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Select the correct statements about MacConkey agar. (Check all that apply)
Select the correct statements about MacConkey agar. (Check all that apply) Check All That Apply
A. The lactose in MacConkey agar is inhibitory to Gram positive cocci.
B. The selective ingredients in MacConkey agar are crystal violet and bile salts.
C. The growth of Gram positive bacteria is inhibited on MacConkey agar.
D. Most Gram negative bacilli grow well on MacConkey agar.
E. The pH indicator in MacConkey agar is crystal violet.
F. The differential ingredients in MacConkey agar include lactose and neutral red.
Lactose-fermenting Gram negative bacilli will form pink-purple colonies on MacConkey agar.
Final answer:MacConkey agar is selective for Gram-negative bacteria due to its inhibitory effect on Gram-positive cocci. It contains crystal violet and bile salts as selective ingredients.Explanation:MacConkey agar:The lactose in MacConkey agar is inhibitory to Gram positive cocci.The selective ingredients in MacConkey agar are crystal violet and bile salts.Most Gram negative bacilli grow well on MacConkey agar.The differential ingredients in MacConkey agar include lactose and neutral red.Lactose-fermenting Gram negative bacilli will form pink-purple colonies on MacConkey agar....
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