Bacteria cannot survive in a highly salted pickle because

Bacteria get plasmolysed and are consequently killed

The pickel does not contain nutrient necessary for bacteria to survive

Bacteria do not get enough light for photosynthisis

Microorganism include

Bacteria, Virus, Microalgae and Fungi

Bacteria, Virus Microalgae, Fungi and Protozoa

Expanded form of HIV is

Human immunity deficiency virus

Human immune deficiency syndrome virus

Expanded form of AIDS is

Acquired immun deficiency syndrome

"The walking fern" is so named because

It is dispersed through the agency of walking animal

It propagates vegetatively by its leaf tips

Yeast is used in bakery in the preparation of bread because

It increase the food value of bread

In bakery when yeast is added in kneaded flour it become soft and spongy due to

Yeast produce acetic acid and alcohol which makes the bread soft

Algae are important for human being because

It can be turned to important diet in future for human

Insectivorus plants grow where

Soil is deficient in carbohydrate

275 + Mcqs in Micro Organism in Biology Page 2 McqOptions

51.	Consider the following 1. Nucleic acid 2. Carbohydrate 3. Protein A virus is made up of which of the following
A.	1 and 2 only
B.	2 and 3 only
C.	1 and 3 only
D.	1, 2 and 3
Answer» D. 1, 2 and 3

Discussion

52.	Bacteria cannot survive in a highly salted pickle because
A.	Bacteria get plasmolysed and are consequently killed
B.	Salt inhibits reproduction
C.	The pickel does not contain nutrient necessary for bacteria to survive
D.	Bacteria do not get enough light for photosynthisis
Answer» B. Salt inhibits reproduction

Discussion

53.	Microorganism include
A.	Bacteria & Virus
B.	Bacteria, Virus, Microalgae and Fungi
C.	Bacteria, Virus Microalgae, Fungi and Protozoa
D.	All animals & Plants
Answer» D. All animals & Plants

Discussion

54.	Refrigeration is a process in which
A.	Bacteria are destroyed
B.	Growth of bacteria reduced
C.	Bacteria become inactive
D.	Cytoplasm of bacteria contract
Answer» D. Cytoplasm of bacteria contract

Discussion

55.	Expanded form of HIV is
A.	Human immune virus
B.	Human immunity deficiency virus
C.	Human immune deficiency syndrome virus
D.	None of these
Answer» D. None of these

Discussion

56.	In lichen symbiotic relationship between fungi and algae is called
A.	Halotism
B.	Parasitism
C.	Saprophytism
D.	None of these
Answer» B. Parasitism

Discussion

57.	Litmus paper used in laboratary obtained from
A.	Green algae
B.	Blue-green algae
C.	Lichen
D.	Fungi
Answer» D. Fungi

Discussion

58.	Fungi which grow on cow dung are called
A.	Saxecoles
B.	Corticoles
C.	Coprophilous
D.	Zoophilous
Answer» D. Zoophilous

Discussion

59.	Pond Sillc is the common name of
A.	Spirogyra
B.	Chlorella
C.	Ulva
D.	Nostoc
Answer» B. Chlorella

Discussion

60.	LSD is obtained from
A.	Bacteria
B.	Fungi
C.	2, 4-D
D.	Alcohol
Answer» C. 2, 4-D

Discussion

61.	All fungi are always
A.	Parasite
B.	Autotrophic
C.	Heterotrophic
D.	Saprohytic
Answer» D. Saprohytic

Discussion

62.	Penicillum is a
A.	Virus
B.	Algae
C.	Fungi
D.	Bacteria
Answer» D. Bacteria

Discussion

63.	Which of the following do not have chlorophyll?
A.	Algae
B.	Bryophytes
C.	Pteridophytes
D.	Fungi
Answer» E.

Discussion

64.	Which of the following unicellular algae are used as source of oxygen in space research?
A.	Ulothrix
B.	Spirogyra
C.	Chlorella
D.	Odogonium
Answer» D. Odogonium

Discussion

65.	Red colour of red sea is dua to
A.	Moss
B.	Algae
C.	Fungi
D.	Bacteria
Answer» C. Fungi

Discussion

66.	The food material in fungi is stored in the form of
A.	Starch
B.	Glycogen
C.	Glucose
D.	Sucrose
Answer» C. Glucose

Discussion

67.	Cell wall of fungi is made up of
A.	Lipids
B.	Cellulose
C.	Protein
D.	Chitin & Hemicellulose
Answer» E.

Discussion

68.	Smallest from of bacteria is called
A.	Vibrio
B.	Cocci
C.	Bacilli
D.	Spirilla
Answer» C. Bacilli

Discussion

69.	Bat can fly in dark because they
A.	have strong wings
B.	have sharp eyes
C.	Produce ultrasonic waves
D.	are natural
Answer» D. are natural

