Biology 2290F/G Lecture Notes - Transmittance, Dichlorophenolindophenol, Absorbance
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20 Oct 2011
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Photosynthesis Lab
Table 3.
Time (min) | Absorbance Unboiled Light (U) | Absorbance Unboiled Dark (D) | Absorbance Boiled Light (B) |
0 | 1.034 | 1.004 | 1.060 |
5 | 0.958 | 0.967 | 0.616 |
10 | 1.001 | 0.969 | 0.720 |
15 | 0.981 | 1.013 | 1.098 |
20 | 0.985 | 0.977 | 1.033 |
1. The following refer to DPIP (2,6-dichlorophenol-indophenol) and photosynthesis data in Table 3.
a. Is there evidence that chloroplasts were able to reduce DPIP in this experiment? Explain.
b. Were chloroplasts able to reduce DPIP when kept in the dark? Explain.
c. Were boiled chloroplasts able to reduce DPIP? Explain.