Microbial classification

Question 1

4 general classes of microorgs.

Answer 1

1. bacteria
2. virus
3. fungi
4. parasites

Question 2

what can be seen with what

Answer 2

light microscope for everything but viruses, some fungi and parasites with naked eye

Question 3

features of a bacteria

Answer 3

• single celled
• prokaryote
• strong wall of proteoglycan
• no membrane bound organelles or nucleus

Question 4

3 basic divisions of bact

Answer 4

1. gram stain
2. aerobic/anaerobic - tolerance of O2
3. shape

Question 5

features of pos and neg gram stain

Answer 5

pos - has thick cell wall

neg - thin call and extra layer of membrane

Question 6

2 basic shapes of bact.

Answer 6

1. cocci

2. bacilli - rods

Question 7

2 types of cocci

Answer 7

1. chains

2. clusters

Question 8

4 types of aerobes

Answer 8

1. strict aerobes - depend on aerobic resp
2. facultative aerobes - can use both
3. mircoaerophilic - depend on aerobic resp., but killed by too much O2
4. aerotolerant - uses anaerobic resp, but can tolerate O2

Question 9

one type of anaerobe

Answer 9

strict - uses anaerobic resp and killed by O2

Question 10

4 types of atypical bact

Answer 10

1. intracellular
2. lack rigid cell wall
3. acid-fast
4. spirochetes

Question 11

3 Gram+ O2 Cocci

Answer 11

1. staphylococcus
2. streptococcus
3. enterococcus

Question 12

2 Gram+ O2 bacilli

Answer 12

1. cornybacterium

2. bacillus

Question 13

1 Gram+ anO2 bacilli

Answer 13

clostridium

Question 14

2 Gram- O2 Cocci

Answer 14

1. neisseria

2. haemophilius

Question 15

1 gram- O2 bacilla

Answer 15

E coli

Question 16

1 gram-, anO2, bacilli

Answer 16

bacteroides

Question 17

def. virus

Answer 17

acellular DNA surrounded by a protein coat (capsid)

Question 18

main division of viruses

Answer 18

DAN vs. RNA

Question 19

subdiv. of viruses

Answer 19

1. single/double stranded
2. envelope
3. capsid shape

Question 20

2 DNA viruses

Answer 20

1. Hep B

2. Herpes

Question 21

5 RNA viruses

Answer 21

1. Hep ACE
2. Flu
3. HIV
4. Rotavirus
5. Norovirus

Question 22

def. fungi

Answer 22

eukaryotic uni and multicellular org with walls made of chitin and produce sexually or asexually

Question 23

2 main classes of fungus

Answer 23

1. yeast

2. filamentous

Question 24

def. parasites

Answer 24

eukaryotic uni-multucellular orgs that live within another org,

Question 25

2 main classes of parasites

Answer 25

1. protozoa | 2. helminths