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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 called …

  2. 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 direction.

  3. 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.

  4. 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 straighten out …

  5. 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, as found in the plant …

  6. Phototropism: Mechanisms and Examples in Plants and Fungi

    Plants and fungi exhibit remarkable adaptations to their environments, one of which is the ability to grow towards or away from light—a phenomenon known as phototropism. This growth response plays a …

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

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

  8. 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 their own …

  9. 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 phototropism is growth …

  10. Phototropism Explained: Definition, Examples, Practice ... - Pearson

    Blue light, being higher in energy, is particularly important for various plant processes, including phototropism—the growth of plants towards or away from light. Phototropism is mediated by …