AP Biology · Free-response questions 2013

8 questions, each with its course unit and the official scoring guidelines.

Official paper (PDF) · QuestionsAll AP Bio papers→

Question 1

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Question 1 — 1. In an investigation of fruit-fly behavior, a covered choice chamber is used to test whether the spatial distribution of flies is affected by the presence of a substance placed at one end of the chamber. To test the…

Source: College Board — AP Biology, Free-response questions, 2013

Question 2

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Question 2 — Color Wavelength (nm) Violet 380–450 Blue 450–475 Cyan 475–495 Green 495–570 Yellow 570–590 Orange 590–620 Red 620–750 2. An absorption spectrum indicates the relative amount of light absorbed across a range of…

Source: College Board — AP Biology, Free-response questions, 2013

Question 3

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Question 3 — 3. Fossils of lobe-finned fishes, which are ancestors of amphibians, are found in rocks that are at least 380 million years old. Fossils of the oldest amphibian-like vertebrate animals with true legs and lungs are found…

Source: College Board — AP Biology, Free-response questions, 2013

Question 6

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Question 6 — 6. The following data were collected by observing subcellular structures of three different types of eukaryotic cells. RELATIVE AMOUNTS OF ORGANELLES IN THREE CELL TYPES Cell Type Smooth ER Rough ER Mitochondria Cilia…

Source: College Board — AP Biology, Free-response questions, 2013

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