Virus

Which two steps of the lytic cycle are represented by the picture?

• Attachment and Injection

• Assembly and Lysis

• Synthesis and Assembly

• Attachment and Lysis

What happens in the lysogenic cycle? 

• Virus goes in and leaves the host cell

• Virus quickly kills the host cell

• Virus inject the nucleic acid into the host cell, and the nucleic acid integrates into the host cell DNA, and stay dormant for a long time

• Bacteria injects DNA into a host cell

During the lytic infection by a virus, the host cell is-

• destroyed

• copied

• passed on to the lysogenic cycle

• not affected

What part of the phage is the DNA?

• A

• B

• C

• D

Which viral life cycle allows viral genetic material to lay dormant while the host cell reproduces?

• lytic

• mitosis

• lysogenic

• S phase

Why do viruses have projections on the outside?

• To send signals to other viruses.

• To maintain their structure.

• To attach to the host cell.

• To reproduce.

Which of the following correctly describes viruses?

• non-living because they grow and develop

• living because they can use energy

• non-living because they cannot reproduce on their own

• living because they can maintain homeostasis

What is the primary function of a virus's protein coat?

• To store genetic material

• To protect the viral genetic material

• To help the virus reproduce

• To provide energy for the virus

Which of the following is a characteristic of viruses that distinguishes them from bacteria?

• Viruses have a cell wall

• Viruses can reproduce independently

• Viruses lack cellular structure

• Viruses have a nucleus

How do viruses typically enter a host cell?

• Through active transport

• By endocytosis

• By osmosis

• Through direct fusion with the cell membrane