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Bio Tech - Virus

Bio Tech - Virus

Assessment

Presentation

•

Science

•

8th Grade

•

Practice Problem

•

Hard

Created by

Neil Campos

FREE Resource

33 Slides • 28 Questions

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Multiple Choice

Who concluded in 1935 that TMV (Tobacco Mosaic Virus) is a chemical rather than an organism?

1

Louis Pasteur

2

Wendell Stanley

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Edward Jenner

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Alexander Fleming

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Multiple Choice

What is the main difference between viruses and bacteria in terms of their ability to exhibit life characteristics?

1

Viruses can only exhibit life characteristics inside their host cells, while bacteria can do so independently.

2

Bacteria can only exhibit life characteristics inside their host cells, while viruses can do so independently.

3

Both viruses and bacteria can only exhibit life characteristics inside their host cells.

4

Neither viruses nor bacteria can exhibit life characteristics.

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Multiple Choice

The protein subunit of a viral capsid

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capsid

2

nucleocapsid

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capsomere

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peplomers

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Multiple Choice

Projecting spikes on the surface of a viral envelope

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capsid

2

nucleocapsid

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capsomere

4

peplomers

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Multiple Select

Which of the following are components of the viral envelope?

1

Proteins

2

Lipids

3

Glycoproteins

4

Capsomeres

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Multiple Choice

A protein shell that surrounds and protects the nucleic acid.

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capsid

2

nucleocapsid

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capsomere

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peplomers

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Multiple Choice

Based on the diagram, which structure is present in both naked and enveloped viruses?

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Capsid

2

Envelope

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Peplomers

4

Glycoproteins

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Fill in the Blank

A single virus particle that has reached full infectivity outside the cell is called a ___.

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Multiple Choice

Which enzyme do retroviruses use to copy their RNA into the DNA of a host cell?

1

Reverse transcriptase

2

DNA polymerase

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RNA polymerase

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Ligase

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Multiple Choice

Which of the following best describes an icosahedral viral shape?

1

A capsid with a central cavity or hollow tube made by proteins

2

A structure that appears spherical and is made up of equilateral triangles

3

A polyhedron capsid attached to a helical tail

4

A structure surrounded by a lipid bilayer membrane

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Multiple Choice

Which of the following is not a characteristics of viral shapes?

1

Helical viruses have a central cavity or hollow tube made by proteins.

2

Icosahedral viruses appear spherical and are made up of equilateral triangles.

3

Envelope viruses have only a helical structure.

4

Complex viruses have a polyhedron capsid attached to a helical tail.

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Multiple Choice

Virus that attacks bacteria

1

zoophaginae

2

retroviridae

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bacteriophage

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phytopaginae

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Fill in the Blank

The viral group that attacks plants is called ___.

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Multiple Choice

RNA containing virus

1

zoophaginae

2

retroviridae

3

bacteriophage

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phytopaginae

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Multiple Choice

Why has the life cycle of bacteriophages been a good model for understanding how viruses affect the cells they infect?

1

Because bacteriophages only infect prokaryotic cells

2

Because similar processes are observed in eukaryotic viruses

3

Because bacteriophages do not cause cell death

4

Because bacteriophages are not viruses

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Multiple Choice

Which of the following is NOT a stage in the viral replication cycle?

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Adsorption

2

Penetration

3

Translation

4

Maturation

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Multiple Choice

Which of the following statements about virulent and temperate phages is correct?

1

Virulent phages integrate into the host genome and remain dormant

2

Temperate phages always cause immediate cell lysis

3

Virulent phages typically lead to cell death through lysis

4

Temperate phages cannot replicate with the cell genome

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Multiple Select

Select all features that are characteristic of the lytic cycle of viral infection.

1

Viral DNA integrates into the host genome and remains dormant

2

The virus replicates and produces progeny phages

3

Symptoms of viral infection are present

4

The host cell survives and continues to divide

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Fill in the Blank

Phages that replicate using both lytic and lysogenic cycles are known as ___ phages.

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Multiple Select

Which of the following are characteristics of the lysogenic cycle?

1

Viral DNA merges with cell DNA and does not destroy the cell.

2

The virus does not produce progeny.

3

There are symptoms of viral infection.

4

Temperate viral replication takes place.

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Multiple Choice

Which of the following statements best describes the lysogenic cycle of viruses?

1

The viral DNA integrates into the host DNA and may remain dormant.

2

The viral DNA immediately destroys the host cell.

3

The virus produces symptoms right away.

4

The virus cannot integrate with host DNA.

46

Multiple Choice

What is the main difference between the lytic and lysogenic cycles of viral replication?

1

Lytic cycle destroys the host cell, lysogenic cycle does not.

2

Lysogenic cycle produces new viruses immediately.

3

Lytic cycle integrates viral DNA into host DNA.

4

Lysogenic cycle always causes symptoms.

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Multiple Choice

Why do some viruses only infect specific types of cells?

1

Due to the origin of the virus and compatibility with host cell genes.

2

Because all viruses infect all cell types.

3

Because viruses are visible under a microscope.

4

Because viruses are always harmful to animals.

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Multiple Choice

Contains nucleic acid but do not have proteins

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progeny

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virion

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prion

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viroid

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Multiple Choice

Mature virus is called ____

1

progeny

2

virion

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prion

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viroid

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Multiple Choice

Contain protein but do not have nucleic acid

1

progeny

2

virion

3

prion

4

viroid

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Multiple Choice

What did Wendell Stanley conclude about TMV in 1935?

1

That TMV is a living organism

2

That TMV is a chemical rather than an organism

3

That TMV is composed of DNA and protein

4

That TMV can infect only animals

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Multiple Choice

Vaccines that are active viruses that have been cultivated under condition that disable their virulent properties

1

virulent

2

inactivated

3

attenuated

4

temperate

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