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Index >> Growth of Microorganism >> Chemical Composition of E.coli Cells

Chemical Composition of E.coli Cells

Chemical Composition of E.coli Cells

Component
Percent of Total cell Weight
Approximate number if molecules/cell
Number of Different Kinds
Water
70
4 x 1010
1
Inorganic Ions
1
2.5x 108
20
Carbohydrates and Precursors
3
2 x 108
200
Amino Acids and Precursors
0.4
3 x 107
100
Proteins
15
106
2000 - 3000
Nucleotides and Precursors
0.4
1.2x 107
200
Lipids and Precursors
2
2.5x 107
50
Other Small Molecules ( Breakdown products of food molecules, quinones,heme etc.)
0.2
1.5x 107
250
Nucleic Acids - DNA
1
1-4
1
Nucleic Acids - RNA
6
5x 105
1000


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