Pathogens Communicable Diseases 4.1.1

Question 1

A disease is…

Answer 1

A departure from good health or a malfunction of the body / mind. Symptoms can be physical, mental or social

Question 2

Communicable disease

Answer 2

A disease that can be spread between organisms

Question 3

Pathogen

Answer 3

A microorganism that causes disease by entering the body and causing symptoms

Question 4

Bacteria definition?

Answer 4

Prokaryotic (no membrane-bound organelles), reproduce rapidly, reproduce by binary fission, can damage cells, can produce toxins and other toxic products

Question 5

Bacteria examples?

Answer 5

Tuberculosis: animal, consumption
Meningitis: animal, inflammation of membranes around the brain
Ringrot: plants

Question 6

Virus description?

Answer 6

Bursts host cells to release new viruses, produce toxins, invade cells, hijack cellular machinery to reproduce, smaller than bacteria

Question 7

Virus examples?

Answer 7

HIV / AIDs, human;
influenza, human;
rhinovirus, animal, cold;
herpes, animals;
tobacco mosaic virus, plants

Question 8

Fungi description?

Answer 8

Hyphae that forms a web of mycelium, can live on skin / in vascular plant tissue

Question 9

Fungi examples?

Answer 9

Ringworm, human
Athlete’s foot, human
Black Sigatoka, affects bananas

Question 10

Protist description?

Answer 10

Protoctista, eukaryotic cells, enter host cells and feed on contents as they grow

Question 11

Protist examples?

Answer 11

Plasmodium, causes malaria in animals
Potato blight, causes blackness inside potatoes, inedible