The Gram Stain: Theory and Procedure


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question 1 of 3

Gram-positive bacteria appear

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1. Gram-negative bacteria appear

2. A mordant is

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About This Quiz & Worksheet

This quiz and worksheet combination will help you test your knowledge of the Gram stain method, the theory behind it, and the actual procedure for performing this type of analysis. The questions on the quiz will test you on your understanding of gram-positive and gram-negative bacteria, the major components of the Gram stain, and the importance of mordants.

Quiz & Worksheet Goals

In these assessments on the predominant method for bacterial analysis, you'll be tested on:

  • The different characteristics of gram-positive and gram-negative bacteria
  • The definition and importance of mordants
  • The major components of the Gram stain method
  • Characteristics of this method

Skills Practiced

This quiz and worksheet will allow you to test your skills in the following areas:

  • Reading comprehension - ensure that you draw and retain the most important information on the Gram stain theory and procedure from the related lesson
  • Defining key concepts - ensure that you can accurately define the Gram stain method, its components, and gram-positive and -negative bacteria
  • Information recall - access the knowledge you've gained regarding the Gram stain method
  • Knowledge application - use your knowledge to answer questions about the Gram stain method and gram-positive and -negative bacteria

Additional Learning

To learn more about the Gram stain theory, review the accompanying lesson on these topics. This lesson, called The Gram Stain: Theory and Procedure, covers the following objectives:

  • Define the Gram stain method
  • Discuss the procedure for performing the Gram stain method of bacterial investigation
  • Define the nine-step process for performing the Gram stain