Discussion

70.	Fungi grown on the bark of tree is
A.	Saxocoles
B.	Corticoles
C.	Tericoles
D.	Coprophillus
Answer» C. Tericoles

Discussion

71.	Sea known as Sargasso is due to
A.	Fungi
B.	Angiosperm
C.	Algae
D.	Bryophyto
Answer» D. Bryophyto

Discussion

72.	Lichen which grow on stones are called
A.	Saxocoles
B.	Corticoles
C.	Sexotelus
D.	Ascocoles
Answer» B. Corticoles

Discussion

73.	Aflatoxion is a
A.	Poision produced by fungi
B.	Antibiotic
C.	Poision in snake
D.	Poision produced by snake
Answer» B. Antibiotic

Discussion

74.	Kelps are
A.	Fresh water algae
B.	Marine algae
C.	Terrestrial
D.	Amphibious
Answer» C. Terrestrial

Discussion

75.	Which of the following is found in largest number
A.	Fungi
B.	Algae
C.	Bacteria
D.	Insects
Answer» D. Insects

Discussion

76.	The antibiotic penicillin was first discovered by
A.	Louis Pasteur
B.	Robert Koch
C.	Alexzander Fleming
D.	S. Waksman
Answer» D. S. Waksman

Discussion

77.	Which of the following is edible fungi
A.	Mucor
B.	Penicillum
C.	Agaricus
D.	Rhizopus
Answer» D. Rhizopus

Discussion

78.	Expanded form of AIDS is
A.	Acquired immun deficiency syndrome
B.	Acquired deficiency syndrome
C.	Acquired immunity syndrome
D.	Acquired incapablity syndrome
Answer» B. Acquired deficiency syndrome

Discussion

79.	Viruses are made up of
A.	Protein & lipids
B.	Nucleic acid & protein
C.	Lipids & Carbohydrate
D.	Carbohydrate & Nucleic acid
Answer» C. Lipids & Carbohydrate

Discussion

80.	Two bacteria found to be very useful in genetic engineering experiment as
A.	Nitrosomonas and klebsiella
B.	Escherichia and Agrobacterium
C.	Nitrobacter and Azoobacter
D.	Rhizobium and Diplococcus
Answer» C. Nitrobacter and Azoobacter

Discussion

81.	Mitochondira is absent in
A.	Fungi
B.	Algae
C.	Bacteria
D.	Yeast
Answer» D. Yeast

Discussion

82.	True nucleus is absent in
A.	Fungi
B.	Lichane
C.	Bacteria
D.	Algae
Answer» D. Algae

Discussion

83.	"The walking fern" is so named because
A.	Its spores are able to walk
B.	It is dispersed through the agency of walking animal
C.	It propagates vegetatively by its leaf tips
D.	It known how to walk by itself
Answer» D. It known how to walk by itself

Discussion

84.	Yeast is used in bakery in the preparation of bread because
A.	It make on bread hard
B.	It make bread soft and spongy
C.	It increase the food value of bread
D.	It keep the bread fresh
Answer» C. It increase the food value of bread

Discussion

85.	Early blight of potato is caused by
A.	Phytopthora infestans
B.	Alternaria solani
C.	Albugo candida
D.	Sclerospora graminicola
Answer» C. Albugo candida

Discussion

86.	The disease late blight of potato is caused by
A.	Fusarium oxysporum
B.	Alternaria solani
C.	Albuigo candiada
D.	Phytophthora infestans
Answer» E.

Discussion

87.	In bakery when yeast is added in kneaded flour it become soft and spongy due to
A.	Yeast produce benzoic acid
B.	Production of CO
C.	making the bread spongy
D.	Yeast makes the flout soft
E.	Yeast produce acetic acid and alcohol which makes the bread soft
Answer» C. making the bread spongy

Discussion

88.	Microbial fuel cells are considered a source of substainable energy. why? 1. They use living organisms as catalysts to generate electricity from certain susbtracts. 2. They use a variety of inorganic materials as susbtrates. 3. They can be installed in waste water treatment plants to cleanse water and produce electrucity. which statements given above is / are correct?
A.	1 only
B.	2 and 3 only
C.	1 and 3 only
D.	1, 2 and 3
Answer» C. 1 and 3 only

Discussion

89.	The disease Athelet foot is caused by
A.	Bacteria
B.	Fungi
C.	Protozoa
D.	Nematod
Answer» C. Protozoa

Discussion

90.	On industrial pencillin is obtain from
A.	Penicillum notatum
B.	penicillum Chrysogenum
C.	Penicillum griscofulum
D.	Penicillum roqueforti
Answer» C. Penicillum griscofulum

Discussion

91.	Algae are important for human being because
A.	It can be turned to important diet in future for human
B.	It purifies atmosphere
C.	It can be grown in water tank
D.	None of these
Answer» B. It purifies atmosphere

Discussion

92.	Fungi used in baking industry
A.	Saccharomyces cerevisial
B.	Schizosacchromyces
C.	Saccharomyces ellipsaideus
D.	Rihzopus stolonifer
Answer» B. Schizosacchromyces

Discussion

93.	Consider the following organism? 1. Agaricus 2. Aspergillus 3. Ulothrox 4. Ulva Which of these are algae/
A.	1 and 2
B.	1 and 3
C.	2 and 4
D.	3 and 4
Answer» E.

