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Unformatted text preview: AP® Biology
2002 Free-Response Questions
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Copyright © 2002 by College Entrance Examination Board. All rights reserved. College Board, Advanced Placement Program, AP, SAT, and the acorn logo
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Educational Testing Service and ETS are registered trademarks of Educational Testing Service. 2002 AP® BIOLOGY FREE-RESPONSE QUESTIONS (Form B)
Time—1 hour and 30 minutes Directions: Answer all questions.
Answers must be in essay form. Outline form is not acceptable. Labeled diagrams may be used to supplement
discussion, but in no case will a diagram alone suffice. It is important that you read each question completely before
you begin to write. Write all your answers on the pages following the questions in this booklet.
1. Bacteria were cultured in a system that allowed for the continual addition of fresh nutrients and the removal
of waste products. Bacteriophage (virus) were added at the time shown and the following population changes
were observed. (a) Describe and explain the observed results.
(b) Discuss the infection cycle of a DNA virus from attachment to lysis.
(c) Describe how the genome of a retrovirus like HIV (Human Immunodeficiency Virus) becomes
incorporated into the genome of the host cell. Copyright © 2002 by College Entrance Examination Board. All rights reserved.
Advanced Placement Program and AP are registered trademarks of the College Entrance Examination Board. 2 GO ON TO THE NEXT PAGE. 2002 AP® BIOLOGY FREE-RESPONSE QUESTIONS (Form B)
2. In mammals, heart rate during periods of exercise is linked to the intensity of exercise.
(a) Discuss the interactions of the respiratory, circulatory, and nervous systems during exercise.
(b) Design a controlled experiment to determine the relationship between intensity of exercise and
(c) On the axes provided below, indicate results you expect for both the control and the experimental
groups for the controlled experiment you described in part B. Remember to label the axes. 3. The physical form of cells and organisms is often influenced by special structural polymers. Choose one
polymer from each of the following three pairs of polymers:
Pair 1: tubulin . . myosin
Pair 2: cellulose . . chitin
Pair 3: messenger RNA . . transfer RNA
For each of the three polymers you have chosen, describe its
(a) structure, and
(b) role in a cell or organism.
4. A triploblastic animal is one in which three germ layers form during embryonic development. Triploblastic
animals include acoelomate, pseudocoelomate, and coelomate (eucoelomate) organisms.
(a) Identify the three germ layers of a triploblastic embryo and discuss the fates of these germ layers in
(b) Describe acoelomate, pseudocoelomate, and coelomate body plans. Identify an animal that is representative of each of these types of body plan.
(c) Compare and contrast the digestive systems of an acoelomate and a coelomate organism. END OF EXAMINATION
Copyright © 2002 by College Entrance Examination Board. All rights reserved.
Advanced Placement Program and AP are registered trademarks of the College Entrance Examination Board. 3 ...
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This note was uploaded on 11/23/2009 for the course BIOLOGY 1101 taught by Professor Keith during the Winter '05 term at The University of Oklahoma.
- Winter '05