Post Quiz (See related pages) 1 Which of the following cellular stains is considered a differential stain? A) Methylene blue B) Crystal violet C) Gram stain D) India ink 2 The Gram stain separates bacteria based on _________. A) the charge of the cell (either positive or negative) B) the presence or absence of nuclei C) differences in the structure of the cell wall 3 If a student wants to accurately determine the size of bacterial cells in a culture, which of the following dyes would you recommend they use? A) Methylene blue B) Crystal violet C) Safranin D) India ink 4 Which of the following chemicals acts as a mordant in the Gram stain procedure? A) Crystal violet B) Iodine C) Ethyl alcohol D) Safranin 5 Gram-positive cultures older than 24 hours may stain Gram negative due to changes in the peptidoglycan layer. A) True B) False
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Home > Exercise 8 > Post Quiz

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Choose one...Exercise 1Exercise 2Exercise 3Exercise 4Exercise 5Exercise 6Exercise 7Exercise 8Exercise 9Exercise 10Exercise 11Exercise 12Exercise 13Exercise 14Exercise 15Exercise 16Exercise 17Exercise 18Exercise 19Exercise 20Exercise 21Exercise 22Exercise 23Exercise 24Exercise 25Exercise 26Exercise 27Exercise 28Exercise 29Exercise 30Exercise 31Exercise 32Exercise 33Exercise 34Exercise 35Exercise 36Exercise 37Exercise 38Exercises 39-89

Quizzes Gram Stain Procaryotic Cell Shapes Peptidoglycan Synthesis PreQuiz Post Quiz