E. Effect of UV Radiation Record the results for each plate at follows: 0 no growth + light growth ++ medium growth +++ heavy growth Also note any differences in appearance of growth on each of the plates. Bacteria | Visible light | UV lid on | UV lid off 5 sec | UV lid off 10 sec | UV lid off 1 min | UV lid off 10 min Serratia marcescens | ++ | +++ | +++ | +++ | ++ | +++ Bacillus subtilis | + | +++ | +++ | +++ | ++ | 0 Based on these results, answer the following questions: 1. Did visible light have any effect on microbial growth? 2. Did UV exposure with the lid on have any effect on microbial growth? 3. Explain any differences you observe between the two species tested. 4. Describe any other differences in the appearance of colonies on the irradiated plates.
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However, I will try to provide a general answer based on the information given. Let's assume we have the following results for the bacterial growth under different conditions: Show more…
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