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AP Biology Practice Test Questions
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AP Biology Practice Test Questions
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25 Questions

1. Which of the following statements about photosynthesis is incorrect?
2. Which of the following has both a hydrophobic portion and a hydrophilic portion?
3. Similar evolutionary changes occurring in two species that can be related or unrelated.
4. Viral transduction is the process by which viruses carry bacterial DNA from one bacterial cell to another. In what way does this process play a role in bacterial evolution?
5. Which of the following is the least specific taxonomic classification category?
6. In humans, the developing embryo tends to attach to this structure.
7. A researcher conducts a survey of a biome and finds 35 percent more species than she has found in any other biome. Which biome is she most likely to be in?
8. Which of the following tends to be highest on the trophic pyramid?
9. Which of the following is an example of a detritivore?
10. A baby duck runs for cover when a large object is tossed over its head. After this object is repeatedly 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
11. If a couple has had three sons and the woman is pregnant with their fourth child, what is the probability that child 4 will also be male?
12. Among the following choices, which one would most readily move through a selectively permeable membrane?
13. A vine that wraps around the trunk of a tree is displaying the concept known as
14. What biome is known for having the greatest diversity of species?
15. A pH of 10 is how many times more basic than a pH of 7?
16. The presence of which of the following organelles or structures would most convincingly indicate that a cell is a eukaryote and not a prokaryote?
17. Crossover occurs during
18. In a certain population of squirrels that is in Hardy-Weinberg equilibrium, black color is a recessive phenotype present in 9 percent of the squirrels, and 91 percent are gray. What percentage of the population is homozygous dominant for this trait?
19. A new plant was discovered and determined to have an unusually low number of stomata on the undersides of its leaves. For what environment would this plant most likely be best adapted?
20. Two unrelated species evolve in a way that makes them more similar.
21. 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
22. In a large pond that consists of long-finned fish and short-finned fish, a tornado wreaks havoc on the pond, killing 50 percent of the fish population. By chance, most of the fish killed were short-finned varieties, and in the subsequent generation there were fewer fish with short fins. This is an example of
23. Which of the following forms of cell transport requires the input of energy?
24. Which of the following is not known to be involved in the control of cell division?
25. Which of the following is not a form of interspecies interaction?

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