In Figure 1, what is the relationship between Pyruvate concentration and strain SN2 in TF-P?

The bacterial strain SN2 (Alteromonas naphthalenivorans) is known to contaminate both tidal flats and seawater. The graphs in Figure 1 show the results of an experiment intended to measure the cell growth of SN2 in a tidal flat environment with added Naphthalene (TF-N) and a tidal flat environment with added Pyruvate (TF-P). The concentration of Naphthalene and Pyruvate were also measured within this experiment. Additionally, changes in the optical density of seawater was measured when both Naphthalene and Pyruvate were added. The goal of this experiment was to better understand the Eco physiological behavior of SN2 in contaminated environments. The graphs in Figure 2 depict levels of correlation in level of gene expression between conditions.

Science lesson Science Practice Test 9 exam questions 1. question pragraph

Figure 1

Science lesson Science Practice Test 9 exam questions 1. question pragraph

Figure 2

Figures adapted from Genome-wide transcriptional responses of Alteromonas naphthalenivorans SN2 to contaminated seawater and marine tidal flat sediment by Hyun mi Jin et al.

As one decreases, the other increases.

As one decreases, the other does as well.

As one increases, the other does as well.

There is no clear relationship between concentrations in Figure 1.

(A) In Figure 1, as Pyruvate concentration decreases, SN2 TF-P concentration increases. Consider only the top graph and points that are shaded white. During all time intervals Pyruvate concentration was measured, SN2 TF-P concentration increased while Pyruvate concentration decreased.

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