Intro to Infectious Diseases & Causitive Agents

Question 1

What are the 5 infectious agents of humans?

Answer 1

Prions, bacteria, viruses, fungi, parasites

Question 2

What are the 2 categories of fungi?

Answer 2

Yeasts (single cell) and moulds (filamentous)

Question 3

What are the 2 categories of parasites?

Answer 3

Protozoa (single cell) and metazoa (tissue differentiation)

Question 4

What are the essential components of bacteria?

Answer 4

cytoplasmic membrane, cytoplasmic matrix, ribosomes, genome, cell wall

Question 5

How many ‘core’ genes in the bacteria genome?

Answer 5

2000

Question 6

How many ‘accessory’ genes in the bacteria genome?

Answer 6

2000-4000

Question 7

How many genes in the bacteria ‘pan-genome’?

Answer 7

more than 20,000

Question 8

How do bacteria acquire new genes?

Answer 8

plasmids, transposons, integrons, bacteriophages, pathogenicity islands

Question 9

What colour are gram positive bacteria?

Answer 9

Blue

Question 10

What colour are gram negative bacteria?

Answer 10

Red