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One can grow plants in the dark because the dominant type of chlorophyll in plants only needs the purple wavelength of light to function. Therefore, using red and blue light, one can create purple light that the plants c... More »

www.reference.com Science Biology Botany

There are not six months of darkness in Alaska. The northernmost town of Barrow only gets 67 days of winter with no sun. Only places above the Arctic Circle get days with no sun during the winter, so a good portion of Al... More »

www.reference.com Geography United States Alaska

“Edge of Darkness” received positive to mixed reviews, with very few negative receptions from movie critics. The Hollywood Reporter and USA Today both praised Mel Gibson’s performance in the film. USA Today explained it’... More »

www.reference.com Art & Literature
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The two main types of plants that are naturally without chlorophyll are called the Dodders (Cuscuta) and Broomrape (Orobanche). Some other plants don’t make enough chlorophyll due to a condition called chlorosis. More »

www.reference.com Science Biology Botany

For photosynthesis to occur, plants need sunlight, water, carbon dioxide and chlorophyll. Through the process of photosynthesis plants convert light energy into chemical energy. They use this energy to make food which th... More »

www.reference.com Science Biology Botany

Thylakoid membranes contain chlorophyll and other pigments that capture light so plants can conduct photosynthesis. The thylakoids are arranged in stacks inside the chloroplasts of a plant, with each stack connected to t... More »

www.reference.com Science Biology Botany

Nitrates are one of the three forms of nitrogen found in soil that plants use to grow and produce chlorophyll and proteins. It is a component of DNA, which transfers genetic information cell reproduction and plant reprod... More »

www.reference.com Science Biology Botany