Micro Test #1

Front 1

__ is a microbial ageant useful for inhibiting the use of a gram positive bacterial cell wall.

Back 1

Penecillin

Front 2

In the 14th century ___ caused by Yersinia Pestis

Back 2

Blubonic Plague

Front 3

__ built the first compound microscope and plublished 'Micrographia' the first manuscript that illustrates objects under a microscope

Back 3

Robert Hooke

Front 4

__ is the father of microbiology, and first to describe how heat can kill microbes.

Back 4

Antoni van Leeuwenhoek

Front 5

___ is the criteria for establishing a causative link between an infectious agent and a disease. Has 4 different characteristics.

Back 5

Koch's Postulates

Front 6

Describe the 4 characteristics of Kochs Postulates

Back 6

1.)The microbe must be associated and must be present at infection site
2.)The microbe must be isolated from the lesions and grown as pure culture
3.)A culture of the microbe, when inoculated into a succebtable host, must reproduce the disease in experimental host.
4.)The microbe must be reisolated from hte experimentally infected host.

Front 7

What are some possible exceptions to Koch's Postulates?

Back 7

-You must be able to isolate organism and grows as a pure culture.
-When ethics is involed, you can infect humans for research

Front 8

__ ordered doctors to wash their hands with chlorine, an antiseptic ageant

Back 8

Ignaz Semmelwels

Front 9

Alexander Flemming discovered that ___ mold generated a substance that kills bacteria.

Back 9

Penicillium

Front 10

__ Fixation - "preserves" morphology but not internal structures

Back 10

Heat

Front 11

__ Fixation - used with larger more delicate organisms, penetrates cell to preserve internal structure.

Back 11

Chemical Fixation

Front 12

Basic stains have a ___ charged auxochrome.

Acidic stains have a ___ charged auxochrome.

Back 12

Positively

Negatively

Front 13

A ___ stain stains the cell walls.

A ___ stain stains the background (slide)

Back 13

Basic

Acidic

Front 14

Gram Positive Cells turn ___ in color.

Gram Negative Cells turn ___ in color.

Back 14

Purple

Pink

Front 15

__% of bacterial cell is water.
__% of bacterial cell is nucleic acid.
__% of bacterial cell is cell wall composed of peptoglycan

Back 15

70%
8%
1%

Front 16

Cell membranes have approximately equal parts of __ & __.

Back 16

Phospholipids
&
Protiens

Front 17

___ gives the membrane a consistent thinckness

Back 17

Phospholipid Bilayer

Front 18

Gram-__:has a think cell envelope b/c of S-layers and teichoc acids

Back 18

Positive

Front 19

Gram-__: has a think peptidoglycan layer and covered by an outer membrane.

Back 19

Negative

Front 20

Algea form cell walls of ___.
Fingi for cell walls of ___.
Diatoms for exoskeletons of ___.

Back 20

Cellulose
Chitin
Silicate