Download UNIT I - E

NEHRU ARTS AND SCIENCE COLLEGE
DEPARTMENT OF MICROBIOLOGY
QUESTION BANK
Class: I B.Sc., Microbiology with Nanotechnology
Batch: 2016-2019
Subject: Microbial Diversity
UNIT I
1. Microorganisms belonging to the same ___________ would be expected to have the most
common characteristics with each other.
a) Order
b) Species
c) Family
d) Genus
Answer: D
2. The Cavalier – Smith’s eight kingdom classification includes all of the following except
a) Fungi
b) Bacteria
c) Viruses
d) Algae
Answer: C
3. To which kingdom do the cyanobacteria belong?
a) Fungi
b) Eubacteria
c) Protista
d) Plantae
Answer: B
4. The five kingdom classification of organisms was proposed by
a) R.H Whittakar
b) John Ray
c) Cavalier – Smith
d) Haeckal
Answer: A
5. Basic Taxonomy unit is
a) Kingdom
b) Genus
c) Species
d) Order
Answer: C
6. A small group of individuals or organisms which resemble closely in structure as well as
function is called
a) Phylum
b) Family
c) Species
d) Genus
Answer: D
7. High G +C gram positive bacteria example
a) Corynebacteria
b) Enterococcus
c) Lactobacillus
d) Halobacterium
Answer: A
8. Why a bacterium is called a prokaryotic organism?
(a) A bacterium is a one-cell organism that does not have a distinct nucleus.
(b) A bacterium is a one-cell organism that has a distinct nucleus.
(c) A bacterium is a multicell organism that does not have a distinct nucleus.
(d) A bacterium is a multicell organism that has a distinct nucleus.
