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Figure 10.7 Chromatogram of the Fatty Acid Profiles Each peak represents a different fatty acid; the size of the peak correlates with the relative amount of that particular molecule. (a) A chromatogram of the fatty acids of Pseudomonas cepacia and (b) a chromatogram of the fatty acids of a closely related species, Pseudomonas aeruginosa.

are sometimes unique enough to be considered identifying markers. Cellular fatty acid composition can be used as an identifying characteristic.

■ How does MacConkey agar help to identify the cause of a urinary tract infection?

■ Describe two methods that can be used to test for the enzyme urease.

■ Why must a sample contain many microorganisms for any to be viewed by microscopic examination?

Detox Diet Basics

Detox Diet Basics

Our internal organs, the colon, liver and intestines, help our bodies eliminate toxic and harmful  matter from our bloodstreams and tissues. Often, our systems become overloaded with waste. The very air we breathe, and all of its pollutants, build up in our bodies. Today’s over processed foods and environmental pollutants can easily overwhelm our delicate systems and cause toxic matter to build up in our bodies.

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