Microbiology overview

Question 1

Define normal flora

Answer 1

The entire bacterial life of a region of the body

Question 2

Name a species of bacteria on the skin

Answer 2

Staphylococcus

Question 3

Name a species of bacteria in the nose or mouth

Answer 3

Streptococcus

Question 4

Name a species of bacteria in the GI tract

Answer 4

E-coli ( Escherichia coli)

Question 5

What is the colon ( part of the body)

Answer 5

Large intestine

Question 6

Why is normal flora important ? (3)

Answer 6

Protection from pathogen colonisation(space and metabolites)
Development of immune function
Nutritional capacity

Question 7

What is Sinusits

symptoms

Answer 7

this is where the sinuses behind the cheekbone and forehead become swollen usually due to infection.

Symptoms of pain, headache and runny nose

Question 8

70s (bacteria)

Answer 8

Type of ribosome

Question 9

bacterial cell wall

Answer 9

peptidoglycan

Question 10

Where is normal flora densely populated?

Answer 10

mouth
large intestine
female reproductive tract

Question 11

Where is normal flora moderately populated?

Answer 11

skin-dry
stomach -acid
bladder

Question 12

Where is normal flora vastly populated?

Answer 12

blood, tissues, joint fluids and CSF

Question 13

what are cocci

Answer 13

spheres

Question 14

bacilli

Answer 14

rods

Question 15

What the third shape of bacteria

Answer 15

spirals

Question 16

Streptococcus spp. stains purple and spherical

Answer 16

Gram postive cocci

Question 17

Neisseria spp. stains pink and round

Answer 17

Gram negative cocci

Question 18

clostridium spp. stains purple and has a long shape

Answer 18

Gram positive rods

Question 19

Bacteroises , Escherida stains pink and is a bacci

Answer 19

Gram negative rods

Question 20

Gram positive have a thick or thin peptidoglycan layer

Answer 20

Thick

Question 21

Describe the quick process of gram staining

Answer 21

Fixation 
Crystal violet sticks both 
iodine treatment 
decolourization by adding alcohol 
colour stain such as sarfarin

Question 22

What are the two morphological forms of fungal structures?

Answer 22

Yeast which is Smoot e.g. candida

Mould - mycelial growth e.g. Aspergillus

Question 23

How big are viruses

Answer 23

0.2micrometres

Question 24

How are protozoa classified

Answer 24

By the way they move- phagocytosis, flagella, excreted and picked up by host

Question 25

How are metazoa classified?

Answer 25

By their shape, nematodes, cestodes and trematodes