Answer: A
9. ____________ proposed the two kingdom classification
a) R.H Whittakar
b) Aristotle
c) Cavalier – Smith
d) Haeckal
Answer: B
10. Kingdom Monera comprises of
a) Prokaryotes
b) Eukaryotes
c) Fungi
d) Animalia
Answer: A
11. Microorganisms were classified based on nucleic acid into ____________& _________
Answer: Prokaryotic & Eukaryotic
12. The first edition of Bergey’s Manual had ________ volumes
a) 5
b) 4
c) 3
d) 6
Answer: B
13. The first edition of Bergey’s Manual was classified based on _________ characteristics
a) Phylogenetic
b) Phenetic
c) Chemical
d) None of the above
Answer: B
14. The second edition of Bergey’s Manual was published in ________
a) 1987
b) 1985
c) 1984
d) 1925
Answer: C
15. The second edition of Bergey’s Manual had _______ volumes
a) 5
b) 4
c) 3
d) 6
Answer: A
16. The second edition of Bergey’s Manual was classified based on _________
characteristics
a)Phylogenetic
b)Phenetic
c) Chemical
d) None of the above
Answer: A
17. Volume I of second edition of Bergey’s Manual is classified into __________ &
________ domains.
Answer: Archaea and Bacteria
18. _________ published Bergey’s Manual
a) David. H. Bergey
b) Robert Buchanan
c) Carl Woese
d) Haeckel
Answer: A
19. Aristotle classified organisms in two kingdom classification as __________& _________
Answer: Plants & Animals
20. The three kingdom classification was devised by
a) Aristotle
b) Haeckel
c) Cavalier – Smith
d) John Ray
Answer: B
21. Classification is the arrangement of organisms into _________
Answer: Groups or Taxa
22. Kingdom Protista comprises of
a) Prokaryotes
b) Unicellular eukaryotes
c) Multicellular eukaryotes
d) None of the above
Answer: B
23. Phylum Proteobacteria is classified into ______ classes
a) 2
b) 3
c) 4
d) 5
Answer: D
24. Phylum Spirochaetes comes under _______ in Bergey’s Manual
a) Volume II
b) Volume III
c) Volume IV
d) Volume V
Answer: D
25. Most of the anaerobic bacteria are found in _______ of Bergey’s Manual
a) Volume I
b) Volume II
c) Volume III
d) Volume IV
Answer:C
5X5 = 25
1. Write about five kingdom classification
2. Write short notes on I st edition of Bergey’s Manual
3. Explain eight kingdom classification with examples
4. List the points on which II edition of Bergey’s Manual is classified
5. Write short on taxonomic ranks
3X8 = 24
1. Define taxonomy and explain the types of taxonomy.
2. Describe about the II edition of Bergey’s Manual in detail.
3. Write about different kingdom classifications.
UNIT 2
1.
Colonies resembling molar teeth are produced by
a.Nocardia brasiliensis
b. N. asteroids
c. Actinomyces israelii
d. Actinomadura madurae
Answer: C
2. Methanogens
A. Produce methane as a part of their energy metabolism.
B. Utilize methane as an energy source.
C. Process and store methane as a part of their repair mechanism.
D. Do none of the above.
Answer: A
3. Archaea usually grow in a few restricted or specialized habitats, such as
Anaerobic
a. Hypersaline
b. Extremely hot
c. Extremely cold
d. All of these
Answer: E
4. Methanogenic bacteria are archaea that are
A)strict anaerobes that obtain energy through the synthesis of methane.
B) strict anaerobes that obtain energy through the consumption of methane.
C) strict aerobes that obtain energy through the synthesis of methane.
Answer: A
5. Which of the following is currently the largest group of archaea?
A)extreme halophiles
B)methanogens
C)extreme thermophiles
D)sulfate reducers
Answer: B
6. Methanogens are potentially of great importance because
A)they produce methane.
B)they consume methane.
C)methane is an excellent energy source.
D)both a and c
E)both b and c
Answer: D
7. Extreme halophiles are found in
A. animal intestines
B. Salt lakes
C. the Antarctic ice mass
Answer: B
8. What is Archaea?
(a) Archaea is a classification for organisms that have two nuclei.
(b) Archaea is a classification for organisms that use phagocytosis.
(c) Archaea is a classification of an organism that identifies
prokaryotes that do not have peptidoglycan cell walls.
(d) Archaea is a classification of an organism that identifies
prokaryotes that have peptidoglycan cell walls.
Answer: c
9. Biogas is produced by
a) aeobic breakdown of biomass
b) anaerobic break down of biomass
c) with the help of methanogenic bacteria
d) both b and c
Answer: d
10. Once they evolved, _____________ forever changed the atmosphere on earth.
a). bacteria
b). archaebacteria
c). cyanobacteria
d). eukaryotes
Answer: c
11. Archaebacteria and bacteria differ in all of the following ways except
a). the structure of the cell wall.
b). their presence in nonextreme environments.
c). the structure of the plasma membrane.
d). the kinds of ribosomal proteins they possess.
Answer: b
12. When bacterial cell walls are covered with an outer membrane of lipopolysaccharide, they
are
a). gram-positive.
b). gram-negative.
c). encapsulated.
d). endospores.
Answer: b
13. Spirulina is a
a) edible fungus
b)biofertilizer
c) biopesticide
d) single cell protein
Answer: d
14. Why is a bacterium called a prokaryotic organism?
(a) A bacterium is a one-cell organism that does not have a distinct nucleus.
(b) A bacterium is a one-cell organism that has a distinct nucleus.
(c) A bacterium is a multicell organism that does not have a distinct nucleus.
(d) A bacterium is a multicell organism that has a distinct nucleus.
