Color of Leaf vs Floating Leaf Disks by Martin Klein https://padlet.com/mklein2195/fek8vsdx9m47lfrw en-us 2022-01-24 20:47:16 UTC 2025-12-06 21:30:42 UTC hello@padlet.com Problem cconsiglio2060 https://padlet.com/mklein2195/fek8vsdx9m47lfrw/wish/2009799712 The question we are trying to solve is do purple leaves do photosynthesis]]> 2022-01-24 20:53:48 UTC https://padlet.com/mklein2195/fek8vsdx9m47lfrw/wish/2009799712 Hypothesis mklein2195 https://padlet.com/mklein2195/fek8vsdx9m47lfrw/wish/2009802815 We hypothesize the a purple leaf would have more floating disks due to the fact that darker colors absorb more light.]]> 2022-01-24 20:55:52 UTC https://padlet.com/mklein2195/fek8vsdx9m47lfrw/wish/2009802815 Materials mklein2195 https://padlet.com/mklein2195/fek8vsdx9m47lfrw/wish/2009805782 Sodium bicarbonate solution, syringe, purple lettuce, green spinach, lamp, timer, hole puncher.]]> 2022-01-24 20:57:22 UTC https://padlet.com/mklein2195/fek8vsdx9m47lfrw/wish/2009805782 Purple Lettuce csharpe2385 https://padlet.com/mklein2195/fek8vsdx9m47lfrw/wish/2009810094 The data table above shows us that purple lettuce did not photosynthesize in the bicarbonate solution.]]> 2022-01-24 20:59:25 UTC https://padlet.com/mklein2195/fek8vsdx9m47lfrw/wish/2009810094 Procedure mklein2195 https://padlet.com/mklein2195/fek8vsdx9m47lfrw/wish/2009990603
  • Use hole puncher to cut out ten leaf disk for the purple leaf the ten disks for the green leaf.
  • Place the leaf disks at the bottom of a syringe barrel, separate by color.
  • Fill each syringe with 5ml of bicarbonate solution tap to remove bubbles.
  • Create a vacuum by placing your finger over the opening and drawing back the plunger. Hold vacuum for 10 seconds.
  • Repeat process 2 to 3 times until all leaf disks sink.
  • Place syringes under light source and begin timing.

    • ]]>     2022-01-25 00:00:05 UTC https://padlet.com/mklein2195/fek8vsdx9m47lfrw/wish/2009990603     Variables mklein2195 https://padlet.com/mklein2195/fek8vsdx9m47lfrw/wish/2009994572 Independent: color of leaf
    Dependent: floating leaf disks]]>     2022-01-25 00:04:36 UTC https://padlet.com/mklein2195/fek8vsdx9m47lfrw/wish/2009994572     Control mklein2195 https://padlet.com/mklein2195/fek8vsdx9m47lfrw/wish/2009995110 Syringe with green leaves]]> 2022-01-25 00:05:15 UTC https://padlet.com/mklein2195/fek8vsdx9m47lfrw/wish/2009995110 Factors held constant mklein2195 https://padlet.com/mklein2195/fek8vsdx9m47lfrw/wish/2009997621
  • Distance from light
  • Amount of solution 
  • Time 
  • Size of disks
  • Temperature 
  • Color of light
    • ]]>     2022-01-25 00:08:19 UTC https://padlet.com/mklein2195/fek8vsdx9m47lfrw/wish/2009997621     Green Spinach csharpe2385 https://padlet.com/mklein2195/fek8vsdx9m47lfrw/wish/2010321767 Our Green Spinach results tell us that there was photosynthesis occurring in the bicarbonate solution.]]> 2022-01-25 04:30:29 UTC https://padlet.com/mklein2195/fek8vsdx9m47lfrw/wish/2010321767 Graph csharpe2385 https://padlet.com/mklein2195/fek8vsdx9m47lfrw/wish/2010326950 Graph for Green Spinach shows us that every disk was floating by the time the timer reached 7 minutes.]]> 2022-01-25 04:34:50 UTC https://padlet.com/mklein2195/fek8vsdx9m47lfrw/wish/2010326950 Graph csharpe2385 https://padlet.com/mklein2195/fek8vsdx9m47lfrw/wish/2010339776 Since the line stays at zero throughout the whole graph, we know that there was no photosynthesis occurring in the purple lettuce.]]> 2022-01-25 04:45:50 UTC https://padlet.com/mklein2195/fek8vsdx9m47lfrw/wish/2010339776 cconsiglio2060 https://padlet.com/mklein2195/fek8vsdx9m47lfrw/wish/2011634744 2022-01-25 16:33:26 UTC https://padlet.com/mklein2195/fek8vsdx9m47lfrw/wish/2011634744 cconsiglio2060 https://padlet.com/mklein2195/fek8vsdx9m47lfrw/wish/2011637210 2022-01-25 16:34:22 UTC https://padlet.com/mklein2195/fek8vsdx9m47lfrw/wish/2011637210 Interpreting Results/Abstract cconsiglio2060 https://padlet.com/mklein2195/fek8vsdx9m47lfrw/wish/2011829398 From our hypothesis and experiment it turns out that darker pigment on the leaves(purple) doesn’t increase the rate of absorption of light. This can be proven by our data because zero purple discs floated and all ten green discs floated after the 18 minutes. This shows that photosynthesis was not taking place in the purple leaves because the purple leaves did not make Oxygen which is one of the end products in photosynthesis. ]]> 2022-01-25 17:49:05 UTC https://padlet.com/mklein2195/fek8vsdx9m47lfrw/wish/2011829398 Research mklein2195 https://padlet.com/mklein2195/fek8vsdx9m47lfrw/wish/2012181124 The purple leaves of the radicchio lattice is covered by green leaves when in the wild. These purple leaves on the inside are a good secondary photosynthesis source as they are covered almost entirely by green leaves that do carry out most the photo synthesis. We could’ve possibly ran the experiment longer to see if the few purple lettuce chloroplasts could’ve produced oxygen. ]]> 2022-01-25 20:31:09 UTC https://padlet.com/mklein2195/fek8vsdx9m47lfrw/wish/2012181124