic
relative to the body fluids and the cells will burst.
What would be the pH of a solution with a hydrogen ion concentration (H+) of 10^-8 M?
- Answer-A. pH 8
Which of the following solutions has the greatest concentration of hydrogen ions (H+)? -
Answer-E. Gastric Juice at pH 2
Which of the following statements is true about buffer solutions? They - Answer-B. tend
to maintain a relatively constant pH.
One of the buffers that contribute to pH stability in human blood is carbonic acid
(H2CO3). Carbon acid is a weak acid that dissociates into a bicarbonate ion (HCO3-)
and a hydrogen ion (H+).
Thus, H2CO3 --> HCO3- + H+
If the pH of the blood drops, one would expect - Answer-C. the HCO3- to act as a base
and remove excess H+ with the formation of H2CO3.
Which of the following is an example of a hydrophobic material? - Answer-A. wax
COMPLETE ANSWERS
In animal cells, hydrolytic enzymes are packaged to prevent general destruction of
cellular components. Which of the following organelles functions in this
compartmentalization? - Answer-D. Golgi Bodies
Cells of the pancreas will incorporate radioactively labeled amino acids into proteins.
This "tagging" of newly synthesized proteins enables a researcher to track the location
of these proteins in a cell. In this case, we are tracking an enzyme that is eventually
secreted by pancreatic cells. Which of the following is the most likely pathway for
movement of this protein in the cell? - Answer-C. ER --> Golgi --> Vesicles that fuse
with plasma membrane
Which of the following components is present in a prokaryotic cell? - Answer-D.
ribosomes
Which type of cell would probably provide the best opportunity to study lysosomes? -
Answer-B. phagocytic white blood cell
Cyanide binds with at least one of the molecules involved in the production of ATP.
Following exposure of a cell to cyanide, most of the cyanide could be expected to be
found within the - Answer-B. mitochondria
The following statements about bacterial cell walls are all true except they - Answer-A.
prevent cells from dying in hyper osmotic conditions
Which of the following is a correct statement about the genomes of prokaryotes? -
Answer-E. They often possess an outer membrane containing toxic lipopolysaccharides
Which of the following is a correct statement about the genomes of prokaryotes? -
Answer-D. Instead of a nucleus, prokaryotic cells have a "nucleoid" region
Bacteria are propelled by - Answer-A. flagella
Which of the following is a true statement - Answer-B. viruses can cause diarrhea,
colds, and measles
Which of the following types of molecules are the major structural components of the
cell membrane? - Answer-B. phospholipids and proteins
All of the following are functions of integral membrane proteins except - Answer-B.
enzyme synthesis
, Integral Proteins - Answer-B. are usually transmembrane proteins
A cell lacking oligosaccharides on the external surface of its plasma membrane would
likely be inefficient in - Answer-B. cell-cell recognition
The kinds of molecules that pass through a cell membrane most easily are - Answer-A.
small and hydrophobic
Which of the following would likely move through the lipid bilayer of a plasma membrane
most rapidly - Answer-A. CO2
Which of the following statements is correct about diffusion - Answer-C. It is a passive
process in which molecules move from a region of higher concentration to a region of
lower concentration
Side A: Sucrose(2M) Glucose (1M), Side B: Sucrose (1M, Glucose (2M)
Initially, in terms of molarity, the solution in side A with respect to that in side B is -
Answer-C. isotonic
Side A: Sucrose(2M) Glucose (1M), Side B: Sucrose (1M, Glucose (2M)
After the system reaches equilibrium, what changes are observed? - Answer-B. The
water level is higher in side A then in side B
A patient has a serious accident and lost a lot of blood. In an attempt to replenish body
fluids, a large amount of distilled water was transferred directly into one of his veins.
What will be the most probable result of this transfusion? - Answer-A. It will have
serious, perhaps fatal, consequences because the red blood cells will be hypertonic
relative to the body fluids and the cells will burst.
What would be the pH of a solution with a hydrogen ion concentration (H+) of 10^-8 M?
- Answer-A. pH 8
Which of the following solutions has the greatest concentration of hydrogen ions (H+)? -
Answer-E. Gastric Juice at pH 2
Which of the following statements is true about buffer solutions? They - Answer-B. tend
to maintain a relatively constant pH.
One of the buffers that contribute to pH stability in human blood is carbonic acid
(H2CO3). Carbon acid is a weak acid that dissociates into a bicarbonate ion (HCO3-)
and a hydrogen ion (H+).
Thus, H2CO3 --> HCO3- + H+
If the pH of the blood drops, one would expect - Answer-C. the HCO3- to act as a base
and remove excess H+ with the formation of H2CO3.
Which of the following is an example of a hydrophobic material? - Answer-A. wax
