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APEX 1.3.3 Dry Lab Investigate Cycling of O2 and CO2 Environmental Science $9.49   Add to cart
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APEX 1.3.3 Dry Lab Investigate Cycling of O2 and CO2 Environmental Science
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  • SCIENCE 55
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  • SCIENCE 55

1.3.3 Lab: Investigate Cycling of O2 and CO2 Dry Lab Environmental Science In this investigation, you will observe the release of O2 and CO2 into the environment. Gas production by two types of organisms will serve as evidence of photosynthesis and cellular respiration in action. In part 1, ...

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  • January 23, 2023
  • 12
  • 2022/2023
  • Other
  • Unknown

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  • dry lab
  • you will observe t
  • apex 133 dry lab investigate cycling of o2 and co2 environmental science
  • 133 lab investigate cycling of o2 and co2 dry lab environmental science in this investigation

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1.3.3 Lab: Investigate Cycling of O2 and CO2
Dry Lab
Environmental Science
Name: Aidan Wilkerson
Date: 8/25/2020


In this investigation, you will observe the release of O2 and CO2 into the environment. Gas
production by two types of organisms will serve as evidence of photosynthesis and cellular
respiration in action. In part 1, you will vary the amount of sugar present and observe the effect
on cellular respiration. You will also observe how the rates of these processes vary as
environmental conditions vary. In part 2, you will vary the amount of light and observe the effect
on photosynthesis. (Procedure moved to the bottom for convenience. Also, sorry about the wide
spacing. I wanted the questions to be on the same page as the answers.)

, Data for Part 1: Observing Evidence of Cellular Respiration


What changes, if any, did you notice in the bottles or balloons as you made observations?
Answer:

 The balloons on bottles with no sugar did not expand.

 The balloons on bottles with sugar took 30 minutes to start expanding.

 The bottles that contain sugar expanded more with every observation.

 Foam formed on top of the solution in bottles that contain sugar.



Data Table for Observing Cellular Respiration:


Circumference of balloon (inches)




No sugar Some sugar More sugar




Trial 1
0 8.5 10.5
(bottles 1, 3, & 5)




Trial 2
0 7.5 11.5
(bottles 2, 4, & 6)

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