Stain because the acidic properties of the negative

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stain because the acidic properties of the negative stain kills bacteria on contact making it possible for us to be able to observe them. B.Define the three major types of bacterial shapes. Which of these did you observe in the exercise?
C.Is Crystal Violet a basic substance or an acidic substance? Is Congo red a basic or an acidic substance? Describe how you were able to arrive at this conclusion and relate your findings to your experimental observations.
A.Describe the difference between Gram-negative and Gram-positive bacteria. Which type of bacteria are most often treatable with antibiotics and why?

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