Microbes And Diasese

Question 1

What are micro-organisms

Answer 1

A small organism which is not visable to the naked eye

Question 2

What are the three main types of micro-organisms

Answer 2

Bacteria, virus, fungi

Question 3

What are the key features of a bacteria

Answer 3

Lack of membrane bound organelles
Unicellular
Usually microscopic size

Question 4

What are the key features of a virus

Answer 4

They have a head region which contains all its genetic material
Only replicate by infecting a host cell
Can’t reproduce on their own

Question 5

What are the key features of a fungi

Answer 5

Grow as tubular filaments called hyphae
Disperse by spores blown by the wind
They are heterotrophic

Question 6

Rank the 3 micro organisms in order of size

Answer 6

Virus then bacteria then fungi is the largest

Question 7

What are 3 ways pathogens are transmitted

Answer 7

From body fluids
Cuts and scratches
Needle punctures

Question 8

Four features of a body’s first line of defence

Answer 8

Tears
Mucus
Cilia
Stomach acid

Question 9

How do white blood cells and antibodies protect us

Answer 9

They engulf pathogens and then digest them

Question 10

What is a vaccine

Answer 10

Dead or weakened part of a virus injected into the body

Body fights against it because it sees it as foreign triggers white blood cells

Question 11

How do vaccines prevent people from getting the disease

Answer 11

It helps create immunity to the disease.