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Chapter 1

BIOL 1000 Chapter Notes - Chapter 1: Pressure Measurement, Pipette, Methylene BlueExam


Department
Biology
Course Code
BIOL 1000
Professor
Nicole Nivillac
Chapter
1

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BIOL 1000 Fall 2017 Victoria Sanfrancesco
Lab 1 #215535826
Section B, Laboratory 07
Table 1: Photosynthetic rates and oxygen production data collected for the aquatic plant,
Cabomba caroliniana, exposed to a white light source. Data was collected in two trials. The
control test tubes are in absence of the aquatic species, Cabomba caroliniana. The
photosynthetic rate was calculated by the slope of the cumulative oxygen production and then
divided by the corresponding plant weight with the unit mL O2 produced/g/hr.
Figure 1: The cumulative O2 production for the Cabomba caroliniana was measured in a
manometric apparatus over a time interval of 0.27 hours (16 min). Photosynthetic rates and
oxygen production data plotted for the aquatic plant, Cabomba caroliniana, with the treatment
level a white colored light. The lines of best fit for each test tube represents the corresponding
photosynthetic rate in mL O2 produced/g/hr.
Photosynthetic Rate and Oxygen
Production in Cabomba caroliniana
-0.05
0
0.05
0.1
0.15
0.2
0.25
0.3
0.35
0.4
0.45
0 0.03 0.07 0.1 0.13 0.17 0.2 0.23 0.27
Cumulative Oxygen Production (mL O2produced)
Time (hours)
Experimental Tube 1 (Trial 1) Experimental Tube 2 (Trial 1) Control Tube (Trial 1)
Experimental Tube 1 (Trial 2) Experimental Tube 2 (Trial 2) Control Tube (Trial 2)
Time (hr) 0 0.03 0.07 0.1 0.13 0.17 0.2 0.23 0.27
mL O2
produced
/hr
Weight of
Aquatic
Plant (g)
Photosynthetic
Rate (mL oxygen
produced/g/hr)
Experimental Tube 1 (Trial 1) 0 0.03 0.08 0.11 0.15 0.21 0.25 0.31 0.34 1.31 5.95 0.22
Experimental Tube 2 (Trial 1) 0 0.02 0.05 0.07 0.1 0.15 0.19 0.21 0.25 0.94 6.05 0.15
Control Tube (Trial 1) 0 0 0 0 0 0 0 0 0 0 0 0
Experimental Tube 1 (Trial 2) 0 0.03 0.08 0.13 0.21 0.27 0.3 0.35 0.41 1.57 5.95 0.26
Experimental Tube 2 (Trial 2) 0 0.04 0.07 0.1 0.17 0.2 0.23 0.25 0.32 1.21 6.05 0.2
Control Tube (Trial 2) 0 0 0 0 0 0 0 0 0 0 0 0
Treatment 1
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