Bacteria Test 6

Total Questions:50 Total Time: 75 Min

Remaining:

 

Questions 1 of 50

Question:An organism lacking chlorophyll but able to carry on photosynthesis of organic matter has been found among which one of the following

Answers Choices:

Bacteria

Fungi

Viruses

Bacteriophages

Questions 2 of 50

Question:Bacteria were first discovered by

Answers Choices:

Robert Koch

L. Pasteur

Robert Hooke

A.V. Leeuwenhoek

Questions 3 of 50

Question:The site of respiration in bacteria is

Answers Choices:

Episome

Mesosome (cytoplasmic membrane)

Ribosome

Microsome

Questions 4 of 50

Question:Which of the following is a genetic vector

Answers Choices:

Phage

Plasmid

Mosquito

None of these

Questions 5 of 50

Question:Bacteria bearing flagella all over the body are called

Answers Choices:

Peritrichous

Atrichous

Monotrichous

Cephalotrichous

Questions 6 of 50

Question:The habitat of E. coli is

Answers Choices:

Water

Colon

Soil

Organic food

Questions 7 of 50

Question:Chlorobium vesicle is present in

Answers Choices:

Green bacteria

Purple bacteria

Colourless bacteria

None of the above

Questions 8 of 50

Question:Which of the following amino acid is present only in bacteria and BGA

Answers Choices:

Glutamic acid

Diaminopimetic acid

Glycine

Tyrosine

Questions 9 of 50

Question:Which of the following can be the use of micro-organisms

Answers Choices:

Preparation of food and food additives

Production of alcoholic beverages

Therapeutic compounds

All the above

Questions 10 of 50

Question:Mycobacterium has

Answers Choices:

Transient mycelium

Extensive mycelium

Both 1 and 2

None of the above

Questions 11 of 50

Question:Genophore term was coined by Hans Ris for

Answers Choices:

Genetic material of virus

Stack on which spore originated

Bacterial chromosome

Fungal chromosome

Questions 12 of 50

Question:The filament of Mastigocladus laminosus is

Answers Choices:

Unbranched

Branched

Short

None of the above

Questions 13 of 50

Question:Which of the following are extreme halophiles and thermophiles

Answers Choices:

Bacteria

Cyanobacteria

Archaebacteria

Fungi

Questions 14 of 50

Question:Infoldings of the plasma membrane of gram positive bacteria, gives rise to

Answers Choices:

Clathrin

Chondritin

Chondrioides

Chromatin

Questions 15 of 50

Question:Who classified bacteria under Schizomycetes

Answers Choices:

Nageli

Linnaeus

Leeuwenhoek

Sadashivan

Questions 16 of 50

Question:Plasmids occur in

Answers Choices:

Viruses

Bacteria

Chloroplasts

Chromosomes

Questions 17 of 50

Question:How many bacteria are produced in four hours if a bacterium divides once in half an hour

Answers Choices:

8

64

16

256

Questions 18 of 50

Question:The bacteria grown in the medium containing \({S^{35}}\) as a lone source of sulphur show its incorporation into

Answers Choices:

DNA

Protein

RNA

None of the above

Questions 19 of 50

Question:Bacteria reproduce sexually by

Answers Choices:

Endospores

Transformation

Conidia

Exospores

Questions 20 of 50

Question:Transfer of DNA from one bacteria to another by contact is known as

Answers Choices:

Conjugation

Transformation

Transduction

Transcription

Questions 21 of 50

Question:Clostridium is an example of

Answers Choices:

Obligate anerobic nitrogen fixing bacteria

Facultative nitrogen fixing bacteria

Non nitrogen fixing bacteria

Aerobic nitrogen fixing bacteria

Questions 22 of 50

Question:Retting of fibres is caused by

Answers Choices:

Bacillus

Clostridium

Nitrobacter

Rhizobium

Questions 23 of 50

Question:The decomposition of organic compounds in the presence of \({O_{\rm{2}}}\) without the development of odoriferous substance is

Answers Choices:

Nitrifixation

Decay

Denitrifixation

Nitrogen fixation

Questions 24 of 50

Question:The chemotherapeutic substance derived from living organism that has an inhibitory effect on parasitic organism is known as

Answers Choices:

Exotoxin

Bactericide

Antibody

Antibiotic

Questions 25 of 50

Question:Which of the following soil microorganism breaks down plant and animal protein into ammonia

