DAT Biology (ALL Practice Exam
Questions) Questions and Answers
An organism is found during a biopsy of lung tissue. It is determined to belong to the genus
Streptococcus and is known to cause tuberculosis. What type of organism is this? - correct answer-
✅Bacteria
A botanist has discovered a new plant and notes that it is predominantly found in its gametophyte form.
Which category does this plant most likely belong to? - correct answer-✅Bryophyte
In the fetal circulatory system, the ductus venosus allows blood to bypass? - correct answer-✅Liver
What would be the expected outcome if the acrosome of a mature sperm failed to develop? - correct
answer-✅Inability to penetrate zona pellucida
IgA - correct answer-✅Found in muccous, salivia, tears, and breast milk. Protects against pathogens
IgD - correct answer-✅Part of the B cell receptor. Activates basophils and mast cells
IgE - correct answer-✅Protects against parasitic worms. Responsible for allergic reactions
IgG - correct answer-✅Secreted by plasma cells in the blood. Able to cross the placenta into the fetus
IgM - correct answer-✅May be attached to the surface of a B cell or secreted into the blood.
Responsible for early stages of immunity.
Which process immediately follows the penetration of the corona radiata by sperm? - correct answer-
✅Acrosomal reaction
Describe how the endometrium is maintained after implantation? - correct answer-✅the placenta
secretes chorionic gonadotrophin (hCG)
Regulation of the Lac Operon? - correct answer-✅When allolactose is present, it binds to and
deactivates a repressor protein
Which of the following statements is true about energy use by the body?
A. Protein is preferentially utilized as an energy source over fat
B. Fats have the greatest yield of ATP
C. Most glycogen stores are in muscle
D. Fat is preferentially utilized as an energy source over carbohydrates
E. Amino acids are converted into glucose for use as an energy source - correct answer-✅B. Fats have
the greatest yield of ATP
Alternative splicing allows for: - correct answer-✅Creation of multiple different proteins from one RNA
strand
A woman using human chorionic gonadotropic during fertility treatment would expect to see stimulated
production of which hormone as a direct result? - correct answer-✅Progesterone
Allopatric Speciation - correct answer-✅Speciation that occurs after a population is divided
geographically
In response to low blood glucose levels, - correct answer-✅ACTH is released by the anterior pituitary
In which group of organisms can simultaneous transcription and translation be observed? - correct
answer-✅Archaebacteria
Which structure is the precursor for the androgens, estrogens, and progesterone molecules necessary
for sexual development? - correct answer-✅Cholesterol
What is an agent that is made and released in response to pathogens such as viruses? - correct answer-
✅Interferon
What is produced in glycolysis? - correct answer-✅Pyruvate
ATP
NADH
ADP
Questions) Questions and Answers
An organism is found during a biopsy of lung tissue. It is determined to belong to the genus
Streptococcus and is known to cause tuberculosis. What type of organism is this? - correct answer-
✅Bacteria
A botanist has discovered a new plant and notes that it is predominantly found in its gametophyte form.
Which category does this plant most likely belong to? - correct answer-✅Bryophyte
In the fetal circulatory system, the ductus venosus allows blood to bypass? - correct answer-✅Liver
What would be the expected outcome if the acrosome of a mature sperm failed to develop? - correct
answer-✅Inability to penetrate zona pellucida
IgA - correct answer-✅Found in muccous, salivia, tears, and breast milk. Protects against pathogens
IgD - correct answer-✅Part of the B cell receptor. Activates basophils and mast cells
IgE - correct answer-✅Protects against parasitic worms. Responsible for allergic reactions
IgG - correct answer-✅Secreted by plasma cells in the blood. Able to cross the placenta into the fetus
IgM - correct answer-✅May be attached to the surface of a B cell or secreted into the blood.
Responsible for early stages of immunity.
Which process immediately follows the penetration of the corona radiata by sperm? - correct answer-
✅Acrosomal reaction
Describe how the endometrium is maintained after implantation? - correct answer-✅the placenta
secretes chorionic gonadotrophin (hCG)
Regulation of the Lac Operon? - correct answer-✅When allolactose is present, it binds to and
deactivates a repressor protein
Which of the following statements is true about energy use by the body?
A. Protein is preferentially utilized as an energy source over fat
B. Fats have the greatest yield of ATP
C. Most glycogen stores are in muscle
D. Fat is preferentially utilized as an energy source over carbohydrates
E. Amino acids are converted into glucose for use as an energy source - correct answer-✅B. Fats have
the greatest yield of ATP
Alternative splicing allows for: - correct answer-✅Creation of multiple different proteins from one RNA
strand
A woman using human chorionic gonadotropic during fertility treatment would expect to see stimulated
production of which hormone as a direct result? - correct answer-✅Progesterone
Allopatric Speciation - correct answer-✅Speciation that occurs after a population is divided
geographically
In response to low blood glucose levels, - correct answer-✅ACTH is released by the anterior pituitary
In which group of organisms can simultaneous transcription and translation be observed? - correct
answer-✅Archaebacteria
Which structure is the precursor for the androgens, estrogens, and progesterone molecules necessary
for sexual development? - correct answer-✅Cholesterol
What is an agent that is made and released in response to pathogens such as viruses? - correct answer-
✅Interferon
What is produced in glycolysis? - correct answer-✅Pyruvate
ATP
NADH
ADP
