Asked in Premeth Test 36 — Acellular Life

During the lytic cycle, how many phages are released from the infected host cell?

Correct answer: C. 100-200

  • A. 100-300
  • B. 100-500
  • C. 100-200
  • D. 100-400

Explanation

During the lytic cycle of bacteriophages, the host bacterial cell is eventually lysed (burst open), releasing numerous new phage particles into the surrounding environment. The actual number of phages produced per infected bacterium can vary, but as you mentioned, estimates often range from around 100 to 200 phages. This high burst size is a characteristic feature of the lytic cycle. The virus takes advantage of the host cell's machinery to produce a large number of progeny phages, ensuring the efficient spread of the viral infection to neighboring bacterial cells. The released phages can then go on to infect new host cells and continue the cycle.

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About Acellular Life

Viruses are acellular infectious particles whose capsid, nucleic acid and host-dependent replication distinguish them from living cells. HIV infection covers transmission, replication, effects on helper T cells, progression to AIDS, symptoms, prevention and treatment, while AIDS is the disease state caused by advanced immune-system damage rather than a separate virus.

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