Importance Of bacteria Flashcards

1
Q

What is nitrogen fixation

A

Conversion of nitrogen gas into nitrogenous compounds by the action of some bacteria

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2
Q

What is the mean nitrogen compound used by plants

A

Nitrate

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3
Q

Name ammonifying bacteria

A

Bacillus vulgaris
Bacillus mycoid
Bacillus ramosus

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4
Q

What is denitrification

A

The process of conversion of nitrate into free nitrogen gas by the action of bacteria is called denitrification

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5
Q

Name some denitrification bacteria

A
  1. Theobacillus denitrificance
  2. Pseudomonas denitrificance
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6
Q

Name the bacteria which changes ammonia into nitrite

A

Nitrosomonas
Nitrosococcus

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7
Q

Name the bacteria which changes nitrite to nitrate

A

Nitrobacter

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8
Q

What is ammonification

A

Conversion of nitrogenous compounds obtained from proteins of dead plants and animals into ammonia by the action of bacteria

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9
Q

Biological nitrogen fixation is also called

A

Diazotrophy

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10
Q

Name for Symbiotic diaazitrophs

A

Rhizobium
Azorhizobium
Frankia
Azospirillum

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11
Q

Name a D Which shows lose symbiosis or superficial symbiosis

A

Azospirillum

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12
Q

Shows symbiosis with root surface of cereals

A

Azospirillum

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13
Q

Symbiotic relationship with root nodules of non-legume plants

A

Frankia

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14
Q

Symbiotic relationship with stem nodules of SESBANIA

A

Azorhizobium

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15
Q

Forms symbiotic association with root nodules of legume plants

A

Rhizobium

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16
Q

Which enzyme converts nitrogen into ammonia

A

Nitrogenase

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17
Q

Name some known legumes which form sym biotic relationship with Frankia

A

Alnus
Casuarina

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18
Q

Legumes

A

Pea
Sweet Clover
Clover bean
Broad bean
Alfalfa
Lentils

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19
Q

Name an actinomycetes which is D

A

Frankia

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20
Q

Name two bacteria present in soil in free form

A

Rhizobium
Frankia

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21
Q

Name the bacteria which converts milk into curd

A

Lactobacillus lactis
Streptococcus lactis

22
Q

Full form of LAB

A

Lactic acid producing bacteria

23
Q

Name the acid which converts ethanol into acetic acid

A

Acetobacter aceti

24
Q

Name the bacteria which are responsible for curing of tea

A

Micrococcus condiscence

25
Q

S N of tea

A

Camellia sinensis

26
Q

Name the bacteria which is responsible for curing of tobacco

A

Bacillus megatherium

27
Q

SN of tobacco

A

Nicotiana tobacum

28
Q

Name the bacteria responsible for retting of jute

A

Clostridium butryricum
Butyric Acid Bacteria

29
Q

Name the hydrocarbon eating bacteria

A

Pseudomonas putida

30
Q

Name the oil eating bacteria

A

Pseudomonas putida

31
Q

Name an artificial bacteria

A

Pseudomonas putida

32
Q

Name the super bug

A

Pseudomonas putida

33
Q

Name the bacteria mainly designed to prevent the disastrous after effects of oil spill

A

Pseudomonas putida

34
Q

Scientific name of jute

A

Colchorus olitorius / capsularis

35
Q

Bacteria used in genetic engineering in humans

A

E. coli

36
Q

Bacteria used for genetic engineering in plants

A

Agrobacterium tunefacium

37
Q

Cholera

A

Vibrio cholerae

38
Q

Typhoid

A

Salmonella typhi

39
Q

Tetanus

A

Clostridium tetani

40
Q

TB

A

Mycobacterium tubercularae

41
Q

Leprosy

A

Mycobacterium leprae

42
Q

Crown Gall disease

A

Agrobacterium tumefacium

43
Q

Citrus canker

A

Xanthomonas citri

44
Q

Bacterial leaf blight in rice

A

Xanthomonas oryzae

45
Q

Plant Pathogenic bacteria are mostly

A

Gram positive and non endospore forming

46
Q

First discovered antibiotic

A

Penicillin

47
Q

Penicillin was obtained from

A

A Fungi —- penicillium notatum

48
Q

Name an antibiotic obtained from bacteria

A

Streptomysin

49
Q

Name the first discovered bacterial antibiotic

A

Streptomycin

50
Q

Name the bacteria from which streptomycin was obtained

A

Streptomyces griseus ( An actinomycetes)