Pathogens

Question 1

What is a pathogen?

Answer 1

A microorganism that causes disease.

Question 2

Give 4 examples of pathogens.

Answer 2

1) Virus
2) Bacteria
3) Fungi
4) Protist

Question 3

What 3 ways can pathogens spread?

Answer 3

Air
Touch
Blood

Question 4

Describe measles (4)

Answer 4

Type of pathogen: Virus

Spread: Liquid droplets in air or on surfaces.

Implications: sick children, red eyes, high temperature, rash.

Damage: little damage, MMR.

Question 5

Describe HIV (4)

Answer 5

Type of pathogen: Virus

Spread: unprotected sex, sharing needles, childbirth, infected blood.

Implications: attacks white blood cells, little immune response

Damage: AIDS

Question 6

Describe TMV (4)

Answer 6

Type of pathogen: Virus

Spread: direct contact

Implications: reduced level of clorophyll

Damage: lower yield

Question 7

Describe Salmonella (4)

Answer 7

Type of pathogen: Bacteria

Spread: infected foods

Implications: diarrhoea, stomach cramps, vomiting, fever.

Damage: dehydration

Question 8

Describe gonorrhoea (4)

Answer 8

Type of pathogen: bacteria

Spread: contact with sexual fluids

Implications: thick green smelly discharge from penis or vagina. Pain when urinating, bleeding.

Damage: blindness

Question 9

Describe rose black spot (4)

Answer 9

Type of pathogen: Fungus

Spread: spores

Implications: large areas of discolouration

Damage: loss of vigour

Question 10

Describe malaria (4)

Answer 10

Type of pathogen: Parasite

Spread: female mosquitoes

Implications: high fever, sweats + chills, headache, vomiting, chest pains, diarrhoea.

Damage: lethal