Answer: a
15. What is a pathogenic microorganism?
(a) A microorganism that multiplies
(b) A microorganism that grows in a host
(c) A microorganism that is small
(d) A disease-causing microorganism
Answer: d
16. A bacillus is
A a spherical cell
B. a rod like cell
C. a common shape cell
D. a spiral cell
Answer: b
17. high G +C gram positive bacteria example
a. Corynebacteria
b. Enterococcus
c. Lactobacillus
d. Halobacterium
Answer: a
18. which live in high concentration of sodium chloride
a. Staphylococcus
b. E.Coli
c. Halococcus
d. Clostridium
Answer: c
19. Actinomyces consist of
a. Anaerobes
b. Facultative anaerobes
c. Aerobes
d. Obligate anaerobes
Answer: b
20. Actinomyces common in
a. water
b. soil
c. human
d. animal
Answer: b
21. Streptomyces asexual reproductive spore
a. Conidiospore
b. Zygospore
c. Ascospore
d. Basidiospore
Answer: a
22. Streptomyces characteristically produce a gaseous compound
a. methane
b. geosmin
c. nitrogen
d. sulfur
Answer: b
23. Acid fast stain
a. Mycoplasm
b. Corynebacterium
c. Mycobacterium
d. Frankia
Answer: C
24. Endospore forming cocci
a. Streptococcus
b. Staphylococcus
c. Sporosarcina
d. Bacillus
Answer: c
25. Which organism is fermentation swiss cheese
a. Corynebactteria
b. Propionibacterium
c. Frankia
d. Mycobacterium
Answer: b
3X5= 15
1. Write short notes on Methanogens
2. Give a brief answer about Halophiles
3. Write short notes on Actinomycetes
2X8=24
1. Explain in detail about Archaebacteria and their classification
2. Draw a neat diagram of Actinomycetes and explain their classification
UNIT 3
1. Which spore is on a club and results from the fusion of two nuclei from different strains of the
same fungi?
A.Ascospore
B. Basidiospore
C. Blastospore
D.Conidiospore
Answer: Option B
2. The bread mold Rhizopus stolonifer belongs to which of the following fungal divisions?
A.Ascomycota
B. Deuteromycota
C. Oomycota
D.Zygomycota
Answer: Option D
3. Saprophytic fungi
A.engulf their food in order to break it down.
B. secure their food from dead organic materials
C. both (a) and (b)
D.none of the above
Answer: Option B
4. The amount of phagocytosis done by the Plasmodium
A.is greater than by the water mold mycelium
B. is lesser than by the water mold mycelium
C. is equal to by the water mold mycelium
D.none of the above
Answer: Option A
5. Water molds belong to which division?
A.Ascomycota
C. Chytridiomycota
B. Basidiomycota
D.Oomycota
Answer: Option D
6.__________ produce basidiospores.
A.Slime molds
B. Dimorphic fungi
C. Club fungi
D.Sac fungi
Answer: Option C
7. Which of these spores are characteristic of the black bread mold Rhizopus?
A.Arthrospore and Ascospore
B. Ascospore and Zygospore
C. Arthrospore and Blastospore
D.Sporangiospore and Zygospore
Answer: Option D
8. The fruiting body of a mushroom is called
A.Sorocarps
C. Ascocarps
B. basidiocarps
D.plasmodiocarps
Answer: Option B
9. Which of the following does not represent a human disease caused by fungi?
A.Ringworm
B. Cryptococcosis
C. Malaria
D.Jock itch
Answer: Option C
10. Fungi that lack partitions (septa) are called
A.Ahyphae
B. coenocytic
C. Yeast
D.conidia
Answer: Option B
11. Fungi are important to food webs because
A.they are photoautotrophs
B. they have prokaryotic cell structure
C. they serve as key decomposers of dead organic matter
D.they generate antibiotics that kill competing plants and animals
Answer: Option C
12.__________ exhibit yeast-like growth at human body temperatures and mold-like growth at
room temperature.
A.Dimorphic fungi
B. Black bread molds
C. Sac fungi
D.Water molds
Answer: Option A
13.__________ produce motile sexual and asexual spores.
A.Slime molds
B. Dimorphic fungi
C. Club fungi
D.Water molds
Answer: Option D
14.Fungi
A.are photosynthetic
B. are prokaryotic cells
C. have cell walls of peptidoglycan
D.secrete extracellular enzymes to breakdown nutrients
Answer: Option D
15.Why are slime molds considered to resemble plants?
