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Microbiology · Chapter 3

Inside the Bacterial Cell

A bacterium runs its whole life inside one open room. There is no nucleus and there are no organelles. Build the cell one part at a time. Then start its protein factory, add a drug, and watch what happens to growth.

An empty cellparts appear as you add them

A bacterial cell, built part by part
Tap a part in the cell, or a part in the list.

The protein factorylive model

Growth over one hour at the current settings
20k
100%
Add a ribosome drug
0%
Working ribosomes
20k
Proteins per sec
1000
Doubling time
20 min
Cells after 1 h
8

The bacterial celladd a part to begin
●Holds its contents
●Runs its chemistry
●Keeps its plan
●Builds proteins
Parts added 0 of 5
Five parts to knowEven the plainest bacterium has a membrane holding it together and a watery cytoplasm inside. Its DNA gathers in the nucleoid. Its ribosomes build proteins. Many cells carry spare DNA rings called plasmids. Start with any one.