phototropism
growth movement toward light in an organism
Source: Noland, George B. 1983. General Biology, 11th Edition. St. Louis, MO. C. V. Mosby ...
phototropism
[Gk. photos, light + trope, turning]
Growth of a plant shoot toward or away from light.
phyletic change ...
phototropism The reaction of plants to light in which the plants bend toward the light.
Phototropism growing or leaning in response to light
(photo = light; tropo = turn‚ change)
Physiology the study of the functioning of the various body parts
(physio = nature; -logy = to study) ...
Phototropism → growth towards light
Large leaf surface area → captures more light
Thin leaves → few cell layer → more light captured by chlorophyll
Leaf mosaic increases leaf exposure to light
Internal Structure ...
Phototropism in Arabidopsis thaliana is regulated by blue to UV light.[5]
Main article: Ecophysiology ...
phototropism The bending of a plant toward a unidirectional light source.
photovoltaic cell An energy-conversion device that captures solar energy and directly converts it to electrical current.
negative phototropism and
positive gravitropism
of roots.
The graph (based on the work of K. V. Thimann) shows the effect of auxin concentration on root and stem growth.
Charles Darwin and his son Francis studied the familiar reaction of plants growing toward light: phototropism. The Darwins discovered that the tips of the plant curved first, and that the curve extended gradually down the stem.
 See also: Tropism, Plant, Organ, Cell, Cells
  
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