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Block
In What are similarities between photosynthesis and cellular respiration?
What are differences between photosynthesis and cellular respiration?
What are the reactants and products for each process?
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Block
Through Concept Map Lab prep
OUTCellular Respiration worksheet
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Releasing Energy
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Releasing Energy
Starch
Maltose
GlucoseADP
ATP
Amylase
Cellular Respiration
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Using light energy to build matter
With your group develop a list of 3 variables that could affect the rate of photosynthesis.
1. __________2. __________3. __________
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Hypothesis
If we increase the amount of CO2 to a plant and light to the environment, then _______ _______________________________
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Procedure
1. Obtain a sprig of Elodea2. Remove a few leaves from the cut end.
3. Fill test tube halfway
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4. Gently slide plant into test tube, top side down.
5. Add water until Elodea is completely submersed.
6. Place test tube into test tube rack.
7. Place 75 watt lamp 5cm from heat sink.
8. Turn lamp on for 2 minutes. 9. Begin counting the number of oxygen
bubbles for 3 minutes.
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10. Run a second three-minute trial. Record results and average.
11. Turn lamp off and move it back so it is 20 cm from plant.
12. After 2 minutes, turn lamp on and record bubbles for two three-minute trials.
13. Record results and average. 14. Discard water and use water with
dissolved sodium bicarbonate. sodium bicarbonate sodium carbonate + water +
carbon dioxide
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15. Count bubbles for two 3 minute trials.
16. Record results and average.17. Graph results
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Observations and Data Table
Number bubbles
of Oxygen
Trial 1 (3min)
Trial 2 (3 min)
Average
Lamp 5 cm from plant
Lamp 20 cm from plant
Lamp 5 cm away with CO2
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Graphs
Complete a graph for this experimentGroups on the X-(5cm, 20 cm, 5 cm with CO2
Number of bubbles on the Y
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Conclusion
Write a conclusion for this labWas your hypothesis correct?What does your data show?What was the most important learning component from this lab?