Previous ap biology exam essays


AP Biology

The revised AP Biology course is focused on enduring, conceptual understandings and content that supports these understandings. The emphasis of the course is on learning essential concepts and reasoning skills.


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It is the equivalent of a two-semester college introductory class. Our free AP Biology practice test is a great place to start your exam prep.

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You will also need to master seven scientific practices. To do this, you should be familiar with the provided lab manual. The College Board specifies that in a lab exploration, you should be able to:. For a more specific idea of where to focus your studying, you may consider using an updated commercial study guide.

AP Exam Prep Strategies

Because the Biology AP course was so recently redesigned, there are not yet many choices of updated commercial study guides. The previous version of this study guide received high marks from reviewers for its succinct summary of content and its two full-length practice exams.


  1. AP Biology: How to Approach Free Response Questions - Kaplan Test Prep.
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  4. Official AP Biology Practice Exams;
  5. Every AP Biology Practice Test Available: Free and Official.
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There are also a number of free study resources available online. Many AP teachers have posted complete study guides, review sheets, and test questions. Be careful when accessing these, though, as many will be based on previous versions of the exam. Remember, anything produced before fall will focus more on specific content areas with less emphasis on the big ideas featured on the current exam.

Another new, fun way to study is to use one of the recently developed apps for AP exams. Make sure you read reviews before choosing one — their quality varies widely. Once you have your theory down, test it out by practicing multiple-choice and grid-in questions. You can find these in most study guides or through online searches. You could also try taking the multiple-choice section of another practice exam. The College Board Course Description includes many practice multiple choice questions along with explanations of their answers.

As you go through these, try to keep track of which areas are still tripping you up, and go back over this theory again. Focus on understanding what each question is asking and keep a running list of any vocabulary that is still unfamiliar. The free response section of the Biology AP exam gives you the opportunity to demonstrate your understanding of key concepts in the context of authentic problems and research, make claims and defend them with sound evidence, and create insightful connections across big ideas and enduring understandings. Pay close attention to the task verbs used in the free-response prompts.

Know precisely what each one of these words is asking you to do. Underline each section of the question, circle the task verb, and check them off as you write. Many students lose points by simply forgetting to include one part of a multipart question. As you complete the free response questions, make sure to keep an eye on the time. Though you will be reminded of time remaining by the exam proctor, you will not be forced to move on to another question. Remember, you should spend roughly minutes on each long answer and minutes on each short answer.

Make sure you stay on track to address each section of every question. No points can be awarded for answers left completely blank when time runs out. For examples of the scoring rubric used on this section, make sure to read the sample exam questions and scoring guidelines provided in the Course Description. Also be sure to read the authentic student responses with scoring explanations from the exam. Take another practice test, as you did at the start of your studying.

You should be able to identify areas of strength and weakness based off your performance, and can use your practice test results both to gauge the success of your previous studying and chart your course going forward. Include a discussion of the enzymatic reactions involved. Describe the following mechanisms of response to foreign materials in the human body. Discuss the processes of exchange of O2 and CO2 that occur at the alveoli and muscle cells of mammals. Include in your answer a description of the transport of these gases in the blood.

The graph below shows the response of the human immune system to exposure to an antigen. Use this graph to answer part a and part b of this question. Discuss the processes of cleavage, gastrulation, and neurulation in the frog embryo; tell what each process accomplishes. Describe an experiment that illustrates the importance of induction in development.

The evolutionary success of organisms depends on reproduction. Some groups of organisms reproduce asexually, some reproduce sexually, while others reproduce both sexually and asexually. Discuss the sources and actions of each of the following pairs of hormones in humans and describe the feedback mechanisms that control their release. Beginning at the presynaptic membrane of the neuromuscular junction, describe the physical and biochemical events involved in the contraction of a skeletal muscle fiber.

Include the structure of the fiber in your discussion. Describe the negative and positive feedback loops, and discuss how feedback mechanisms regulate each of the following.

AP Biology Test Score Calculator

Discuss how cellular structures, including the plasma membrane, specialized endoplasmic reticulum, cytoskeletal elements, and mitochondria, function together in the contraction of skeletal muscle cells. Structure and function are related in the various organ systems of animals. Select two of the following four organ systems in vertebrates:. For each of the two systems you choose, discuss the structure and function of two adaptations that aid in the transport or exchange of molecules or ions. Be sure to relate structure to function in each example.

Define the following plant responses and explain the mechanism of control for each. Cite experimental evidence as part of your discussion. Describe the structure of a bean seed and discuss its germination to the seedling stage. Include in your essay hormonal controls, structural changes, and tissue differentiation.

Describe the effects of plant hormones on plant growth and development. Design an experiment to demonstrate the effect of one of these plant hormones on plant growth and development. Trace the pathway in a flowering plant as the water moves from the soil through the tissues of the root, stem, and leaves to the atmosphere. Explain the mechanisms involved in conducting water through these tissues. Discuss the adaptations that have enabled flowering plants to overcome the following problems associated with life on land.

A group of students designed an experiment to measure transpiration rates in a particular species of herbaceous plant. Plants were divided into four groups and were exposed to the following conditions. The cumulative water loss due to transpiration of water from each plant was measured at minute intervals for 30 minutes.

Water loss was expressed as milliliters of water per square centimeter of leaf surface area. The data for all plants in Group I room conditions were averaged. The average cumulative water loss by the plants in Group I is presented in the table below. Numerous environmental variables influence plant growth.

Three students each planted a seedling of the same genetic variety in the same type of container with equal amounts of soil from the same source. Their data are shown below. Describe the trophic levels in a typical ecosystem. Discuss the flow of energy through the ecosystem, the relationship between the different trophic levels, and the factors that limit the number of trophic levels.

Describe and give an example of each of the following.

AP Biology 2018 Free Response (FRQ) Possible Answers*

Include in your discussion the selection advantage of each. Describe the process of ecological succession from a pioneer community to a climax community.

How to Respond to Biology FRQ Prompts

Include in your answer a discussion of species diversity and interactions, accumulation of biomass, and energy flow. Describe releasers, imprinting, and communications, as each of these terms relates to animal behavior. You may include in your answer a discussion of the classical studies of Niko Tinbergen, Konrad Lorenz, and Karl von Frisch. Describe the biogeochemical cycles of carbon and nitrogen. Trace these elements from the point of their release from a decaying animal to their incorporation into a living animal.

Living organisms play an important role in the recycling of many elements within an ecosystem. Discuss how various types of organisms and their biochemical reactions contribute to the recycling of either carbon or nitrogen in an ecosystem. Include in your answer one way in which human activity has an impact in the nutrient cycle you have chosen.

previous ap biology exam essays Previous ap biology exam essays
previous ap biology exam essays Previous ap biology exam essays
previous ap biology exam essays Previous ap biology exam essays
previous ap biology exam essays Previous ap biology exam essays
previous ap biology exam essays Previous ap biology exam essays
previous ap biology exam essays Previous ap biology exam essays
previous ap biology exam essays Previous ap biology exam essays

Related previous ap biology exam essays



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