Exam (elaborations) BIOD 171 (Microbiology)
The heat fixing procedure kills the specimen. This also prevents any observations on motility and enzymatic properties. 2. What is the proper way to dispose of all materials used during the lab? All materials must be place in a biohazardous waste bag and placed into an autoclave for sterilization. 3. What are the Gram status, shape and identification of organism #2 from the Gram stain procedure? Gram-negative; Bacillus (rod); E. Coli 4. What are the Gram status, shape and identification of organism #5 from the Gram stain procedure? Gram-positive; Cocci (spherical) chain; Streptococcus LAB 4 1. What type of media is best used to eliminate certain bacteria from within a mixed culture? Selective media 2. According the lab module, what type of agar plate is the most commonly used nutrient agar? What color is it? LB agar; Light (or pale) yellow 3. What was the name of the selective agar plate (shown below) that is similar to a blood agar plate? MacConkey agar
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