Answers Choices:

Bacillus vulgaris

Nitrosomonas

Pseudomonas

None of the above

Questions 26 of 50

Question:The bacteria found in nodules of family leguminosae are

Answers Choices:

Rhizobium

Azotobacter

Nitrobacter

None of these

Questions 27 of 50

Question:Which of the following is bacterial disease

Answers Choices:

Measels

Small pox

Rabies

Tuberculosis

Questions 28 of 50

Question:Bordetella pertussis causes

Answers Choices:

Influenza

Pneumonia

Meningitis in young children

Whooping cough

Questions 29 of 50

Question:Cause of 'Mad Cow' disease of England

Answers Choices:

Virions

Mycoplasma

Scrapie Protein

Viral protein

Questions 30 of 50

Question:The disease 'pneumonia' is caused by

Answers Choices:

Virus

Cyanobacteria

Bacteria

Cold

Questions 31 of 50

Question:Which of the following is effective against mycoplasmal diseases

Answers Choices:

Vancomycin

Penicillin

Chloramphenicol

All the above

Questions 32 of 50

Question:Which of the following is called "Jockers of microbiological park"

Answers Choices:

Bacteria

Mycoplasma

Nostoc

None of these

Questions 33 of 50

Question:Doxycycline treatment cure

Answers Choices:

Common cold caused by virus

Polio caused by virus

Male sterility caused by mycoplasma

None of these

Questions 34 of 50

Question:Name Asterococcus mycoides has been given to mycoplasma by

Answers Choices:

Nocard and Roux

Nowak

Borrel et al

None of these

Questions 35 of 50

Question:Mycoplasma is related to

Answers Choices:

Algae

Bacteriophage

Virus

L-form bacteria

Questions 36 of 50

Question:Definite shape Mycoplasma are not sensitive to

Answers Choices:

Streptomycin

Penicillin

Erythromycin

Neomycin

Questions 37 of 50

Question:Why mycoplasma is pleomorphic

Answers Choices:

Due to absence of cell wall

Due to presence of three layered cell membrane

Due to the presence of sterol

None of these

Questions 38 of 50

Question:What is incorrect for mycoplasma

Answers Choices:

They are osmotically inactive

Show absence of cell wall

Are sensitive to modern antibiotics

Are obligate intracellular parasites

Questions 39 of 50

Question:Red sea phenomena due to

Answers Choices:

Red algae

Dinophyceae

Diatoms

Blue-green algae (Trichodesmium erythrium)

Questions 40 of 50

Question:Which of the following movement may be found in blue-green algae

Answers Choices:

Flagellar

Ciliary

Gliding

None of the above

Questions 41 of 50

Question:Which of the following important features are found in blue-green algae

Answers Choices:

Abundant secretion of pectin

Presence of phycocyanin - C as dominant pigment

No plastids

All the above

Questions 42 of 50

Question:The cells of cyanobacteria and bacteria exhibit similarity in having

Answers Choices:

Plastids

Nuclei (True)

Centrosome

DNA

Questions 43 of 50

Question:The name cyanobacteria refers to

Answers Choices:

Bacteria

Blue-green algae

Yeast

Fungi

Questions 44 of 50

Question:Myxoxanthophyll is found in

Answers Choices:

Bacteria

Cyanobacteria

Mycoplasma

None of these

Questions 45 of 50

Question:Nostoc is characteristic in having

Answers Choices:

Cellulose cell wall

Uniflagellated zoospores

Chlorophyll 'e'

Sexual reproduction

Questions 46 of 50

Question:Nostoc is a

Answers Choices:

Cyanobacteria

Beaded bacterium

Bacteriophage

Parasite

Questions 47 of 50

Question:In prokaryotes, the genetic material is

Answers Choices:

Linear DNA with histones

Circular DNA with histones

Linear DNA without histones

Circular DNA without histones

Questions 48 of 50

Question:Which of the following may cause water blooms

Answers Choices:

Bacteria

Mycoplasma

Virus

Blue-green algae

Questions 49 of 50

Question:Nitrogen fixation by Nostoc takes place in

Answers Choices:

Heterocysts

Vegetative cells

Akinetes

Hormogonia

Questions 50 of 50

Question:Cyanobacteria are

Answers Choices:

Mosses which attack bacteria

Bacteria which attack cyanophyceae

Autotrophic organism with phycocyanin

None of these