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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.
Teachers: Explore timing and format for the AP Biology Exam. Review sample questions, scoring guidelines, and sample student responses.
As the AP bio exam gets closer, we’ve been getting messages from students asking for help with some of the most difficult concepts/topics in AP Biology. We’ve been answering these but wanted to provide a quick review guide for all students preparing for the AP bio exam next month.
- point
- Total for part (a)
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- Question 1
The Na+ /K + ATPase pumps ions against their concentration gradients. This requires an input of (metabolic) energy.
(b) Identify a dependent variable in the experiment represented in Figure 1. • The number of cells Justify the use of normal human kidney NHK cells as a control in the experiments. Accept one of the following: It allows the scientists to determine the effect of PKD on the cells’ responses to (various concentrations of) ouabain. It allows the scie...
point point Accept one of the following: Increasing concentrations of ouabain result in decreasing ATPase activity (in both types of cells). There is an inverse relationship/negative correlation between the concentration of ouabain and the ATPase activity (in both types of cells).
Note: Student samples are quoted verbatim and may contain spelling and grammatical errors.
Jun 21, 2021 · The AP biology exam, like many other AP exams, is made up of two sections: multiple choice and free-response. The multiple choice section has 60 questions whereas the free-response section only has six.
Question 1. Overview. This question was based on investigations of the effects of caffeine on memory in bees. Caffeine is often produced by plants in their nectar, and researchers studied the effect of caffeine on the probability of bees remembering and, therefore, revisiting a nectar source.
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The AP Biology exam is three hours long, with two sections that take up an hour and a half each. The multiple-choice section has 60 questions , and the free-response section has six questions . The content of the exam spans four major themes, or Big Ideas , that are central to the course.
