Biology Paper 1 Mock 2024

What is the lytic cycle?

• The process by which a virus replicates and destroys its host cell

• The process by which a virus integrates its DNA into the host cell's genome

• A cycle where a cell divides into two identical daughter cells

• A phase of photosynthesis in plants

Which of the following is the first step in the lytic cycle?

• The virus attaches to the host cell

• The virus injects its DNA into the host cell

• The host cell bursts and releases new viruses

• The viral DNA replicates inside the host cell

What happens to the host cell during the lytic cycle?

• It is destroyed when the virus bursts out

• It becomes immune to the virus

• It divides into more cells

• It incorporates viral DNA into its own genome

Which part of the virus is injected into the host cell during the lytic cycle?

• The viral DNA or RNA

• The entire virus

• The protein coat only

• The viral enzymes

What does the virus do after injecting its DNA into the host cell?

• It hijacks the host's machinery to replicate its own components

• It immediately destroys the host cell

• It becomes dormant

• It merges with the host cell’s DNA permanently

What is the end result of the lytic cycle?

• The host cell bursts, releasing new viruses

• The virus becomes part of the host’s genome

• The host cell recovers and continues to function normally

• The virus forms a dormant stage inside the host cell

Which of the following occurs just before the host cell bursts in the lytic cycle?

• Viral particles are assembled inside the host cell

• The viral DNA integrates into the host's chromosome

• The host cell starts to divide

• The virus becomes inactive

What term describes the bursting of the host cell during the lytic cycle?

• Lysis

• Apoptosis

• Cytokinesis

• Phagocytosis

In the lytic cycle, how does the virus replicate?

• By using the host cell’s machinery to produce viral components

• By directly replicating itself outside the host cell

• By fusing with the host’s DNA permanently

• By integrating into the host’s chromosomes

What distinguishes the lytic cycle from the lysogenic cycle?

• The lytic cycle leads to the immediate destruction of the host cell

• The lytic cycle involves viral DNA integration into the host genome

• The lytic cycle is a slower process

• The lytic cycle creates viral particles that remain dormant