Characteristics of Viruses Quiz

Test your knowledge on viruses! Learn about viral structure, replication, and diseases. Take the Virology Quiz now!

Practice Learn Test

Which of the following is true about viruses?

They are composed of cells

They can reproduce on their own

They require a host to reproduce

They are larger than bacteria

What is the genetic material of a virus?

DNA only

RNA only

Either DNA or RNA

Protein

What is a bacteriophage?

A virus that infects bacteria

A type of antibiotic

A bacterial cell

A type of fungi

Which of the following is a viral disease in humans?

Malaria

Tuberculosis

Hepatitis B

Lyme disease

What is the shape of a typical virus particle?

Spherical

Cuboidal

Cylindrical

Irregular

Which of the following is NOT a characteristic of viruses?

They can infect all types of organisms

They are obligate intracellular parasites

They have a protein coat surrounding their genetic material

They have their own metabolism

What is the typical size range of viruses?

1-10 micrometers

10-100 micrometers

100-1000 nanometers

100-1000 micrometers

Which of the following is the correct definition of a virion?

A virus particle outside of a host cell

A virus particle inside of a host cell

A virus particle that has infected a host cell

A virus particle containing only RNA

Which of the following is NOT a method of viral transmission?

Airborne transmission

Vector-borne transmission

Photosynthesis

Direct contact

#10

Which of the following is the primary function of a viral envelope?

To protect the virus from the host immune system

To aid in the attachment of the virus to host cells

To provide structural support to the virus

To synthesize viral proteins

#11

Which viral structure is responsible for attaching to host cells?

Capsid

Nucleic acid

Envelope

Spike proteins

#12

What is meant by the term 'viral latency'?

The time it takes for a virus to infect a host cell

The period when a virus is actively replicating inside a host cell

The ability of a virus to remain dormant in a host cell without causing symptoms

The process of a virus escaping from a host cell

#13

What is a prion?

A type of bacteria

A type of virus

An infectious protein

A type of cellular organelle

#14

What is meant by the term 'viral tropism'?

The specific cells or tissues that a virus infects

The ability of a virus to mutate rapidly

The process of a virus entering a host cell

The time it takes for a virus to cause symptoms

#15

Which of the following is a characteristic feature of a viroid?

It contains both DNA and RNA

It is larger in size than a virus

It lacks a protein coat

It cannot infect plants