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In this section, you will explore the following questions: What is the relevance of photosynthesis to living organisms? What are the main cellular structures involved in photosynthesis? What are the substrates and products of photosynthesis? Connection for AP ® Courses.
Learn AP Biology using videos, articles, and AP-aligned multiple choice question practice. Review the fundamentals of biochemistry, cell biology, genetics, evolution, and ecology, and develop scientific thinking skills as you explore the study of life.
17 Ιουλ 2016 · Besides introducing fixed carbon and energy into ecosystems, photosynthesis also affects the makeup of Earth’s atmosphere. Most photosynthetic organisms generate oxygen gas as a byproduct, and the advent of photosynthesis—over 3 billion years ago, in bacteria resembling modern cyanobacteria—forever changed life on Earth 1 .These bacteria gradually released oxygen into Earth’s ...
-Photosynthetic activity: In bright light, aquatic plants are able to produce more oxygen. -Decomposition activity: As organic material decays, microbial processes consume oxygen. -Mixing and turbulence: Wave action, waterfalls, and rapids all aerate water and increase the oxygen concentration.
Here’s a set of study guides for AP Biology. AP Biology – Unit 1 – Chemistry of Life. AP Biology – Unit 2 – Cell Structure and Function. AP Biology – Unit 3 – Cellular Energetics. AP Biology – Unit 4 – Communication and Cell Cycle. AP Biology – Unit 5 – Heredity. AP Biology – Unit 6 – Gene Expression and Regulation.
Download free-response questions from past AP Biology exams, along with scoring guidelines, sample responses from exam takers, and scoring distributions.
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.
