Free Printable Virus

Worksheets

Virus

Total questions: 12

Worksheet time: 4mins

Name

Class

Date

Which of the following correctly describes viruses?

non-living because they grow and develop

living because they can use energy

non-living because they cannot reproduce on their own

living because they can maintain homeostasis

Which of the following best describes the overall structure of viruses?

An outer protein coat and nucleic acid within the core.

An outer carbohydrate coat and nucleic acid within the core.

A protein tail and carbohydrate tail fibers.

A carbohydrate tail and protein tail fibers.

HIV demonstrates that viral infections are harmful to host organisms because –

viruses digest nutrients for energy that would have been used by host cells

the proteins in viral capsids interfere with the enzymes that produce antibodies

host cells are damaged during the production of new virus particles

viruses produce harmful toxins that interfere with the cells energy conversions

What type of cell does HIV attack?

neurons (brain cells)

liver cells

stomach cells

Helper T cells (white blood cells)

What body system do all types of T cells (white blood cells) belong to?

Integumentary system

Immune system

Endocrine system

Circulatory system

What syndrome does HIV lead to?

accompanied infection dehydration syndrome

acute integumentary dignified syndrome

agility immune deterrent syndrome

acquired immune deficiency syndrome

What happens in the lysogenic cycle?

Virus goes in and leaves the host cell

Virus quickly kills the host cell

Virus inject the nucleic acid into the host cell, and the nucleic acid integrates into the host cell DNA, and stay dormant for a long time

Bacteria injects DNA into a host cell

Viruses are cells.

True

False

HIV is an example of which type of virus?

Lysogenic

Bacterial

Lytic

None of the above

10.

Sometimes viruses have an extra protective layer called the...

capsid

a fur coat

membrane envelope

cell membrane

11.

The reason that viruses are considered to be nonliving is because

They are not cellular

They cannot reproduce on their own

They cannot make proteins

all of the above

12.

Influenza infects a cell and causes it to lyse immediately. Which type of virus is influenza?