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Download free-response questions from past AP Biology exams, along with scoring guidelines, sample responses from exam takers, and scoring distributions.
Figure 1. Model of two-step enzymatic plant pathway for synthesis of IAA from tryptophan. Auxins are plant hormones that coordinate several aspects of root growth and development. Indole-3-acetic acid (IAA) is an auxin that is usually synthesized from the amino acid tryptophan (Figure 1).
AP Biology Practice Test. Hundreds of multiple choice questions, all organized by topic. These are challenging online quizzes with answers and explanations. One of the best free resources available!
Biology Practice Exam. From the 2013 Administration. This is a modified version of the 2013 AP Biology Exam. This practice exam is provided by the College Board for AP Exam preparation. Exams may not be posted on school or personal websites, nor electronically redistributed for any reason.
16 Φεβ 2021 · If you are looking for past AP Biology free-response questions (FRQs) that are organized by topic, then you have come to the right place. In this post, we have linked every freely available past FRQ there is from College Board and organized it into the following major topics of AP Biology.
BIOLOGY SECTION I. 69 Questions Time—90 minutes. Directions: Each of the questions or incomplete statements below is followed by four suggested answers or completions. Select the one that is best in each case and then fill in the corresponding oval on the answer sheet.
Sample: 3B Score: 3. The response earned 1 point in part (a) for drawing the appropriate symbols in the negative control aquarium. The response earned 1 point in part (a) for drawing the appropriate symbols in the experimental aquarium.
