University:
Swansea University
Course:
PM134 | Microbiology
Academic year:

2023
Views:

201

Pages:

3
Author:

Sanjeev K

Microbial Growth (Module 2) Increase in cell no. We can define microbial pa Increase in cellular constituents growth. prokoayuts ↓ birasul Avg Size of bacteria <1 µm. Population growth is looked Multinucleated Increase Bacterial Growth Curve to check the Microbial growth. by cell division. population growth only studied through closed system Batch Process. Valid so bacterial growth o cwave is o log of viabe Celle. time. Bacterial cells can only only reach upto 109. (maximum) lan only reach up to 10 6 Protozoan cells algar Actino- 104-105 Lag Phare - There won't be immediate Increase in the growth. Adaptation period It try to adapt to the environment Culture may be, old. (in, ATP will be in depleted State Change in nutrients. Cofactors depletin. Ribosomer depletion change in environment CR, stored in deep frazy", anzyne machinery will not work as in Looment strate SALAD Cell may be trijured. I metabolita log Phace eg. vit, organic acids, aminoacids. Alcohol All organism multiply in a elightly varying tromontime iriterval. All the cell will be bath physiologically and biochemically acti. Multiply in a logarithmic fashion. (io, exponential form). Stationary Phase Balance blw cell growth and cell death. ie, why the growth Curve become horizontal. Nutrient Limitation. 02 depletion. Toxic metabolites. are Synthesized. Cis, strers B. there). Syntherized (metabolites) in the form of toxin, antibiotis, bacteriosin. Decline/death phase Nutrient Deprivation More and mon of toxic metabolite, acumulation. Death in a logarithmic fashion. ie, why the growth wove will not become Zero. Dead celle core still present there that is no Place. Lysis of cell taking