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Photosynthesis SAC

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Yacoubb:
Hey guys :)

I have a photosynthesis SAC coming up and I'd love to hear what SACs you did. I just want to have some sort of scope of what to expect for the SAC, for which my teacher told me is on photosynthesis, a nebulous answer!!

Thanks :)

Bad Student:
In my photosynthesis SAC, there were four test tubes filled with indicator. The first and second test tube contained a leaf, the third and fourth test tube didn't contain a leaf. We covered the first and third test tube using foil and then measured the rate of photosynthesis vs. rate of respiration by observing whether the colour of the indicator changed.

kerry.j:
Our class did a spinach leaf disc SAC similar to this http://www.elbiology.com/labtools/Leafdisk.html
We investigated the effect of light intensity on rate of photosynthesis, with three experimental groups. One in the dark, one close to a light and one far away from a light. Rate of photosynthesis was measured by how long it took for the leaf discs to float to the top.

Bad Student:
Most of my SACs so far have been adapted from the pracs in the Nature of Biology activity manual.

Stick:
Both of the photosynthesis experiments my Biology teachers trialled have failed. XD So our SAC is now an experimental design. Don't know whether to laugh or cry.

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