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Viruses

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Questions and Answers

Which of the following statements about viruses is true?

Viruses are cells like bacteria, amoeba, fungi, and the like.

Viruses have organelles similar to bacteria and fungi.

Viruses are living organisms that can replicate like prokaryotes or eukaryotes.

Viruses contain genetic material in a protein capsule called a capsid. (correct)

What is the main target of Human Immunodeficiency virus (HIV)?

Bacteria

Fungi

Organelles

CD4 T lymphocytes (correct)

What happens when HIV infects a person?

The patient's body becomes resistant to other viruses.

The immune system of the patient becomes stronger.

HIV destroys the genetic material of the host cell and replaces it with its own genetic material.

HIV causes the patient's immune system to shut down. (correct)

What does the virus do to the host cell's genetic material?

The virus replaces the genetic material of the host cell with its own genetic material. Signup and view all the answers

What are the characteristics of viruses?

Viruses contain genetic material in a protein capsule called a capsid. Signup and view all the answers

Which of the following is NOT a characteristic of viruses?

Viruses can replicate like prokaryotes or eukaryotes Signup and view all the answers

What is the main target of Human Immunodeficiency virus (HIV)?

CD4 T lymphocytes Signup and view all the answers

What happens when HIV infects a person?

The immune system of the patient shuts down Signup and view all the answers

What is the term used to describe the process by which the virus replicates its genetic material instead of the host cell's DNA/RNA?

Hijacking Signup and view all the answers

Which of the following is NOT a living organism?

Viruses Signup and view all the answers

Study Notes

Viruses

Viruses are not living organisms
Characteristics of viruses include:
- They can only replicate inside host cells
- They are obligate intracellular parasites
- They can infect all types of life forms

Human Immunodeficiency Virus (HIV)

The main target of HIV is the immune system's CD4 cells (T cells)
When HIV infects a person, it destroys T cells, weakening the immune system
HIV infects host cells and takes over their genetic material
HIV replicates its own genetic material instead of the host cell's DNA/RNA, a process known as transcription

Viral Replication

The process of viral replication is called transcription
In transcription, the virus's genetic material is replicated instead of the host cell's DNA/RNA

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Description

Test your knowledge on viruses and their classification with this quiz. Learn about the unique characteristics of viruses and how they differ from other organisms.