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Kit, Enzyme Action
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Students can investigate how some bacteria secrete enzymes to help in digestion. Includes lyophilized cultures of lac (+) and (-) Escherichia coli, Streptococcus mitis, Streptococcus salivarius, blood agar plate, Mac-Conkey agar, 3% hydrogen peroxide, slides, swab, inoculating loop and instructions. Includes 3 activities. 30 students.

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