Pathogens And Diseases

Question 1

Examples of pathogens?

Answer 1

1. Bacteria
2. viruses
3. fungi
4. protits or protoctists

Question 2

Bacteria

Answer 2

Bacteria are small, single-celled organisms that reproduce very rapidly by binary fission

Question 3

Is bacteria good for us?

Answer 3

Some are harmless or actually good for us, but others release harmful toxins that damage our cells

Question 4

Salmonella

Answer 4

Sallmonella is found in some foods, such as chicken, which can cause food poisoning

Question 5

Gonorrhoea

Answer 5

Gonorrhoea is a sexually transmitted bacteria which can cause infertility

Question 6

How are viruses reproduced?

Answer 6

Viruses are even smaller than bacteria and actually reproduce by entering our cells and taking them over. This often damages or destroys the cell in the process

Question 7

There are not many_______for viral infections.

Answer 7

Treatments

Question 8

Antibiotics do not destroy viruses, as virus reproduce ______ _____, so the drug cannot reach them

Answer 8

Inside cells

Question 9

To get rid of the virus, the cell has to be killed

A few antiviral drugs do exist, which work by preventing the_______of the virus in the body.

Answer 9

Spread

Question 10

Most fungal infections are caused by pathogenic species of______.

Answer 10

Yeast

Question 11

Examples of fungal diseases

Answer 11

1. Athletes foot

2. Ring worm

Question 12

Pathogens

Answer 12

A pathogen is a microorganism that causes disease

Question 13

_________ is caused by a protist called Plasmodium

It infects ___ ___ ___, causing them to burst

Answer 13

Malaria

Red blood cells

Question 14

Plasmodium is carried in the saliva of certain species of______.

Answer 14

Mosquitos

Question 15

This mosquito is called the_____, as it carries the pathogen from person to person

Answer 15

Vector

Question 16

Direct contact

Answer 16

skin to skin transfer occurs in diseases like impetigo and some sexually transmitted diseases

Question 17

Droplet infection

Answer 17

tiny drops of liquid containing pathogens are expelled when you cough, sneeze or just talk. They can then be breathed in by others who can catch the disease

Question 18

Contaminated food and drink

Answer 18

uncooked food or water contaminated with sewage can transfer pathogens like salmonella or cholera.(pollution). Pathogens have to spread before you get well

Question 19

Through a break in the skin

Answer 19

the skin is the largest organ in the body and one of its main functions is to act as a barrier to prevent pathogens from entering the body