MCQ Growth of Bacteria Part I

microbiology mcq questions answers

Bacterial culture:

A microbiological culture, or microbial culture, is a method of multiplying microbial organisms by letting them reproduce in a predetermined culture medium under controlled laboratory conditions.

Microbial cultures are foundational and basic diagnostic methods used as a research tool in molecular biology.

Bacterial growth curve

It has been determined that in a closed system or batch culture (no food added, no wastes removed) bacteria will grow in a predictable pattern, resulting in a growth curve composed of four distinct phases of growth: the lag phase, the exponential or log phase, the stationary phase, and the death or decline phase.

Bacterial growth is proliferation of bacterium into two daughter cells, in a process called binary fission. Providing no event occurs, the resulting daughter cells are genetically identical to the original cell. Hence, bacterial growth occurs.

Both daughter cells from the division do not necessarily survive synchronous growth of bacteria

A synchronous or synchronized culture is a microbiological culture or a cell culture that contains cells that are all in the same growth stage.

As numerous factors influence the cell cycle (some of them stochastic) normal cultures have cells in all stages of the cell cycle.

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