A.They can photosynthesize
B. They have cell walls composed largely of cellulose
C. They form a threadlike structure
D.They form structures that resemble leaves
Answer: Option B
16.The most significant reason why fungi are not in the kingdom Plantae is that fungi
A.are chemoorganotrophic heterotrophs
B. have unicellular and multi-cellular forms
C. are prokaryotes
D.are eukaryotes
Answer: Option A
17. __________ produce ascospores in an ascus.
A.Slime molds
B. Dimorphic fungi
C. Club fungi
D.Sac fungi
Answer: Option D
18.Ecologically fungi are important because
A.they act as decomposers and aid in nutrient cycling
B. they are a major cause of plant diseases
C. Both (a) and (b)
D.none of the above
Answer: Option C
19.The thallus of a mold consists of
A.Mycelium
B. Spores
C. both (a) and (b)
D.none of these
Answer: Option C
20.__________ produce zygospores.
A.Slime molds
B. Dimorphic fungi
C. Club fungi
D.Black bread molds
Answer: Option D
21.Which of the following is/are the sexual spore?
A.Ascospores
B. Basidiospores
C. Both (a) and (b)
D.None of these
Answer: Option C
22.Name the asexual spore(s)?
A.Conidia
B. Sporangiospore
C. Arthospores
D.All of these
Answer: Option D
23.Water molds form flagellated spores are called
A.Dinoflagellates
B. fruiting bodies
C. Zoospores
D.Trichocysts
Answer: Option C
24.Yeasts may undergo
A.alcoholic fermentation
B. homolactic fermentation
C. heterolactic fermentation
D.all of these
Answer: Option D
25. Which of the following is not a member of the division Ascomycota?
A.Aspergillus
B. Claviceps
C. Penicillium
D.Rhizopus
Answer: Option D
5X5=25
1.
2.
3.
4.
5.
Write short notes on general features of fungi
Give the economic importance of fungi
Draw a neat and labeled diagram of Mucor
Draw a neat and labeled diagram of Penicillium
Write about the general reproduction of fungi
3X8=24
1. Explain in detail the life cycle and modes of reproduction of Aspergillus.
2. Explain in detail the life cycle and modes of reproduction of Rhizopus.
3. Give a detailed account on the general characters and economic importance of fungi.
UNIT 4
1. Which of the following algal divisions is characterized by possession of chlorophylls A and B,
starch as the energy storage material, cellulosic cell walls and live in freshwater and marine
habitats?
A.
B.
C.
D.
Chlorophyta
Chrysophyta
Phaeophyta
Pyrrophyta
Answer: Option A
2. All algae possess
A.Nuclei
B. Chloroplasts
C. Both (a) and (b)
D.none of these
Answer: Option C
3. Algae is a nonvalid taxonomic term that refers to
A.eukaryotic organisms that have chlorophyll a and produce O2
B. well developed cellular structure including a conducting system
C. Both (a) and (b)
D.none of the above
Answer: Option A
4. Laminarin is an energy storage material characteristic of
A.Chlorophyta
B. chrysophyta
C. Phaeophyta
D.pyrrophyta
Answer: Option C
5. Chlamydomonas and Volvox are similar because
A.they both are motile
B. they are members of the Chlorophyta
C. Both (a) and (b)
D.none of these
Answer: Option C
6. Characteristics used to place algae into divisions include all of the following except
A.form of storage material
B. flagella number and location
C. accessor pigments used in photosynthesis
D.all of the above
Answer: Option D
7. Which algal division never produces motile, flagellated cells among any of its members?
A.Chlorophyta
B. Chrysophyta
C. Phaeophyta
D.Rhodophyta
Answer: Option D
8.Starch is an energy storage material characteristic of
A.Chlorophyta
B. chrysophyta
C. Phaeophyta
D.rhodophyta
Answer: Option D
9. Algae are classified into 6 groups, technically known as
A.Categories
C. Genera
B. divisions
D.domains
Answer: Option B
10. The __________ is the vegetative body of algae.
A.Mycelium
B. plasmodium
C. Pseudoplasmodium
D.thallus
Answer: Option D
11. Agar, which is the solidifying agent in many bacterial culture media, is part of the cell wall
of
A.Chlorophyta
B. chrysophyta
C. Pyrrophyta
D.rhodophyta
Answer: Option D.
