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Located in thylakoid and is light absorbing pigment; gives plants green color by absorbing violet blue and red light and reflects green light. Stomata. Where CO2 enters and O2 + water vapor leave plants. See more. Unit 1-8 Learn with flashcards, games, and more — for free.
- AP BIOLOGY EXAM 2021 Flashcards
Study with Quizlet and memorize flashcards containing terms...
- AP BIOLOGY EXAM 2021 Flashcards
Quiz yourself with questions and answers for AP Biology 2021-2022 Semester 1 Final Exam (FRQ), so you can be ready for test day. Explore quizzes and practice tests created by teachers and students or create one from your course material.
Study with Quizlet and memorize flashcards containing terms like Water characteristics, Surface Tension, Specific Heat and more.
Download free-response questions from past AP Biology exams, along with scoring guidelines, sample responses from exam takers, and scoring distributions.
- 2: Interpreting and Evaluating Experimental Results with a Graph and Error Bars 9 points
- 4: Conceptual Analysis 4 points
- 6: Analyze Data 4 points
Many types of cancer are treated with a combination of therapies. In lung cancer, some tumors respond well to the drug paclitaxel followed by radiation treatment. Paclitaxel is a chemical that disrupts mitosis. Instead of spindle fibers originating from the two sides (poles) of the cell, paclitaxel-treated cells develop three poles and then divide ...
Solid tumors are clusters of cancer cells and often contain blood vessels. When molecule B binds to the wild-type Brec protein in the plasma membrane of certain solid tumor cancer cells (Figure 1), the cancer cells express the membrane protein A and sometimes stimulate increased growth of blood vessels into the tumors. Cells with a particular mutat...
Increasing the efficiency of photosynthesis is one way to increase crop yield and help to feed human populations. One enzyme vital to the Calvin-Benson cycle of photosynthesis is Rubisco. Rubisco catalyzes the fixation of atmospheric CO2 into organic molecules so that the carbon atoms can be used to produce carbohydrates. Rubisco is composed of two...
The AP Biology Exam has question types and point values that remain stable and consistent from year to year, so you and your students know what to expect on exam day. Section I: Multiple Choice. 60 Questions | 1 hour 30 Minutes | 50% of Exam Score. Individual questions; Sets of questions with 4–5 questions per set; Section II: Free Response
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While you learn about genetics and how it affects evolution, how energy flows through ecosystems and other fascinating topics, you’ll also learn how to think critically, solve problems, and communicate scientific ideas effectively.
