Growth and Nutrition of Microbes in Microbiology Microbial growth and nutrition are fundamental concepts in microbiology, focusing on how microorganisms grow, reproduce, and acquire nutrients from their environment. Understanding these processes is essential for research, industrial applications, and controlling microbial infections. Growth of Microbes 1. Definition Microbial growth refers to an increase in the number of cells, not the size of individual cells. Growth is influenced by environmental factors, nutrient