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90 minutes
- You will have 90 minutes to answer all 6 questions. Unlike the multiple-choice section, which is scored by a computer, the free-response section is graded by high school and college teachers.
www.princetonreview.com/college-advice/ap-biology-exam
Download free-response questions from past AP Biology exams, along with scoring guidelines, sample responses from exam takers, and scoring distributions.
- 2002 Grade Distributions
Grade distributions for the 2002 AP Biology Exam. AP at a...
- 2007 Scoring Statistics
Scoring statistics for the 2007 AP Biology Exam. AP at a...
- 2002 Grade Distributions
This is a hybrid digital exam. Students complete multiple-choice questions and view free-response questions in the Bluebook testing app. They handwrite their free-response answers in paper exam booklets that are returned for scoring. Download a sample free-response booklet for AP Biology (.pdf).
- Total for part (c)
- Question 2: Interpreting and Evaluating Experimental Results with Graphing
- 1 point
- 4 points
- Question 3: Scientific Investigation
- Process
- Question 6: Analyze Data
(d) A drug is designed to bind to cholera toxin and prevent the toxin from crossing the intestinal cell membrane. Scientists mix the drug with cholera toxin and then add this mixture and GTP to a sample of intestinal cell membranes. Predict the rate of cAMP production in pmol per mg adenylyl cyclase per min if the drug binds to all of the toxin.
During meiosis, double-strand breaks occur in chromatids. The breaks are either repaired by the exchange of genetic material between homologous nonsister chromatids, which is the process known as crossing over (Figure 1A), or they are simply repaired without any crossing over (Figure 1B). Plant breeders developing new varieties of corn are interest...
strains II and III . Strain I is higher/different (in the average number of crossovers) compared with strains II and III . Total for part (b)
(c) Based on the data, describe the relationship between the average number of double- 1 point strand breaks and the average number of crossovers in the strains of corn analyzed in the experiment. • (In general) there is a direct correlation/positive relationship (between the number of double-strand breaks and the number of chromatid crossovers). (...
Fireflies emit light when the enzyme luciferase catalyzes a reaction in which its substrate, D-luciferin, reacts to form oxyluciferin and other products (Figure 1). In order to determine the optimal temperature for this enzyme, scientists added ATP to a solution containing D-luciferin, luciferase, and other substances needed for the reaction. They ...
The following models represent all the interacting species in two different communities with some of the same species and feeding relationships. These models assume that both communities have the same initial biomass. The models can be used to understand the effects of human activities on the communities. Figure 1. Models of two different communiti...
Researchers are studying the use of RNA vaccines to protect individuals against certain diseases. To develop the vaccines, particular cells are first removed from an individual. Then mRNAs coding for specific proteins from a pathogen are introduced into the cells. The altered cells are injected back into the individual, where the cells make the pr...
151 votes, 935 comments. CollegeBoard has released a set of free response questions for AP Biology 2022 FRQ set
Jan 26, 2022 · How long is the 2022 AP Biology exam? The 2022 AP Biology exam will be 3 hours long. What’s the 2022 AP Biology exam date and time? The 2022 AP Biology exam is scheduled for Wednesday, May 11 at 12 PM local time. What will be tested on the 2022 AP Biology exam?
Directions: Questions 1 and 2 are long free-response questions that require about 25 minutes each to answer. Questions 3 through 6 are short free-response questions that require about 10 minutes each to answer. Read each question carefully and completely. Answers must be written out in paragraph form. Outlines, bulleted.
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This AP Biology Review Guide is a BEAST, but it walks through the entire Course & Exam Description (CED) with I can statements, questions, and practice multiple choice/free response for each unit. Plus, new this year - explanations for all of the multiple choice questions.
