In 1882, Theodor Engelmann performed an important experiment in regards to photosynthetic activity. I am going to break down the experiment here. You will be asked to analyse the results in your assignment, I will not do that here! Let's start with what we know already about photosynthesis... Photosynthesis is done by producers and uses the sun's energy (light) to convert carbon dioxide and water into sugar and oxygen. What Engeleman did was place oxygen seeking bacteria and algae (single celled photosynthetic organisms) on a microscope slide. He illuminated the slide through a spectroscope. The spectroscope splits white light into the various wavelengths of light so that each section of the slide was receiving a different wavelength/colour of light. To break this down, we now have;
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