12. Algae are found in all of the following places except
A.Oceans
B. Soils
C. lakes and streams
D.associates with fungi
Answer: Option C
13. Which of the following best describes the algae known as diatoms?
A.Cells have intricate shells of silicon dioxide with two halves
B. Cells are encased in rigid walls composed of cellulose coated with silicon
C. Cells have flagella and a light-detecting eye spot
D.Cells contain carotenoid pigments as well as chlorophyll A and B
Answer: Option A
14. Chrysolaminarin is an energy storage material characteristic of
A.Chlorophyta
B. chrysophyta
C. Phaeophyta
D.rhodophyta
Answer: Option B
15. Agar-Agar is obtained from
A. Gelidium
B. Polysiphonia
C. Fucus
D. Laminaria
Answer: Option A
16. Which is the most primitive group of algae?
A. Blue green algae
B. Red algae
C. Brown algae
D. Green algae
Answer: Option A
17. Which of the following is the most advanced group of algae?
A. Cyanophyta
B. Rhodophyta
C. Phaeophyta
D. Chlorophyta
Answer: Option B
18. Which of the algae is responsible for red colour of red sea
A. Chlamydomonas brauii
B. Trichodesmium erythrium
C. Ulothrix zonata
D. None of the above
Answer: Option B
19. One of the following is present in blue green algae
A. Starch
B. Cyanophacean granule
C. Any polysaccharide
D. Floridian starch
Answer: Option B
20. Heterocysts are
A. Green and thin walled
B. Green and thick walled
C. Colourless and thin walled
D. Colourless and thick walled
Answer: Option D
21. Which algae is a deepest growing alga in the sea?
A. Blue green algae
B. Red algae
C. Brown algae
D. All
Answer: Option B
22. Brown algae is due to the presence of ______________.
A. Phycoxanthin
B. Fucoxanthin
C. Brownoxanthin
D. None
Answer: Option B
23. Which of the following statement is incorrect?
A.
B.
C.
D.
All algae are microscopic
Algae are thallophytes
Four grouped of algae are blue-green algae, green algae,brown algae and red algae
Algae manufature food
Answer: Option A
24 .In algae cell wall is made up of?
A. Chitin
B. suberin
C. cellulose
D. cutin
Answer: Option C
25. Which algal division is divided up into three main groups consisting of the golden-brown algae,
the yellow-green algae and the diatoms?
E.
F.
G.
H.
Chlorophyta
Chrysophyta
Phaeophyta
Pyrrophyta
Answer: Option B
5X3= 25
1. Give short notes on the morphology of algae.
2. Write a brief note on the general characters of algae
3. Explain the economic importance of algae
2X8= 24
1. Write in detail about the general characters and reproduction of algae.
2. Give an introduction and economic importance of algae.
Unit 5
1.
Protozoa were first discovered by:
A.
Pasteur
B.
Leeuwenhoek
C.
Darwin
D.
Kudo
Answer: Option B
2.
First studied protozoa by Leeuwenhoek was:
A.
Amoeba
B.
Euglena
C.
Vorticella
D.
None of these
B.
Hall
Answer: Option C
3.
Name protozoa was given by:
A.
Goldfuss
C.
Jablot
D.
None of these
Answer: Option A
4.
Branch of zoology related with the study of protozoans is:
A.
Parazoology
B.
Proteology
C.
Protology
D.
