Introduction

Question 1

1st person to actually see living microorganisms

He described live microorganisms that he observed in teeth scrapings rain water, and peppercorn i flusions

Answer 1

Antoni van leeuwenhoek 1674

Question 2

He showed a silkworm disease was caused by fungus.

Answer 2

Agostino bassi

Question 3

Pasteur believed that another silkworm disease was caused by:

Answer 3

A protozoan

Question 4

Advocated

Question 5

What are the microorganisms

Answer 5

They are organisms that are too small to be seen with the unaided eye.

Question 6

Germ refers to:

Answer 6

A rapidly growing cell

Question 7

What are the three domains of microorganisms:

Answer 7

Bacteria
Archaea
Eukarya

Question 8

He established the system of scientific nomenclature:

Answer 8

Carolus linnaeus (1735)

Question 9

Each organism has two names:

Answer 9

The genus and specfic epithet.

Question 10

The names are italicized or under lined:

Answer 10

The genus is capitalized and the specific epithet is lower case.

Question 11

Contributed best in microbiology
Sterilization
Hot air oven, Autoclav, anthrax vaccin, Rabies vaccin and built the pasteur institute

Answer 11

Louis pasteur

Question 12

A german scientist Formulated the bacteriological techniques, staining methods and discovered the mycobacterium and vibrio cholera

Answer 12

Robert koch (1843 -1910)

Question 13

Summary of diff b/w prokaryote and eukaryote

Answer 13

Page 10

Question 14

Prokaryotic cells are about …… times ……. than eukaryotic cells

Answer 14

10, smaller

Question 15

Reproduction of prokaryotic cells is by :

Answer 15

Binary fission

Question 16

What is the binary fission?

Answer 16

Simple division of one cell into two cells, after DNA replication and the formation of a separating membrane and cell wall.

Question 17

Bacteria take energy from:

Answer 17

Using organic chemicals, inroganic chemicals or photosythesis

Question 18

The structure of bacterial cell wall:

Answer 18

Macromolecular polymer known as peptidoglycan (murein)

Consisting of many polysaccharide chain linked together by small peptide (protein) chains

Question 19

The main constituent of most bacterial cell wall:

Answer 19

Peptidoglycan (murein)

Question 20

……… is only found in bacterial cell wall

Answer 20

Peptidoglycan

Question 21

Diff b/w gram+ and gram- cell wall:

Answer 21

The cell wall of gram+ have a thick layer of peptidoglycan combined with teichoic acid and lipoteichoic acid molecule.
The wall of gram- have a much thinner layer but this layer is covered with a complex layer of lipid macromolecule (capsule).

Question 22

What is the teichoic acid?

Answer 22

It is a polymer of ribitol or glycerol phosphate.

Question 23

The term growth in microorganisms refers to:

Answer 23

Change in total population,rather than increase in size or mass of individual organisms