E. coli cells are rod-shaped, about 2 pm long and 0.8 um in diameter. E.coli has a protective cell envelope 10 nm thick.

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E Coli Cells Are Rod Shaped About 2 Pm Long And 0 8 Um In Diameter E Coli Has A Protective Cell Envelope 10 Nm Thick 1 (74.69 KiB) Viewed 25 times

E. coli cells are rod-shaped, about 2 pm long and 0.8 um in diameter. E.coli has a protective cell envelope 10 nm thick. What percentage of the total volume of the bacterium does the cell envelope occupy? 4.93 fraction of the envelope in the total volume: Incorrect E. coli is capable of growing and multiplying rapidly because it contains some 15,000 spherical ribosomes (diameter 18 nm), which carry out protein synthesis. What percentage of the cell volume do the ribosomes occupy? 4. percentage of the ribosomes in the total volume: Incorrect 1600000 The molecular weight of an E.coli DNA molecule is about 3.1 x 109 g/mol. The average molecular weight of a nucleotide paie is 660 g/mol, and cach nucleotide pair contributes 0.34 nm to the length of DNA. Calculate the length of an E. coli DNA molecule. DNA length: mm Incorrect Compare the length of the DNA molecule with the length of the bacteria. Now, consider the photomicrograph showing the single DNA molecule of the bacterium E. coli leaking out of a disrupted cell. How does the DNA molecule fit into the bacterial cell? The DNA must be packed into a nucleus. The DNA must be divided into smaller molecules. The DNA must be tightly coiled. The DNA must remain outside the cell. Incorrect