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Describe the light reactions of photosynthesis and, for both a C3 and a C4 plant, trace the path of a carbon dioxide molecule from the point at which it enters a plant to its incorporation into a glucose molecule.Include leaf anatomy and biochemical pathways in your discussion of each type of plant. Explain what occurs during the Krebs (citric acid) cycle and electron transport by describing the following: 15. For 3 of the following 5 processes involving energy transfer, explain how each functions in the cell and give an example.Include in your discussion the major reactions, the end products, and energy transfers. The rate of photosynthesis may vary with changes that occur in environmental temperature, wavelength of light, and light intensity.
Unit 4 (Photosynthesis and Cellular Respiration) 10.
Describe the similarities and differences between the biochemical pathways of aerobic respiration and photosynthesis in eukaryotic cells.
The free response section consists of two long-form free-response questions, one of which is lab or data-based, and six short-form free-response questions that require a paragraph-length argument/response.
You will have 80 minutes to answer all 8 questions and a 10-minute reading period, giving you a total amount of 90 minutes for this section.
The College Board is very detailed in what they require your AP teacher to cover in his or her AP Biology course.
These are the official Big Four Ideas: books for a comprehensive content review. Colleges are generally looking for a 4 or 5 on the AP Biology exam, but some may grant credit for a 3. Each test is curved so scores vary from year to year.
Check out our AP Biology Guide for what you need to know about the exam: The multiple choice-questions test your grasp of the fundamentals of biology and your ability to apply biological concepts to help solve problems.
The grid-in quantitative questions require the integration of science and mathematical skills.
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