Communicable disease

Question 1

What is a pathogen

Answer 1

A microorganism that causes infectious diseases

Question 2

How are diseases caused by bacteria?

Answer 2

Bacteria reproduces rapidly and asexually inside the body
They then release toxins which the damage cell tissue and make us feel ill

Question 3

How do viruses make us feel ill?

Answer 3

Viruses bind to a host cell
They then inject their genetic material into the cell.
The virus then reproduces inside the cell
When the cell can no longer contain all of the reproduced viral pathogens, this causes cell damage and the cell will rupture
This releases more viral pathogens to bind to different cells and the process repeats.

Question 4

How can we prevent the spread of pathogens?

Answer 4

1. Wash your hands after being sick
2. Isolate yourself
3. Do not share towels

Question 5

When is the only time when a virus can reproduce?

Answer 5

When in a host cell

Question 6

Howare diseases are spread

Answer 6

In the air

In contanminated food/ drink

In direct contanct

Question 7

How are diseases spreadin the air?

Answer 7

The droplets from sneezing and coughing can transfer from a diseased person and inhaled by a healthy person and infect them

Question 8

How are diseases spread in contaminated food and drink?

Answer 8

Bacteria can be found in undecooked food
food can be cooked with poor hygeine

Question 9

How are diseases spread with direct contact?

Answer 9

Through sexual intercourse,
skin to skin contact
fluids being transmitted by needles
Vectors