• Question: why is chloroplast green?

    Asked by anon-218581 to Shannah, Richard, Matthew (known as Kaan by, johnpaterson, Emma, Anna on 16 Jun 2019.
    • Photo: John Paterson

      John Paterson answered on 16 Jun 2019:

      Chloropasts look green because they’re filled with a chemical called chlorophyll. This is what absorbs light to help with photosynthesis. However chlorophyll only absorbs red and blue light. It doesn’t use green light so this is reflected back, making chlorophyll, and therefore chloroplasts, green.

    • Photo: Emma Markham

      Emma Markham answered on 16 Jun 2019:

      So, plants get there energy from sunlight. Sunlight is different wavelengths (which are different colors), this is what a rainbow is.
      Plants contain Chlorophyll inside chloroplasts, which carries out photosynthesis to capture the energy from sunlight. The plant cannot use all the wavelengths / colours of sunlight, and it only uses red and blue. Because it ‘captures’ red and blue, but it does not need green, so this is reflected and is the colour we see.

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    • Photo: Richard Gammons

      Richard Gammons answered on 17 Jun 2019:

      Chlorophyll is green : ))

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