biology lab wk 8

biology lab wk 8.

I’m studying for my Biology class and don’t understand how to answer this. Can you help me study?

Procedure I ‐ Mushroom Yield ‐ Effect of Nitrate Concentration Level

Sources of nitrate in soil include decomposing plants, animal waste, and fertilizer.

You will do trials at nitrate concentrations of 1.0 ppm, 10.0 ppm, 35.0 ppm, and 50.0 ppm

  1. select the Nitrate Test setup by clicking or tapping on its button
  2. confirm that the concentration is set to the appropriate value for the trial, adjust the slider if needed
  3. start the data run by clicking or tapping on the Start Data Run button
    Note: allow 36 seconds for the data run to complete ‐ do not interrupt the data run
  4. record the mushroom count in the Procedure I table of your Activity Form
  5. take a screenshot of this completed data run (it will be used to confirm your identity and Activity Data Code)
  6. press the reset button and run your next trial (repeat steps 1-4) or move on to the next procedure

Procedure II ‐ Mushroom Yield ‐ Effect of Heavy Metal Concentration Level

Sources of heavy metals in soil include natural processes (e.g. emissions from volcanoes) and human activities (e.g. coal-burning power plants and other industrial processes).

You will do trials at heavy metal concentrations of 0.00 ppm, 0.50 ppm, 1.00 ppm, and 1.50 ppm

  1. select the Metal Test setup by clicking or tapping on its button
  2. confirm that the concentration is set to the appropriate value for the trial, adjust the slider if needed
  3. start the data run by clicking or tapping on the Start Data Run button
    Note: allow 36 seconds for the data run to complete ‐ do not interrupt the data run
  4. record the mushroom count in the Procedure II table of your Activity Form
  5. press the reset button and run your next trial (repeat steps 1-4) or move on to the next procedure

Procedure III ‐ Mushroom Yield ‐ pH Dependence

Acid rain, naturally occurring minerals, and the amount of rainfall and soil drainage impact soil pH.

You will do trials at pH values of 5.0, 6.0, 7.0, and 8.0

  1. select the pH Test setup by clicking or tapping on its button
  2. confirm that the pH is set to the appropriate value for the trial, adjust the slider if needed
  3. start the data run by clicking or tapping on the Start Data Run button
    Note: allow 36 seconds for the data run to complete ‐ do not interrupt the data run
  4. record the mushroom count in the Procedure III table of your Activity Form
  5. press the reset button and run your next trial (repeat steps 1-4) or move on to the next procedure

Post-Activity

Complete any remaining questions. To help with the questions, review the background material and your data.

biology lab wk 8

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