Medical Quiz

Virus and Bacteria Quiz


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Bacteria aid many animals in digestion.

A. TRUE

B. FALSE


Which stage of the life cycle is Aids in?

A. Lytic

B. two

C. Lysogenic


What is the gel-like covering that bacteria have which makes many antibiotics ineffective?

A. Endospore

B. Cell Wall

C. Capsule


Bacteria use whip-like structures to move through liquids that are called

A. prions

B. cells

C. flagella


Which stage of the life cycle is HIV in?

A. Lysogenic

B. Lytic

C. one


What is the most important function of bacteria?

A. acting as decomposers

B. make people sick

C. make yogurt


Bacteria possess several pairs of chromosomes.

A. TRUE

B. FALSE


What is the most unique characteristic of bacteria?

A. Their shape

B. Their DNA

C. Their prokaryotic cells


A person who is HIV positive cannot spread the virus.

A. TRUE

B. FALSE


When a person has a cold sore ( fever blister) the herpes virus is in lytic cycle.

A. TRUE

B. FALSE


What do viruses use to attach to the host’s cell?

A. flagella

B. proteins

C. tail fibers


All bacteria have cell walls.

A. TRUE

B. FALSE


What do some bacteria produce that are capable of killing the host and are among the most toxic poisons known?

A. exotoxins

B. anitigens

C. endotoxins


What are the sticky string-like projections that bacteria use to cling to surfaces?

A. Pili

B. Tail Fibers

C. Flagella


When a viral DNA attaches to the host cell’s DNA it is called a

A. Provirus

B. Prion

C. Phage


What do bacteria use to reproduce?

A. Flagella

B. DNA

C. binary fission


In which stage in the life cycle is the virus reproducing?

A. Lysogenic

B. Binary Fission

C. Lytic


Anthrax is a deadly bacteria which is capable of surviving for decades in soil because it is able to form

A. Capsid

B. Endospores

C. Cell Walls


Viruses use their spikes or tail fibers to attach to phospholipids of the cell membrane.

A. TRUE

B. FALSE


Some bacteria have a gel-like covering called a _______which makes many antibiotics ineffective.

A. Capsule

B. Capsid

C. Endospore

D. Cell Wall


Viruses contain DNA or RNA but never both.

A. TRUE

B. FALSE


What are small circular pieces of DNA which can be exchanged between bacteria and give the bacteria different characteristics such as drug resistance?

A. Cell Wall

B. Plasmids

C. Capsid




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