Protozoology
Answer: Option D
5.
Natural death does not occur in:
A.
Porifera
B.
Protozoans
C.
Echinoderms
D.
None of these
Answer: Option B
6.
Largest fresh water protozoa is:
A.
Paramecium caudatum
B.
Pelomyxa palustris
C.
Vorticella minim
D.
Spirostomum ambiguum
Answer: Option B
7.
Amoeba proteus name was given on the 'Sea God' because it:
A.
Changes its shape like him
B.
Is unicellular
C.
Is naked
D.
Has all of these
Answer: Option A
8.
Which of these is a marine amoeba:
A.
Amoeba radiosa
B.
Thecameoba orbis
C.
Amoeba verrucosa
D.
Amoeba dubina
Answer: Option B
9.
Amoeba is called naked because:
A.
It is single celled
B.
It has a delicate plasma membrane
C.
It is uninucleated
D.
It has all of these
Answer: Option B
10. Pellicle is found in:
A.
Amoeba
B.
Euglena
C.
Euglena and paramecium
D.
All of these
Answer: Option C
11. Pellicle is present in:
A.
Amoeba verrucosa
B.
Amoeba proteus
C.
Amoeba dubia
D.
None of these
Answer: Option A
12. Infective stages of Entamoeba histolytica are spread by:
A.
Mice
B.
Mosquitoes
C.
House-files
D.
Beg-bugs
Answer: Option C
13. Food vacuole in Amoeba is analogous to:
A.
Digestive tract of higher animals
B.
Circulatory system of high animals
C.
Only mouth of higher animals
D.
None of these
Answer: Option A
14. Secondary host for malarial parasite is:
A.
Male anopheles
B.
Female anopheles
C.
Male culex
D.
Female culex
Answer: Option C
15.
Multinucleate Amoeba is:
A.
Amoeba verrucosa
B.
Pelomyxa plaustris
C.
Amoeba radiosa
D.
Amoeba discoides
Answer: Option B
16. Pseudopodia of Amoeba are:
A.
Lobopodia
B.
Filopodia
C.
Axopodia
D.
All of these
Answer: Option A
17. Locomotory organs in protozoans are:
A.
Arcella and Entamoeba
B.
Leishmania and Trypanosoma
C.
Paramecium and balantidium
D.
All of these
Answer: Option D
18. Protozoans showing polymorphism are:
A.
Arcella and Entamoeba
B.
Leishmania and Trypanosoma
C.
Paramecium and Balantidium
D.
All of these
Answer: Option B
19. Protozoan showing bioluminiscence is:
A.
Giardia
B.
Noctiluca
C.
Balantidum
D.
None of these
Answer: Option A
20. Entamoeba is a:
A.
Monogenetic parasite
B.
Digenetic parasite
C.
Polygenetic parasite
D.
None of these
Answer: Option A
21. Entamoeba differs from Amoeba in having:
A.
One contractile vacuole
B.
Two contractile vacuoles
C.
No contractile vacuoles
D.
None of these respects
Answer: Option C
22. Entamoeba histolytica causes:
A.
Dysentery
B.
Typhoid
C.
Malaria
D.
Filaria
Answer: Option A
23. Entamoeba histolytica is found in the man in:
A.
Colon
B.
Small intestine
C.
Oval cavity
D.
Stomach
Answer: Option A
24. Malaria is caused by:
A.
Ascaris
B.
Plasmodium
C.
Foul air
D.
Mosquitoes
Answer: Option B
25. Sleeping sickness' is caused by:
A.
Entamoeba
B.
Plasmodium
C.
Trypanosoma
D.
None of these
Answer: Option C
3X5=15
1. Write short notes on Ciliata
2. Give a brief account on Sporozoa
3. Write a note on Rhizopoda
2X8=16
1. Give a detailed account on the general characteristics and economic importance of Sarcodina
2. Write in detail about the general characteristics and economic importance of Mastigophora