Viruses Furr - Assessment

1.

Multiple Choice

30 sec

1 pt

Viruses can reproduce only under which of the following conditions?

When they are outside a living organism

When they carry out respiration

When they grow or move

When they are inside a host cell

2.

Multiple Choice

30 sec

1 pt

What do viruses have in common with living cells? They both...

store genetic information in DNA and RNA

have chloroplasts

use glucose for cellular respiration

have endoplasmic reticulum

3.

Multiple Choice

30 sec

1 pt

Which of the following happens as part of both the lyltic cycle and the lysogenic cycle?

New viruses are made

The host cell dies

The entire virus infects the cell

The virus injects its nucleic acid into the host cell

4.

Multiple Choice

30 sec

1 pt

The lytic cycle involves several steps. Which of the following is the final step of the lytic cycle.

The host cell bursts

The virus injects its nucleic acid

New viruses begin to be made

The viral DNA becomes part of the host cell's DNA

5.

Multiple Choice

30 sec

1 pt

How do viruses reproduce?

They copy their own genetic material inside a protein coat.

They kill a cell and reproduce inside it

They invade a living cell and use the cell's functions to replicate their genetic material

They do not reproduce because they are not technically living things

6.

Multiple Choice

30 sec

1 pt

What is the capsid of a virus?

The disease it causes

The receptors to which it binds

Its genetic material

Its protein coat

7.

Multiple Choice

30 sec

1 pt

Which of the following occurs after a virus attaches to a host cell in the viral reproduction process?

The host cell dies

The virus dies

The virus inserts its genetic information into the host cell

copies of the virus are immediately released from the host

8.

Multiple Choice

30 sec

1 pt

A tomato plant in a greenhouse was found to be infected with tobacco mosaic virus. Which of the following best describes how the virus reproduced?

The virus made its own spores

The virus produced seeds in the tomatoes

The virus used the host plant's resources and machinery to reproduce

The virus immediately killed the host plant and was free to reproduce

9.

Multiple Choice

30 sec

1 pt

A virus has a very simple structure. Which of the following is part of the viral structure?

Organelles

Cell membrane

Host cell

Nucleic acid

10.

Multiple Choice

30 sec

1 pt

Individuals with HIV sometimes contract pneumonia infections that are rare in the rest of the population because people with HIV...

are unable to fight off these pneumonia-causing organisms

are more often exposed to these pneumonia-causing organisms

release pheromones that attract pneumonia-causing organisms

release substances that increase the strength of the pneumonia-causing organisms

11.

Multiple Choice

30 sec

1 pt

Viruses have structures that allow them to inject their genetic material directly into the DNA of a host cell. This benefits the virus in that...

the virus is able to transform into a host cell

mutations are introduced into the virus

the host cell is turned into a virus

the virus uses the host cell to replicate itself

12.

Multiple Choice

30 sec

1 pt

A variety of respiratory diseases in humans can be caused by adenoviruses. Which of the following describes the structure of an adenovirus?

A prokaryotic cell that is propelled by a flagellum

A nucleic acid core that is surrounded by a protein coat

A set of ribosomes that is held together by microtubules

a single cell that contains a plasma membrane and a circular chromosome

13.

Multiple Choice

30 sec

1 pt

Which of the following statements explains why viruses are able to reproduce only inside host cells instead of being able to reproduce on their own?

Viruses cannot function at temperatures higher than 98.6 degrees farenheit

Viruses lack spindle fibers that correctly align chromosomes for division

Viruses are to small to effectively make copies of themselves on their own

Viruses lack the cellular machinery needed to make copies of their genetic material

14.

Multiple Choice

30 sec

1 pt

Which of the following is the only characteristic shared by living cells and viruses?

The presence of carbohydrates

The ability to reproduce on their own

The presence of nucleic acid

A cell membrane

15.

Multiple Choice

30 sec

1 pt

What is the main function of the projections on the surface of a virus?

They aid in respiration

They help the virus grow

They help the virus invade its host

They help the virus digest food molecules

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