Characteristics of Selected Bacteria and Viruses
Name Bacterium or Virus Structure Reproduction Method Energy Source
Enterobacteria phage λ virus spherical head made up of a protein coat that contains linear DNA connected to a long, flexible tail infects a bacterial cell and uses the host cell's structures to make copies of itself no internal energy source needed
Escherichia coli bacterium rod-shaped cell with DNA contained within the cell's cytoplasm reproduces asexually through binary fission or conjugation (transfer of genetic material) between two bacteria breakdown of glucose to release energy
Streptococcus pyogenes bacterium spherical cell with DNA contained within cell's cytoplasm reproduces asexually through binary fission or conjugation (transfer of genetic material) between two bacteria breakdown of glucose to release energy
Influenza A virus virus spherical with a lipid membrane surrounding a protein lining that contains RNA infects animal cells and uses the host cell's structures to make copies of itself no internal energy source needed
While viruses are not living organisms, they do share some characteristics with living organisms such as bacteria. Which of the following describes a characteristic that viruses have in common with living organisms?
A.
Viruses contain genetic information in the form of DNA or RNA.
B.
Viruses are not made up of cells.
C.
Viruses cannot reproduce without infecting living cells.
D.
Viruses do not have any energy requirements.