infectious agents

Question 1

what is under susceptible hosts in COI

Answer 1

elderly
infants
immunocompromised
anyone

Question 2

what is under pathogens in COI

Answer 2

bacteria
fungi
virus
parasites

Question 3

what is under portal of entry in COI

Answer 3

mouth
nose
eyes
cuts

Question 4

what is under MOT in COI

Answer 4

direct contact
indirect contact
vectors

Question 5

what is under reservoir in COI

Answer 5

people
animal
food
water
soil

Question 6

COI

Answer 6

pathogens, reservoir, portal of exit, mode of transmission, portal of entry, susceptible hosts

Question 7

contains the
chromosomal DNA in bacteria

Answer 7

Nucleoid

Question 8

Cell wall of bacteria is peptidoglycan or murein layer composed of:

Answer 8

NAG (N-acetylglucosamine)
NAM (N-acetylmuramic acid)

Question 9

bacteria reproduce by

Answer 9

binary fission

Question 10

-amoeba
-Plasmodium sp.

Answer 10

protozoa

Question 11

Cell wall of fungi is ____ composed of polymers of glucose and mannose

Answer 11

CHITIN

Question 12

CHITIN is made up of

Answer 12

glucose and mannose

Question 13

filaments of fungi

Answer 13

HYPHAE

Question 14

Most viruses are in the range of

Answer 14

20–200 nm

Question 15

bacteria size generally ranges

Answer 15

0.2 to 5 um

Question 16

gram pos
lives on skin, can cause staph infection

Answer 16

S. aureus

Question 17

gram neg rod
lives in soil and water causes antibiotic resistant infxns

Answer 17

P. aeruginosa

Question 18

gram neg

lives in large intestine
causes food poisoning

Answer 18

E. coli

Question 19

found in fermented food

Answer 19

Lactobacillus acidophilus

Question 20

gram pos sphere
lives in mouth, tooth decay

Answer 20

Strep mutans

Question 21

rod shaped

Answer 21

Bacillus/bacilli

Question 22

Bacillus/bacilli examples

Answer 22

E. coli
Mycobacteria

Question 23

Spirochete example

Answer 23

Treponema spp.
Leptospira spp

Question 24

structure of enclosure unit which spores are formed

Answer 24

sporangium

Question 25

specialized fungal hypha as stalk of sporangium

Answer 25

sporangiophore

Question 26

long filamentous structure, form together as network called mycelium

Answer 26

hyphae

Question 27

anchor the fungi on substrate and absorb nutrients

Answer 27

rhizoid

Question 28

vegetative part of fungus consisting of hyphae

Answer 28

mycelium

Question 29

refers to fungi that have hyphae with multiple sectioned compartments by cross walls called septum

Answer 29

septate

Question 30

no cross walls fungi

Answer 30

coenocytic fungi

Question 31

flagella like appendages on bacterial cell wall but smaller in size

Answer 31

fimbriae and pili

Question 32

longer hair like microfibers on surface of grame negative bacteria

Answer 32

pili

Question 33

what has greater concentration in cytoplasm

Answer 33

inorganic ions

Question 34

substance of the cell

Answer 34

cytoplasm

Question 35

loops of dna, can be transferred from one bacteria to another, contains "special gene"

Answer 35

bacterial plasmids

Question 36

70s or 80s? contain 70-80 type of proteins

Answer 36

80s

Question 37

70s or 80s? prokaryotic

Answer 37

70s

Question 38

s unit

Answer 38

svedberg

Question 39

gold standard for bacterial identification

Answer 39

16s rRNA sequencing

Question 40

refers to transfer of genetic material

Answer 40

conjugation

Question 41

a structure produced by bacteria resistant to many environmental or induced factors.

Answer 41

bacterial spore

Question 42

occurs when nutrients, such as sources of carbon and nitrogen are depleted

Answer 42

sporulation

Question 43

transfer of DNA from one vacterium to another via viruses or phages

Answer 43

Transduction

Question 44

species that share common distinct surface structures or antigens capable of eliciting the same serologic response in humans

Answer 44

serotype classification

Question 45

species that share common observable characteristics or traits attributed by genetic and evnvrionmental influence such as morphological, biochemical, developmental, and physiological properties

Answer 45

phenotype classification

Question 46

groups of organisms that cause infectioys diseases

Answer 46

infectious agents: bacteria protozoa virus fungi