AP Biology Practice Exam
Which of the following is true of both mitochondria and chloroplasts?
A. They are found in the cells of eukaryotic autotrophs and chloroplasts
B. They include stacks of membranes that absorb light
C. They include compartments where hydrogen ions are concentrated
D. They produce sugars using energy harvested in the cytoplasm
E. They break down sugar to produce ATP
C. They include compartments where hydrogen ions are concentrated
The tertiary structure and function of a polypeptide is principally determined by the
A. length of the polypeptide
B. number of nucleotides present in the polypeptide
C. repeated units of glycerol making up the polypeptide
D. interactions between amino acids present in the polypeptide
E. number of introns within the polypeptide
D. interactions between amino acids present in the polypeptide
In a species that has five different alleles for a gene at a particular locus, how many different alleles
may be present in the somatic cells of one diploid individual?
A. one
B. two
C. three
D. four
E. five
B. Two
If red blood cells cultured in an isotonic medium are placed in distilled water, they will most likely
A. remain unchanged
B. shrivel
C. swell and lyse
D. divide
E. become dormant
C. swell and lyse
The best evidence that the giant panda is more closely related to bears than is the racoonlike lesser
panda involves
A. comparative anatomy
B. comparative embryology
C. DNA sequence comparisons
D. behavioral similarities
E. fossil records
C. DNA sequence comparisons
Metabolism of which of the following molecules results in the greatest net usable energy per gram?
A. a triglyceride
B. a tripeptide
C. an alpha-linked disaccharide
D. a beta-linked disaccharide
E. an anabolic steroid
A. a triglyceride
Which of the following is true of both mitochondria and chloroplasts?
A. They are found in the cells of eukaryotic autotrophs and chloroplasts
B. They include stacks of membranes that absorb light
C. They include compartments where hydrogen ions are concentrated
D. They produce sugars using energy harvested in the cytoplasm
E. They break down sugar to produce ATP
C. They include compartments where hydrogen ions are concentrated
The tertiary structure and function of a polypeptide is principally determined by the
A. length of the polypeptide
B. number of nucleotides present in the polypeptide
C. repeated units of glycerol making up the polypeptide
D. interactions between amino acids present in the polypeptide
E. number of introns within the polypeptide
D. interactions between amino acids present in the polypeptide
In a species that has five different alleles for a gene at a particular locus, how many different alleles
may be present in the somatic cells of one diploid individual?
A. one
B. two
C. three
D. four
E. five
B. Two
If red blood cells cultured in an isotonic medium are placed in distilled water, they will most likely
A. remain unchanged
B. shrivel
C. swell and lyse
D. divide
E. become dormant
C. swell and lyse
The best evidence that the giant panda is more closely related to bears than is the racoonlike lesser
panda involves
A. comparative anatomy
B. comparative embryology
C. DNA sequence comparisons
D. behavioral similarities
E. fossil records
C. DNA sequence comparisons
Metabolism of which of the following molecules results in the greatest net usable energy per gram?
A. a triglyceride
B. a tripeptide
C. an alpha-linked disaccharide
D. a beta-linked disaccharide
E. an anabolic steroid
A. a triglyceride
