AP Biology Practice Test 31

Test Information

Question 12 questions

Time 15 minutes

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Questions 1-3 refer to the following information.

A laboratory procedure involving plants presents you with the data found in the following 2 charts:

Transpiration Rate1.0 = Control Rate (All Leaves Have the Same Surface Area)

1. From the transpiration rate data, it appears that transpiration rate rises as

2. According to the Rf values given in the preceding smaller table, which pigment would migrate the fastest on chromatography paper?

3. From the transpiration rate data presented in the preceding larger table, which of the following plants appears to be most resistant to transpiration?

Questions 4-6 refer to the following information.

A population of rodents is studied over the course of 100 generations to examine changes in dental enamel thickness. Species that are adapted to eat food resources that require high levels of processing have thicker enamel than do those that eat softer, more easily processed foods. Answer the following questions using this information and the curves that follow.

4. How is average enamel thickness changing in this population?

5. You randomly pick one data point from all three sets of data (all three generations), and the individual’s enamel thickness score is 15. Which of the following can be inferred?

6. What inference can you make about this species’ diet?

Questions 7-10 refer to the following information.

A student sets up a lab experiment to study the behavior of slugs. She sets up a large tray filled with soil that measures 1 square meter and has four sets of conditions, one in each quadrant:

She places 20 slugs in the tray, 5 in each quadrant. Use this information to answer the following questions:

7. What is this lab setup called?.

8. After 5 minutes, there are 5 slugs in each quadrant. Which of the following is not a viable explanation for this finding?

9. After 20 minutes, 20 slugs are in the high-temperature, low-salinity quadrant. What kind of animal behavior has this experiment displayed?

10. A classmate has set up a similar experiment in the following manner:

Of the 20 slugs that she puts in her tray, 18 move to the high-salinity, high-temperature section within one hour, while the other 2 move to the low-salinity, low-temperature section. She concludes that slugs prefer conditions of high salinity and temperature. What is wrong with this conclusion?

11. Viral transduction is the process by which viruses carry bacterial DNA from one bacterial cell to another. In what way does this process play a role in bacterial evolution?

12. ADH is a hormone secreted by the kidneys that reduces the amount of water excreted in the urine. ADH is released in times of dehydration. This is an example of