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  1. Study with Quizlet and memorize flashcards containing terms like How can you best define cell theory?, What term is used to describe cells that contain a nucleus?, What element is an essential part of organic compounds and is key to the structure and function of any cell? and more.

  2. Quiz yourself with questions and answers for Biology Basics - practice test, 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.

  3. Quiz yourself with questions and answers for What is Biology? - practice test, 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.

  4. This test has 9 pages with 30 multiple-choice questions and 5 written answer questions. You are responsible for ensuring that your copy of the test is complete. Bring any discrepancies.

    • (4)
    • 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...

  5. Download free-response questions from past AP Biology exams, along with scoring guidelines, sample responses from exam takers, and scoring distributions.

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  7. Try this free practice test to see how prepared you are for a biology exam. Whether you are in high school or college, you are likely to have a biology requirement. Biology tests often cover such subjects as physiology, morphology and reproduction.

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