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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.
- About the Exam
Get exam information and free-response questions with sample...
- AP Biology 2019 Free-Response Questions
Questions 3–8 are short free-response questions that require...
- The Exam
Teachers: Explore timing and format for the AP Biology Exam....
- About the Exam
Teachers: Explore timing and format for the AP Biology Exam. Review sample questions, scoring guidelines, and sample student responses.
Free-Response Questions and Scoring Information from Past AP Exams. Explore course-specific free-response questions, scoring information, and student samples from past exams. Your response helps us make any necessary improvements. If you would like to contact Customer Service, please call 866-630-9305 (international: 212-713-8000).
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!
Get exam information and free-response questions with sample answers you can use to practice for the AP Biology Exam.
Questions 3–8 are short free-response questions that require about 6 minutes each to answer. Questions 3–5 are worth 4 points each and questions 6–8 are worth 3 points each. Read each question carefully and completely.
1. Leucine aminopeptidases (LAPs) are found in all living organisms and have been associated with the response of the marine mussel, Mytilus edulis, to changes in salinity. LAPs are enzymes that remove N-terminal amino acids from proteins and release the free amino acids into the cytosol.
