Section outline

  • Agar plate

    Microbial growth refers to an increase in the number of microorganisms within a population over time. This chapter examines how microbes reproduce, particularly through binary fission, and how populations change during the different phases of the microbial growth curve. It also explores how environmental factors such as temperature, pH, oxygen availability, and nutrient conditions influence microbial growth. Understanding microbial growth is essential for interpreting laboratory results, predicting infection progression, and applying microbiological principles in clinical and environmental settings.

    Image: A glass Petri dish with culture. Source: "Antonio e Biagio e Cesare Arrigo Petri dish" by PescediBabele is licensed CC BY-SA 4.0



    Upon completion of this module, you will be able to:

    1. Describe the process and phases of microbial growth in populations. (C.O. 3)
    2. Explain mechanisms of microbial reproduction such as binary fission. (C.O. 1)
    3. Evaluate how environmental factors (e.g., oxygen, pH, temperature) influence microbial growth. (C.O. 4)
    4. Apply growth concepts to practical and clinical scenarios (e.g., infection progression, laboratory culturing). (C.O. 5)
    5. Communicate scientific explanations of growth phenomena using appropriate terminology. (C.O. 1)

    To achieve these objectives: 

    [Edit these items to match your resources and activities.]

    1. Read the Module 7 Introduction 
    2. Read Chapter 7 in Medical Microbiology for Nursing and Allied Health: A Louisiana Perspective
    3. Complete the Discussion Board, the practice quiz, the graded quiz, and the assignment.

    Module Pressbooks Resources and Activities

    You will find the following resources and activities in this module at the Pressbooks website. Click on the links below to access or complete each item.

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