2012 AP Biology生物真題系列之簡答題免費(fèi)下載

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2012 AP Biology Free-Response Questions Free Download

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部分真題預(yù)覽：

1）An agricultural biologist was evaluating two newly developed varieties of wheat as potential crops. In an experiment, seedlings were germinated on moist paper towels at 20oC for 48 hours. Oxygen consumption of the two-day-old seedlings was measured at different temperatures. The data are shown in the graph below.

TRICHOME DENSITY IN THREE PLANT POPULATIONS(number of trichomes/cm²)

1. Calculate the rates of oxygen consumption in mL/min for each variety of wheat at 7°C and at 17°C. Show your work (including your setup and calculation).
2. Explain the relationship between metabolism and oxygen consumption. Discuss the effect of temperature on metabolism for each variety of seedlings.
3. In a second experiment, variety A seedlings at both temperatures were treated with a chemical that prevents NADH from being oxidized to NAD+. Predict the most likely effect of the chemical on metabolism and oxygen consumption of the treated seedlings. Explain your prediction.

 

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2012 AP Biology Practice Exam Free-Response Questions Free Download

2012 AP 生物模考簡答題部分免費(fèi)下載

此套題共計(jì)時1小時30分鐘

共8題

每道大題可能含有不同數(shù)量的小題

可以使用簡單的Four-function計(jì)算器（帶有開平方功能）

考試時會提供相應(yīng)的方程和等式列表

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2012 AP Biology Practice Exam FRQ真題題目

 

 

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