The data table shown represents the results of an investigation on the amount of CO2 produced by various plant parts over a 3-day period. Which
is an appropriate conclusion for the data shown?
Amount of Carbon Dioxide (CO2) in mL
Plant Part Starting Day 1 Day 2 Day 3
Leat
200
175
145
90
Stem
200
195
180
175
Root
200
220
235
250
A. The decrease in carbon dioxide (CO2) for the leaf was less than the decrease for
the stem
B. More oxygen was produced in the stem than in the leaf.
C. There was no photosynthesis taking place in the roots.
ОО
O D. The stem was performing photosynthesis at a faster rate than the leaf.
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