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  1. Phototropism - Wikipedia

    Phototropism is one of the many plant tropisms, or movements, which respond to external stimuli. Growth towards a light source is called positive phototropism, while growth away from light is …

  2. Phototropism: Growing towards an Understanding of Plant …

    Phototropism, or the differential cell elongation exhibited by a plant organ in response to directional blue light, provides the plant with a means to optimize photosynthetic light capture …

  3. Phototropism – Definition and Steps With Diagram - Science Facts

    Feb 2, 2023 · Based on the orientation of a plant or other organisms in response to light, phototropism is of two types: Positive phototropism: Growing in the direction of a light source, …

  4. What Is Phototropism and How Does It Affect Plant Growth?

    Jul 19, 2025 · Phototropism is the growth response of a plant in relation to light direction. The term derives from the Greek words “photo,” meaning light, and “tropos,” meaning turn or …

  5. What Is Phototropism? - ThoughtCo

    Apr 29, 2025 · Phototropism is when plants bend toward light to get more energy for growth. Charles Darwin conducted early experiments to show that plants move towards a light source.

  6. Phototropism - Definition, Examples and Quiz | Biology Dictionary

    Apr 28, 2017 · Phototropism is the ability of a plant, or other photosynthesizing organism, to grow directionally in response to a light source. Plants and other autotrophs need to manufacture …

  7. Phototropism – Definition, Types, Mechanism, Importance, …

    Mar 28, 2024 · What is Phototropism? Phototropism refers to the directional growth exhibited by photosynthesizing organisms, predominantly plants, in response to light stimuli. This …

  8. Phototropism & photoperiodism (article) | Khan Academy

    One important light response in plants is phototropism, which involves growth toward—or away from—a light source. Positive phototropism is growth towards a light source; negative …

  9. Phototropism | biology | Britannica

    Light affects both the orientation of the seedling and its form. When a seed germinates below the soil surface, the plumule may emerge bent over, thus protecting its delicate tip, only to …

  10. Phototropism - Biology Simple

    Jan 30, 2025 · Phototropism is how plants grow towards light. This natural response helps them get the sunlight they need for photosynthesis. Understanding phototropism can teach us a lot …