Cooking with Laurtoria

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Uploaded by on Dec 1, 2008

Photosynthesis is a very complex process; therefore, our group has decided to explain photosynthesis by decorating a cake, which represents the chloroplast, and using candy on the cake, which represents the parts within the chloroplast. To show the entire process from start to finish we have put together a food show that outlines each step of photosynthesis. The twizzler that separates the two halves of the cake represent the Thylakoid Membrane. The two halves represent the Thylakoid space and the Stroma. The three circular gummies located on the twizzler represent the accessory protein, the cytochrome, and the site where ATP synthase takes place. On top of the accessory protein we have placed three green dots using icing that signifies the chlorophyll. Two marshmallows and a gummies make up the water molecule that will undergo photolysis, and the tiny raisins placed on the water molecule and the accessory proteins epitomize the electrons that are released during photosynthesis.
We begin by explain photosynthesis by turning on a lamp that acts as the sun hitting the chlorophyll and absorbing the suns energy. We then take away one of the raisins from the accessory protein to display how an electron is released out of the orbit due to the photon absorbing the light. The oxidized chlorophyll molecule replaces the lost electron with an electron, or raisin, from the water molecule. This results in the water molecule to break apart which is called photolysis. We show how the oxygen is given off from photolysis, and the lost electron gets passed along to the cytochrome, by moving the raisin onto the gummie that symbolizes the cytochrome. We moved marshmallows that symbolized protons across the Thylaokid Membrane to the bottom half of the cake, which is the Thylakoid Space. We added many more marshmallows to represent the chemiosmotic gradient, and then we made a tube with the gummies that represented the site of ATP synthase. We moved the marshmallows up this tube and put the rest of the marshmallows at the top of the cake to symbolize the transfer to the Stroma, and the ultimate creation of ATP, chemical energy!

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  • i was studying for my living enviornment midterm and this really helped ty

  • I was looking for some good videos to get ready for my bio exam, and this is both entertaining and thoroughly informative. As a bio major, I think it's geektastic :D I did pretend the cake and gummies were vegan, tho :P

  • Dee----lish! A very thorough treatment of a complex phenomenon. I couldn't take my eyes off those gummies. I think your viewers will learn a lot.

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