Umiejętności z tego działu sprawdzają 24 zadania wzorowane na arkuszach IB z lat 2024–2026. Dział pojawia się w 16 z 54 arkuszy w bazie.
Three claims are made about viruses. I. Every virus is enclosed by a lipid envelope. II. Viral particles carry a nucleic acid genome. III. Viruses lack the independent cellular metabolism required for living organisms. Which claims apply to all viruses? A. I…
Deduce which process is represented in this early stage of a bacteriophage lytic cycle.
State two processes supplied by a host cell that a virus requires during lytic reproduction.
Justify both a cellular origin of viruses and the possibility of several independent viral origins.
Identify the type of nucleic acid that makes up a coronavirus genome.
Explain two reasons, apart from a high mutation rate, why a viral population can evolve rapidly.
State the name of component K.
Identify the replication cycle illustrated and give a reason for your choice.
State the mode of existence shared by viruses.
Discuss evidence consistent with viruses having arisen on more than one occasion.
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