AP生物学考试真题辅无忧有吗？

    这几年越来越多的学生在接触国际课程，AP作为著名国际课程之一，自然有很多中国学生在学习，备考时也要结合真题训练，有学生在咨询AP课程辅导，想知道AP生物学考试真题辅无忧有吗？

    自然是有的，这里辅无忧给大家分享美国大学理事会（College Board）官方发布的2019年AP生物学考试真题。考试共分为两个部分，一部分为选择题，一部分为开放性题目，这里先给大家分享选择题部分的内容。

    部分A：单选题（每题1分，共63分）

    1.In a plant cell, which of the following functions is accomplished by the structure labeled "X" in the diagram below?

    [图片描述：细胞图，标有“X”的结构为中心体]

    A. secretion of hormones

    B. regulation of cell size

    C. formation of spindle fibers

    D. organization of microtubules

    2.Which of the following correctly pairs the pigment with the color it reflects?

    A. chlorophyll a - green

    B. chlorophyll b - red

    C. carotenoids - blue

    D. phycocyanin - yellow

    3.A researcher is investigating the effects of a new drug on the resting membrane potential of neurons. In a neuron, which of the following ions is primarily responsible for the resting potential?

    A. potassium

    B. sodium

    C. chloride

    D. calcium

    4.Which of the following types of organisms is characterized by having cells with a nucleus and membrane-bound organelles?

    A. bacteria

    B. archaea

    C. fungi

    D. protists

    5.Which of the following is NOT a function of the circulatory system in humans?

    A. delivering nutrients and oxygen to cells

    B. removing wastes from cells

    C. transporting hormones throughout the body

    D. producing immune cells to fight infections

    6.A scientist is studying the effects of temperature on the rate of photosynthesis in a plant. Which of the following best explains why the rate of photosynthesis decreases at temperatures above 35°C?

    A. the enzymes involved in photosynthesis become denatured

    B. there is insufficient carbon dioxide for photosynthesis

    C. the plant cells cannot produce enough ATP

    D. the plant cells cannot produce enough NADPH

    7.Which of the following best describes the relationship between transcription and translation?

    A. transcription is the process by which RNA is synthesized from DNA, and translation is the process by which RNA directs the synthesis of a protein

    B. transcription is the process by which RNA directs the synthesis of a protein, and translation is the process by which RNA is synthesized from DNA

    C. transcription and translation are the same process

    D. transcription and translation occur independently of each other

    多选题（每题2分，共27分）

    9.Which of the following are structural components of a virus?

    A. capsid

    B. plasma membrane

    C. ribosome

    D. DNA or RNA

    10.Which of the following factors influence the rate of diffusion across a membrane?

    A. temperature

    B. concentration gradient

    C. surface area of the membrane

    D. size of the diffusing molecule

    11.Which of the following best describes the mechanism of action of enzymes?

    A. enzymes provide energy for chemical reactions to occur

    B. enzymes lower the activation energy of chemical reactions

    C. enzymes increase the concentration of reactants in chemical reactions

    D. enzymes stabilize the products of chemical reactions

    AP生物学考试真题辅无忧有吗？辅无忧已经给大家分享了部分真题，如果在备考时需要寻找AP生物学辅导的帮助，也可以来了解下我们辅无忧哦，具体了解可咨询客服。