Chlorophyll Does Not Reflect Green Light -- How to Correct a Misconception

Autor/inn/en	Virtanen, Olli; Constantinidou, Emanuella; Tyystjärvi, Esa
Titel	Chlorophyll Does Not Reflect Green Light -- How to Correct a Misconception
Quelle	In: Journal of Biological Education, 56 (2022) 5, S.552-559 (8 Seiten)Infoseite zur Zeitschrift PDF als Volltext Verfügbarkeit
Zusatzinformation	ORCID (Virtanen, Olli) ORCID (Tyystjärvi, Esa)
Sprache	englisch
Dokumenttyp	gedruckt; online; Zeitschriftenaufsatz
ISSN	0021-9266
DOI	10.1080/00219266.2020.1858930
Schlagwörter	Plants (Botany); Misconceptions; Scientific Concepts; Science Instruction; Color; Light; Optics; Elementary Secondary Education + Suchen Sie Ihr Suchwort? Pflanze; Missverständnis; Teaching of science; Science education; Natural sciences Lessons; Naturwissenschaftlicher Unterricht; Colour; Farbbezeichnung; Farbe; Licht; Optik
Abstract	Plant leaves are green because they contain the green photosynthetic pigments, chlorophylls a and b. Popular science literature, and sometimes even textbooks, state that the greenness is caused by reflection of green light by chlorophyll. In the present study, we compared the reflectance spectra of green leaves to yellow or white leaves of the same species. Chlorophyll-deficient leaves reflected green light more efficiently than green leaves of the same species, which conclusively refutes the misconception. The data show that the green colour of leaves is caused by preferential absorption of blue and red light by chlorophyll, not by reflection of green light by chlorophyll. The data suggest that the cellulose of the cell walls is the main component that diffusely reflects visible light within plant leaves. (As Provided).
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Erfasst von	ERIC (Education Resources Information Center), Washington, DC
Update	2024/1/01