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DAT Biology (ALL Practice Exam Questions) Questions with 100% correct answers
DAT Biology (ALL Practice Exam Questions) Questions with 100% correct answers
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DAT Biology (ALL Practice ExamQuestions)
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? - -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? -
-Bryophyte
✅✅
In the fetal circulatory system, the ductus venosus allows blood to bypass? -
-Liver
✅✅
What would be the expected outcome if the acrosome of a mature sperm failed to
develop? - -Inability to penetrate zona pellucida
IgA - ✅✅-Found in muccous, salivia, tears, and breast milk. Protects against
pathogens
IgD - ✅✅-Part of the B cell receptor. Activates basophils and mast cells
IgE - ✅✅-Protects against parasitic worms. Responsible for allergic reactions
IgG - ✅✅-Secreted by plasma cells in the blood. Able to cross the placenta into the
fetus
IgM - ✅✅-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? -
-Acrosomal reaction
Describe how the endometrium is maintained after implantation? - ✅✅-the
placenta secretes chorionic gonadotrophin (hCG)
Regulation of the Lac Operon? - ✅✅-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
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