what process causes the number of cells in an organism to increase
Chapter 6: Microbial Growth. Microbial Growth: 4Refers to an increase in cell number, not in. cell size. 4Bacteria grow and divide by binaryfission, a rapid and relatively simple process. Requirements for Growth. Physical Requirements. 2.pH: 4Most bacteria prefer neutral pH (6.5 -7.5). 4Molds and yeastgrow in wider pH range, but. prefer pH between 5 and 6. 4Acidity inhibits most microbial growth and is used. frequently for food preservation (e.g.: pickling).