Basis Of Classification Bacteria

Front 1

Coccus in pair

Back 1

Diplococcus

Front 2

Coccus in chain

Back 2

Streptococcus

Front 3

Coccus in bunch

Back 3

Staphylococcus

Front 4

Coccus in group of four

Back 4

Tetrad

Front 5

Coccus in cubical arrangement

Back 5

Sarcina

Front 6

Rod shaped bacteria

Back 6

Bacilli

Front 7

Intermediate between cocci and bacilli

Back 7

Coccobacilli

Front 8

Chain of rod shaped bacteria

Back 8

Streptobacilli

Front 9

Comma shaped bacteria

Back 9

Vibrio

Front 10

Chinese letter shaped bacteria

Back 10

Pallisade

Front 11

Spiral shaped bacteria

Back 11

Spirochaetes

Front 12

Cell wall lacking bacteria

Back 12

Mycoplasma

Front 13

Intracellular parasites that Resemble more closely to viruses than bacteria

Back 13

Rickettsiae and Chlamydiae

Front 14

Filamentous or branching structure

Back 14

Actinomycetes

Front 15

Spherical bacteria

Back 15

Coccus

Front 16

Elongated oblong

Back 16

Fusiform bacillus

Front 17

Wavy like

Back 17

Spirillum

Front 18

Coiled

Back 18

Spirochete

Front 19

bacteria which gain energy from light

Back 19

Phototrophs

Front 20

uses reduced inorganic compounds

Back 20

Photolithotrophs

Front 21

bacteria gain energy from chemical compounds

Back 21

Chemotrophs

Front 22

Gain energy from oxidation of chemical compound and reduces inorganic compound

Back 22

Chemolithotrophs

Front 23

Uses organic compound as source of electron

Back 23

Chemoorganotrophs

Front 24

Bacteria which uses carbon dioxide as sole source of carbon to prepare its own food

Back 24

Autotrophs

Front 25

Uses organic compound as carbon source, lack the ability to fix CO2

Back 25

Heterotrophs

Front 26

Most of the human pathogenic bacteria are heterotrophic in nature

Back 26

True

Front 27

Can grow at 0°C or below but the optimum temp growth is 15 below and max is 20

Back 27

Psychrophiles

Front 28

Bacteria that can grow best between 25 - 40°C but optimum temp for growth is 37°C

Back 28

Mesophiles

Front 29

Bacteria that can best grow above 45°C, contains saturated fatty acids in their cell membrane so their cell membrane does not become too fluid at high temp.

Back 29

Thermophiles

Front 30

Thermophiles capable of growing in mesophilic range

Back 30

Facultative thermophiles

Front 31

True thermophiles, are obligate thermophiles

Back 31

Stenothermophiles

Front 32

Bacteria that have optimum temp of growth above 80°C

Mostly acheobacteria

Back 32

Hyperthermophiles

Front 33

Bacteria that best grow at acidic ph

Back 33

ACIDOPHILES

Front 34

Bacteria that best grow at alkaline pH

Back 34

Alkaliphiles

Front 35

Bacteria that can best grow at neutral pH (6.5 - 7.5) most of the bacteria grow at this pH

Back 35

Neutriphiles

Front 36

Bacteria that require high concentration of NaCl for growth

Back 36

Halophiles

Front 37

Most of the bacteria do not require NaCl but can tolerate low concentration of NaCl

Back 37

Halotolerant

Front 38

Bacteria unable to grow in high salt concentrayion

Back 38

Non halophiles

Front 39

Bacteria that require oxygen and cannot grow in the absence of O2

Back 39

Obligate Aerobes

Front 40

Bacteria that do not require O2 but can use it If available

Back 40

Facultative anaerobes

Front 41

Bacteria do not require O2 for growth but can tolerate the presence of O2. Their growth not affected by o2

Back 41

Aero tolerant anaerobes

Hint 41

Lactobacillus

Front 42

Bacteria do not require O2 for growth but can tolerate low concentration of O2.

At atmospheric level of oxygen, growth of these bacteria is inhibited.

Have oxidative type of metabolism.

Back 42

Microaerophiles

Hint 42

Campylobacter

Front 43

Bacteria that can grow only in absence of oxygen

Fermentative type of metabolism

Back 43

Obligate anaerobes

Hint 43

Methanococcus

Front 44

Bacteria that require carbon dioxide for growth

CO2 loving organism

Most of the microaerophiles are this in nature.

Back 44

Capnophiles

Hint 44

Campylobacter

Front 45

Bacteria have single flagella in one end of cell

Back 45

Monotrichous

Hint 45

Vibrio cholera

Front 46

Bacteria having bundle of flagella in one end of cell

Back 46

Lophotrichous

Hint 46

Pseudomonas fluorescens

Front 47

Bacteria having single or cluster of flagella at both end of cell

Back 47

Amphitrichous

Hint 47

Aquaspirillum

Front 48

Bacteria having flagella all over the cell surface

Back 48

Peritrichous

Hint 48

E. Coli

Front 49

Bacteria without flagella

Back 49

Atrichous

Hint 49

Shigella

Front 50

Bacteria that produce spore during unfavorable condition

Back 50

Spore forming bacteria

Front 51

Spore produced within the bacterial cell

Back 51

Endospore forming bacteria

Hint 51

Bacillus

Front 52

Exo spore forming bacteria

Back 52

Spore produced outside the cell

Hint 52

Methylosinus

Front 53

Enterobacteriaceae

Back 53

Non spore forming bacteria

Hint 53

E. Coli

Front 54

Stain a purple color, ha e thicker peptidoglycan wall

Back 54

Gram positive

Front 55

Gram negative

Back 55

Dark pink, contains less peptidoglycan