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2017年AP生物真题及下载-简答题(FRQ)部分

2019-04-30 00:17 三立在线 admin

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摘要:真题是离AP实战考试最近的复习资料,好好把握往年的AP真题对准备AP考试的考生来说十分重要。为此,三立小编为大家整理了2010-2018年AP各科考试真题大全。本文,小编为大家带来的是2017年AP生物真题及下载-简答题(FRQ)部分,希望对你有所帮助! Directions: Questions 1 and 2 are long free-response questions that require about 22 minutes each to answer and are worth 10 p

  真题是离AP实战考试最近的复习资料,好好把握往年的AP真题对准备AP考试的考生来说十分重要。为此,三立小编为大家整理了2010-2018年AP各科考试真题大全。本文,小编为大家带来的是2017年AP生物真题及下载-简答题(FRQ)部分,希望对你有所帮助!

  Directions: Questions 1 and 2 are long free-response questions that require about 22 minutes each to answer and are worth 10 points each. Questions 3 – 8 are short free-response questions that require about 6 minutes each to answer. Questions 3 – 5 are worth 4 points each and questions 6 – 8 are worth 3 points each.

  Read each question carefully and completely. You are advised to spend the 10 -minute reading period planning your answers. You may begin writing your responses before the reading period is over. Write your response in the space provided for each question. Only material written in the space provided will be scored. Answers must be written out in paragraph form. Outlines, bulleted lists, or diagrams alone are not acceptable.

  2017年AP生物真题及下载-简答题(FRQ)部分

  In flowering plants, pollination is a process that leads to the fertilization of an egg and the production of seeds. Some flowers attract pollinators, such as bees, using visual and chemical cues. When a bee visits a flower, in addition to transferring pollen, the bee can take nectar from the flower and use it to make honey for the colony.

  Nectar contains sugar, but certain plants also produce caffeine in the nectar. Caffeine is a bitter-tasting compound that can be toxic to insects at high concentrations. To investigate the role of caffeine in nectar, a group of researchers studied the effect of 0.1 mM caffeine on bee behavior. The results of an experiment to test the effect of caffeine on bees’ memory of a nectar source are shown in Table 1.

  (a)    On the axes provided, construct an appropriately labeled graph to illustrate the effect of caffeine on the probability of bees revisiting a nectar source (memory).

  (b)   Based on the results, describe the effect of caffeine on each of the following:

  ·     Short-term (10 minute) memory of a nectar source

  ·     Long-term (24 hour) memory of a nectar source

  (c)    Design an experiment using artificial flowers to investigate potential negative effects of increasing caffeine concentrations in nectar on the number of floral visits by bees. Identify the null hypothesis, an appropriate control treatment, and the predicted results that could be used to reject the null hypothesis.

  (d)   Researchers found that nectar with caffeine tends to have a lower sugar content than nectar without caffeine. Plants use less energy to produce the caffeine in nectar than they do to produce the sugar in nectar. Propose ONE benefit to plants that produce nectar with caffeine and a lower sugar content. Propose ONE cost to bees that visit the flowers of plants that produce nectar with caffeine and a lower sugar content.

  2017年AP生物真题及下载-简答题(FRQ)部分2017年AP生物真题及下载-简答题(FRQ)部分2017年AP生物真题及下载-简答题(FRQ)部分2017年AP生物真题及下载-简答题(FRQ)部分2017年AP生物真题及下载-简答题(FRQ)部分2017年AP生物真题及下载-简答题(FRQ)部分2017年AP生物真题及下载-简答题(FRQ)部分

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