What Is Phototropism? - Definition, Experiments & Examples


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question 1 of 3

Negative phototropism is ____, while positive phototropism is ____.

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1. Photoreceptors are cells that

2. Early scientists believed that plants bent toward light

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About This Quiz & Worksheet

With this quiz/worksheet combination, you will be assessed on things like negative and positive phototropism, photoreceptors, what early scientists hypothesized, sunlight's importance to plants, and chemical signals.

Quiz & Worksheet Goals

To be specific, you will be examined on the following:

  • Definitions of negative and positive phototropism
  • What photoreceptors do
  • Early science's take on plants bending toward the light
  • Why exposure to sunlight is important for plants
  • The chemical signal that causes plants to grow faster on the side farthest from the light

Skills Practiced

  • Interpreting information - verify that you can read information regarding the significance of plants receiving large amounts of sunlight and interpret it correctly
  • Critical thinking - apply relevant concepts to examine information about photoreceptors in a different light
  • Knowledge application - use your knowledge to answer questions about plants and light

Additional Learning

Interested in learning more about phototropism? Take a look at the accompanying lesson titled What Is Phototropism? - Definition, Experiments & Examples. The lesson will further walk you through topics like:

  • What phototropism is
  • Early experiments on phototropism
  • Examples of phototropism
  • Classifications of phototropism