AP BIO: UNIT 1-5 TEST MCQ
Two different types of bonds are shown in the diagram below. Identify each.
A. 1 covalent; 2 ionic
B. 1 covalent; 2 ionic
C. 1 ionic; 2 hydrogen
D. 1 ionic; 2 covalent - Correct Answers -A
Which of the following best describes a control group?
A. Subjects in an experiment that do not receive the dependent variable
B. Subjects in an experiment that do not receive the independent variable
C. Variables that are kept consistent across subject groups in an experiment - Correct
Answers -B
Scientist Leticia is studying the effect of temperature on mating behavior in insects.
What is the independent variable in her experiment?
A. Number of mating events
B. Temperature
C. Type of insect
D. Time of year - Correct Answers -B
The following dehydration reaction shows the formation of which type of bond?
A. Polypeptide
B. Glyosidic
C. Dehydration
D. Covalent
E. Both A and D
F. Both B and D - Correct Answers -F
The structures of two fatty acids are shown below. Which fatty acid is likely to be
solidified at room temperature?
A. Linoleic acid, because the absence of carbon-carbon double bonds allow the
molecules to pack closely together.
B. Linoleic acid, because the presence of carbon-carbon double bonds prevents the
molecules from packing closely together.
C. Palmitic acid, because the absence of carbon-carbon bonds allows the molecules to
pack closely together.
D. Palmitic acid, because the presence of carbon-carbon double bonds prevents the
molecules from packing closely together - Correct Answers -C
, Which of the following best describes the structures of carbohydrates?
A. The only occur as disaccharides.
B. They occur as monomers, chains of monomers and branched structures.
C. They only occur as long and branched structures.
D. They occur as chains of monomers that hydrogen bond with complementary chains
of monomers. - Correct Answers -B
The following figures show which level of protein organization?
A. Primary
B. Secondary
C. Tertiary
D. Quaternary - Correct Answers -B
Which of the following encodes the "hereditary" information in nucleic acids?
A. Phosphate molecule
B. Five-carbon sugar molecule
C. Nitrogenous base - Correct Answers -C
The figure below shows a nucleic acid fragment. Which of the following characteristics
of the figure best shows that the fragment is RNA and not DNA?
A. The 5' to 3' orientation of the nucleotide.
B. The identity of each nitrogenous base.
C. The charges on the phosphate groups
D. The type of bond linking the nucleotide together. - Correct Answers -B
Which of the following statements best describes how organisms such as rabbits obtain
the carbon necessary to build biological molecules?
A. Rabbits eat plants and use energy to absorbed from the plants to make carbon
atoms from electrons, protons, and neutrons in the air.
B. Rabbits eat plants and break down plant molecules to obtain carbon and other atoms
that they rearrange into new carbon-containing molecules.
C. Rabbits eat plants and use water absorbed from the plants to hydrolyze CO2, which
the rabbits breath in from the air and use as a carbon source.
D. Rabbits eat plants and make carbon-containing molecules by using carbon atoms
that the plants absorbed from the soil and stored in the cells and their leaves. - Correct
Answers -B
Insulin is a protein that is produced by pancreatic cells and secreted into the
bloodstream. Which of the following options correctly lists the order of the structure
through which insulin passes from its production to its exit from the cell?
A. rough ER, Golgi apparatus, transport vesicle, cell membrane
B. rough ER, lysosomes, transport vesicle, cell membrane
C. rough ER, transport vesicle, cell membrane
D. rough ER, Golgi apparatus, smooth ER, cell membrane - Correct Answers -A
Cyanide inhibits (stops) mitochondrial function; as a result, the rate of
Two different types of bonds are shown in the diagram below. Identify each.
A. 1 covalent; 2 ionic
B. 1 covalent; 2 ionic
C. 1 ionic; 2 hydrogen
D. 1 ionic; 2 covalent - Correct Answers -A
Which of the following best describes a control group?
A. Subjects in an experiment that do not receive the dependent variable
B. Subjects in an experiment that do not receive the independent variable
C. Variables that are kept consistent across subject groups in an experiment - Correct
Answers -B
Scientist Leticia is studying the effect of temperature on mating behavior in insects.
What is the independent variable in her experiment?
A. Number of mating events
B. Temperature
C. Type of insect
D. Time of year - Correct Answers -B
The following dehydration reaction shows the formation of which type of bond?
A. Polypeptide
B. Glyosidic
C. Dehydration
D. Covalent
E. Both A and D
F. Both B and D - Correct Answers -F
The structures of two fatty acids are shown below. Which fatty acid is likely to be
solidified at room temperature?
A. Linoleic acid, because the absence of carbon-carbon double bonds allow the
molecules to pack closely together.
B. Linoleic acid, because the presence of carbon-carbon double bonds prevents the
molecules from packing closely together.
C. Palmitic acid, because the absence of carbon-carbon bonds allows the molecules to
pack closely together.
D. Palmitic acid, because the presence of carbon-carbon double bonds prevents the
molecules from packing closely together - Correct Answers -C
, Which of the following best describes the structures of carbohydrates?
A. The only occur as disaccharides.
B. They occur as monomers, chains of monomers and branched structures.
C. They only occur as long and branched structures.
D. They occur as chains of monomers that hydrogen bond with complementary chains
of monomers. - Correct Answers -B
The following figures show which level of protein organization?
A. Primary
B. Secondary
C. Tertiary
D. Quaternary - Correct Answers -B
Which of the following encodes the "hereditary" information in nucleic acids?
A. Phosphate molecule
B. Five-carbon sugar molecule
C. Nitrogenous base - Correct Answers -C
The figure below shows a nucleic acid fragment. Which of the following characteristics
of the figure best shows that the fragment is RNA and not DNA?
A. The 5' to 3' orientation of the nucleotide.
B. The identity of each nitrogenous base.
C. The charges on the phosphate groups
D. The type of bond linking the nucleotide together. - Correct Answers -B
Which of the following statements best describes how organisms such as rabbits obtain
the carbon necessary to build biological molecules?
A. Rabbits eat plants and use energy to absorbed from the plants to make carbon
atoms from electrons, protons, and neutrons in the air.
B. Rabbits eat plants and break down plant molecules to obtain carbon and other atoms
that they rearrange into new carbon-containing molecules.
C. Rabbits eat plants and use water absorbed from the plants to hydrolyze CO2, which
the rabbits breath in from the air and use as a carbon source.
D. Rabbits eat plants and make carbon-containing molecules by using carbon atoms
that the plants absorbed from the soil and stored in the cells and their leaves. - Correct
Answers -B
Insulin is a protein that is produced by pancreatic cells and secreted into the
bloodstream. Which of the following options correctly lists the order of the structure
through which insulin passes from its production to its exit from the cell?
A. rough ER, Golgi apparatus, transport vesicle, cell membrane
B. rough ER, lysosomes, transport vesicle, cell membrane
C. rough ER, transport vesicle, cell membrane
D. rough ER, Golgi apparatus, smooth ER, cell membrane - Correct Answers -A
Cyanide inhibits (stops) mitochondrial function; as a result, the rate of