Discussion

94.	Symbiotic association of mycorrhiza is between
A.	Algae & Bryophytes
B.	Fungi and root of higher plant
C.	Algae & root of Gymnosperm
D.	Algae & Fungi
Answer» C. Algae & root of Gymnosperm

Discussion

95.	Consider the following statements 1. The common blue green algae spirogyra and ulothrix are found in both fresh water ponds and oceans 2. The chameleon can look ahead with one eye and at the same time look behind with another Which of these statements is/are correct?
A.	Only 1
B.	Only 2
C.	Both 1 and 2
D.	Neither 1 nor 2
Answer» E.

Discussion

96.	Insectivorus plants grow where
A.	Soil is deficient in nitrogen
B.	Soil is deficient in carbohydrate
C.	Vitamin C is required
D.	Hormones are required
Answer» B. Soil is deficient in carbohydrate

Discussion

97.	Virueses are
A.	Complete saprophytes
B.	Partial parasites
C.	Partial saprophytes
D.	Total parasite
Answer» E.

Discussion

98.	Spiral shape bacteria is called
A.	Diplococus
B.	Bacillus
C.	Cocus
D.	Spirillum
Answer» E.

Discussion

99.	Genetic material of a virus is
A.	DNA
B.	RNA
C.	Either DNA or RNA
D.	Both DNA and RNA
Answer» D. Both DNA and RNA

Discussion

100.	The discovery of viruses was made by
A.	Ivanowski
B.	Beijierinck
C.	Miller
D.	Stanley
Answer» B. Beijierinck

Discussion

Explore topic-wise MCQs in Biology.

Consider the following1. Nucleic acid2. Carbohydrate 3. ProteinA virus is made up of which of the following

Bacteria cannot survive in a highly salted pickle because

Microorganism include

Refrigeration is a process in which

Expanded form of HIV is

In lichen symbiotic relationship between fungi and algae is called

Litmus paper used in laboratary obtained from

Fungi which grow on cow dung are called

Pond Sillc is the common name of

LSD is obtained from

All fungi are always

Penicillum is a

Which of the following do not have chlorophyll?

Which of the following unicellular algae are used as source of oxygen in space research?

Red colour of red sea is dua to

The food material in fungi is stored in the form of

Cell wall of fungi is made up of

Smallest from of bacteria is called

Bat can fly in dark because they

Fungi grown on the bark of tree is

Sea known as Sargasso is due to

Lichen which grow on stones are called

Aflatoxion is a

Kelps are

Which of the following is found in largest number

The antibiotic penicillin was first discovered by

Which of the following is edible fungi

Expanded form of AIDS is

Viruses are made up of

Two bacteria found to be very useful in genetic engineering experiment as

Mitochondira is absent in

True nucleus is absent in

"The walking fern" is so named because

Yeast is used in bakery in the preparation of bread because

Early blight of potato is caused by

The disease late blight of potato is caused by

In bakery when yeast is added in kneaded flour it become soft and spongy due to

The disease Athelet foot is caused by

On industrial pencillin is obtain from

Algae are important for human being because

Fungi used in baking industry

Consider the following organism?1. Agaricus2. Aspergillus3. Ulothrox4. UlvaWhich of these are algae/

Symbiotic association of mycorrhiza is between

Consider the following statements1. The common blue green algae spirogyra and ulothrix are found in both fresh water ponds and oceans2. The chameleon can look ahead with one eye and at the same time look behind with anotherWhich of these statements is/are correct?

Insectivorus plants grow where

Virueses are

Spiral shape bacteria is called

Genetic material of a virus is

The discovery of viruses was made by

Consider the following
1. Nucleic acid
2. Carbohydrate
3. Protein
A virus is made up of which of the following

Consider the following organism?
1. Agaricus
2. Aspergillus
3. Ulothrox
4. Ulva
Which of these are algae/

Consider the following statements
1. The common blue green algae spirogyra and ulothrix are found in both fresh water ponds and oceans
2. The chameleon can look ahead with one eye and at the same time look behind with another
Which of these statements is/are correct?