Bacteria & Viruses 6Th Grade

Front 1

virus

Back 1

a chromosome-like part surrounded by a protein coat.

Front 2

parasite

Back 2

an organism that lives in or in another living thing and gets food from it.

Front 3

fission

Back 3

the process of one organism dividing into two organisms

Front 4

antibiotic

Back 4

chemical substances that kill or slow the growth of bacteria

Front 5

pasteurization

Back 5

the process of heating milk to kill harmful bacteria

Front 6

blue-green bacteria

Back 6

small, one-celled monerans that contain chlorophyll and can make their own food

Front 7

colony

Back 7

a group of similar cells growing next to each other that do not depend on each other.

Front 8

the human body's major defense against diseases

Back 8

the immune system

Front 9

TRUE / FALSE
Viruses reproduce by means of 'fission'.

Back 9

false?

Front 10

pasteurization

Back 10

The process of eliminating (killing) the harmful bacteria in milk by using heat to kill bacteria. Process was invented by Louis Pasteur, a Frenchman.

Front 11

T/F Pasteurization is a heating process designed to kill bacteria in milk. It was created by Louis Pasteur

Back 11

TRUE

Front 12

a bacteria

Back 12

Monerans that feed on dead organic matter or on lliving things.

Front 13

a virus

Back 13

A tiny fragment of genetic material -- either DNA or RNA -- which is wrapped in a capsule of protein.

Front 14

communicable disease

Back 14

a disease in which the disease-causing organism is passed from one host to another host.

Front 15

a host

Back 15

a living object that provides food and shelter for another living object. Think of a host and a guest. If you come to my house, I am your 'host'; you are my guest.

Front 16

a toxin

Back 16

a toxin is a chemical poison that is harmful to the body.

Front 17

antibodies

Back 17

proteins made by bacteria which can attach to other bacteria or to viruses and destroy them

Front 18

immune system

Back 18

the body's main line of defense against infection; the immune system includes the important 'white' blood cells

Front 19

blue-green bacteria

Back 19

monerans that contain chlorophyll

Front 20

antibodies

Back 20

proteins made by bacteria which can attach to other bacteria or to viruses and destroy them

Front 21

immune system

Back 21

the body's main line of defense against infection; the immune system includes the important 'white' blood cells

Front 22

blue-green bacteria

Back 22

monerans that contain chlorophyll

Front 23

T/F Scientists classify bacteria by looking at shape.

Back 23

TRUE

Front 24

What is Sterilization?

Back 24

A process that makes it impossible for a bacterial organism to reproduce itself. Usually by removing the food that a bacteria is able to eat.

Front 25

How are bacteria different from blue-green bacteria?

Back 25

'Bacteria' refers to monerans that eat dead or living organic material. Blue-green bacteria produce their own food by using photosynthesis.

Front 26

A small piece of genetic material (a DNA or RNA molecule) that uses a host cell to reproduce itself is called a ________.

Back 26

virus

Front 27

Viruses (always, sometimes, never) need a host cell to reproduce itself.

Back 27

ALWAYS

Front 28

a microbe

Back 28

any small living organism

Front 29

What are vaccines and what are they made from?

Back 29

Vaccines cause the body to MAKE ANTIBODIES. HOW? Well, Vaccines are made with dead or weakened forms of the same bacteria or viruses that cause the disease. Having the weakened or dead microbes in your blood provides protection for when your body meets healthy, disease-causing bacteria or viruses.

Front 30

Is there a vaccine for every disease?

Back 30

No, some diseases have no effective vaccine. For example, there is no vaccine for the AIDS virus, nor for the bronchitis virus, nor for the leprosy bacterium, or for the tuberculosis bacterium.

Front 31

antibodies

Back 31

These are protein substances that attach to bacterial cells or to viruses and destroy them.

Front 32

White blood cells

Back 32

These healthy blood cells are the most important weapon in the body's immune system. How? (1) They actually eat some bacteria, or (2) they may produce ANTIBODIES (protein compounds) which will attach to bacteria and virus and kill them.

Front 33

How are bacteria classified?

Back 33

They are classified by SHAPE.

Front 34

antiBIOTIC

Back 34

These are substances that stop the growth and spread of bacteria. Fungi can be used as an antibiotic. Antibiotics CANNOT be used to fight viruses. They only fight bacteria.

Front 35

COMMUNICABLE DISEASE

Back 35

A disease that can be passed from one host organism to another host organism.

Front 36

sterilize

Back 36

to eliminate the opportunity for an organism to grow and reproduce offspring.

Front 37

Why is heart disease NOT a 'communicable disease'?

Back 37

Heart disease is not caused by a living organism. Heart disease is caused by unhealthy eating choices. No living organism is hosted in the heart that will cause toxins to destroy the heart. Heart disease is a weakening of the ability of the heart to pump blood.