Lec 1 - Normal Human Microbiota

Question 1

The population of microbial symbionts that inhabit the skin and mucous membranes of healthy and normal humans

Answer 1

Normal Human Microbiota

Question 2

Flora changes depending on the age of the patient, environment and number of host

Answer 2

False (Type of Host)

Question 3

Collective term for the genome of microbial symbionts

Answer 3

Microbiome

Question 4

All are true regarding the function of normal human microbiota except.

A. Secondary defense against microbial pathogens

B. Assists in digestion

C. Plays a role in toxin degradation

D. Contributes to the maturation of the immune system

Answer 4

A (Primary defense)

Question 5

Fixed types of microorganisms that are found in a certain area at a certain age

Answer 5

Resident Microbiota

Question 6

True or False.

Physiological factors that affect the resident flora are temperature, moisture, nutrients and inhibitory substances.

Answer 6

True

Question 7

Microorganisms that are derived from the environment and temporarily inhabits the body.

Answer 7

Transient Microbiota

Question 8

Launched by the national institutes of health in 2007, whose goal is to understand the range of human genetic and physiologic diversity.

Answer 8

Human microbiome project

Question 9

These type of bacteria has the highest topographical distribution on the auxiliary vault, antecubital fossa, interdigital web space and hypothenar palm.

Answer 9

Proteobacteria

Question 10

These type of bacteria has the highest topographical distribution on the inguinal crease and the umbilicus

Answer 10

Corynebrcteriaceae

Question 11

Propionbacteriaceae has the highest topographical distribution in which skin site.

A. Back
B. External auditory canal.
C. Manubrium
D. Afar Crease

Answer 11

Back

Question 12

One partner benefits and the other is unaffected.

Answer 12

Commensalism

Question 13

Mutually beneficial relationship between two organisms

Answer 13

Symbiosis

Question 14

One organism derives benefit at the expense of another

Answer 14

Parasitism

Question 15

A microorganism capable of infecting or parasitizing “Normal individuals”

Answer 15

Pathogen

Question 16

Organisms that invade when unrestricted by the environment

Answer 16

Opportunist

Question 17

Inhibition or suppression of growth of pathogens by the normal microbiota

Answer 17

Bacterial interference

Question 18

Some degree of bacteremia during dental extraction

Answer 18

Transient Bacteremia

Question 19

Sepsis or infective endocarditis

Answer 19

Continuous Bacteremia

Question 20

Common location of transient microorganisms due to frequent contact with the environment

Answer 20

Skin

Question 21

They continuously sample the microbiota colonizing the skin surface through pattern recognition receptors

Answer 21

Keratinocytes

Question 22

Co-infection by two or more agents

Answer 22

Synergistic Infections

Question 23

Microbial growth in this region is controlled by the flow of _____ which contain antibacterial lysozyme.

Answer the blank and the question.

Answer 23

Blank - Tears

Question - Eyes