
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 …
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 …
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, …
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 …
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.
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 …
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 …
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 | 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 …
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 …