Disease

Question 1

Communicable disease definition

Answer 1

caused by pathogens (viruses, bacteria, fungi & Protoctista)
can be transmitted from one person to another.
They are infectious.

Question 2

Direct pathogen transmission examples

Answer 2

physical contact, ingestion, droplet infection

Question 3

Indirect pathogen transmission example

Answer 3

via vectors

Question 4

What are bacteria?

Answer 4

prokaryotes that can usually damage cells directly or release toxins

Question 5

What are protoctists?

Answer 5

unicellular eukaryotic organisms, which can produce sexually and asexually

Question 6

What are fungi?

Answer 6

eukaryotic organisms which cannot photosynthesis, therefore, are parasites

Question 7

What are viruses?

Answer 7

Viruses are acellular, non-living particles,
can only replicate inside living host cells where they hijack the host cells to
replicate and then burst the cell to be released.

Question 8

What are Autoimmune Diseases ?

Answer 8

when the immune system
mistakenly attacks its own antigens
eg In Arthritis, antibodies attack membranes around the joints