Virus Quiz

Which of the following is not a cell but has the ability to reproduce within a living cell?

• A virus

• An alga

• A bacterium

• A yeast

Viral activity is represented in the diagram below. Invading the host cell allows the virus to -

• Obtain nutrients

• Increase its size

• Synthesize needed oxygen

• Reproduce

Tags

NGSS.HS-LS4-4

The structure of a virus is simpler than the structure of a cell. Typically, a virus is composed only of -

• Genetic material, a protein coat, and attachment proteins

• Transfer ribonucleic acid (tRNA) and enzymes

• A nucleus, a Golgi apparatus, and cytoplasm

• A cytoskeleton, chloroplasts, and a mitochondrion

Like cells, viruses contain-

• Genetic Material

• Mitochondria

• Vacuoles

• Chloroplasts

Why type of cycle is represented in the diagram?

• Lysogenic

• Mitosis

• Meiosis

• Lytic

Some viruses enter cells and, rather than destroy the cell, they integrate their DNA into the host cell’s chromosome, becoming a provirus. Every cell that replicates has a copy of the virus and can be activated at any time. This describes which type of viral cycle?

• Lytic

• Lysogenic

• Bacteriophage

• Retrovirus

A photograph of a virus is shown below. The projections on the surface of the virus allows the virus to?

• Most inside a host cell

• Control a host cell's DNA

• Attach to a host cell

• Signal other viruses to infect a host cell

17. During an infection some viruses remain inside cell but do not cause symptoms of disease. The graphic depicts the –

• Lytic cycle and the host cell is destroyed by rapidly reproducing viral part

• Lytic cycle and the viral nucleic acid inserts into the host cell chromosome

• Lysogenic cycle and the viral nucleic acid inserts into the host cell

• Lysogenic cycle and the viral nucleic acid inserts into the host cell

Three things are depicted below. Genetic material would best fit into which area?

• W

• X

• Y

• Z

Tags

NGSS.HS-LS1-1

NGSS.HS-LS3-1

Viruses are able to infect cells because they share a common genetic code and are to use host cell enzymes to carry out protein synthesis. There are some structures which are unique to viruses and not found in cells. These include:

• I only

• II only

• I and II only

• II and III only