5 Steps to a 5 AP Biology, 2014-2015 Edition

AP Biology Practice Exam 2 ❮ 289

AP Biology Practice Exam 2: Section I

PART A: MULTIPLE-CHOICE QUESTIONS

Time–1 hour and 30 minutes (for Parts A and B)

For the multiple-choice questions to follow, select the best answer

and fill in the appropriate letter on the answer sheet.

1. A baby duck runs for cover when a large object
   is tossed over its head. After this object is repeat-
   edly passed overhead, the duck learns there is no
   danger and stops running for cover when the
   same object appears again. This is an example of
   A. imprinting.
   B. fixed-action pattern.
   C. agonistic behavior.
   D. habituation.


2. In a population of giraffes, an environmental
   change occurs that favors individuals that are
   tallest. As a result, more of the taller individuals are
   able to obtain nutrients and survive to pass along
   their genetic information. This is an example of
   A. directional selection.
   B. stabilizing selection.
   C. sexual selection.
   D. disruptive selection.


3. The relatives of a group of pelicans from the same
   species that separated from each other because of
   an unsuccessful migration are reunited 150 years
   later and find that they are unable to produce
   offspring. This is an example of
   A. allopatric speciation.
   B. sympatric speciation.
   C. genetic drift.
   D. gene flow.
   E. natural selection.


4. A cell is placed into a hypertonic environment
   and its cytoplasm shrivels up. This demonstrates
   the principle of
   A. diffusion.
   B. active transport.
   C. facilitated diffusion.
   D. plasmolysis.
   5. Which of the following is a biotic factor that
   could affect the growth rate of a population?
   A. Volcanic eruption
   B. Glacier melting
   C. Destruction of the ozone layer
   D. Sudden reduction in the animal food resource
   6. Which of the following is not a way to form
   recombinant DNA?
   A. Translation
   B. Conjugation
   C. Specialized transduction
   D. Transformation
   7. Chemiosmosis occurs in
   I. Mitochondria
   II. Nuclei
   III. Chloroplasts
   A. I only
   B. II only
   C. III only
   D. I and III
   8. Which of the following theories is based on the
   notion that mitochondria and chloroplasts
   evolved from prokaryotic cells?
   A. Fluid mosaic model
   B. Endosymbiotic model
   C. Taxonomic model
   D. Respiration feedback model
   9. Which of the following is not known to be
   involved in the control of cell division?
   A. Cyclins
   B. Protein kinases
   C. Checkpoints
   D. Fibroblast cells

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