MCQGeeks
0 : 0 : 1
CBSE
JEE
NTSE
NEET
English
UK Quiz
Quiz
Driving Test
Practice
Games
NEET
NEET Biology MCQ
Biological Classification Viruses, Viroids, Prions And Kingdome Monera MCQ
Quiz 4
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
Q.1
Bacteria possess the organelle …[ BHU 1999]
0%
a) Golgi bodies
0%
b) Mesosomes
0%
c) Mitochondria
0%
d) All the above
Explanation
Answer : (b)
Q.2
Which one does not evolve oxygen … [ CPMT 1999]
0%
a) Photosynthetic bacteria
0%
b) Blue green algae
0%
c) Green algae
0%
d) Autotrophic plants
Explanation
Cyanobacteria contain chlorophyll while other forms of bacteria contain bacteriochlorophyll. Although bacteriochlorophyll resembles chlorophyll, it absorbs light of a longer wavelength than chlorophyll. Bacteriochlorophyll a is the most common form of bacteriochlorophyll but other forms include b, c, d, e, f and g. Bacteria that contain bacteriochlorophyll do not use water as an electron donor and therefore do not produce oxygen. This is known as anoxygenic photosynthesis. Cyanobacteria perform photosynthesis using water as an electron donor in a similar manner to plants. This results in the production of oxygen and is known as oxygenic photosynthesis. Answer : (a)
Q.3
Fruit, meat and milk are preserved at room temperature through the process of … [ AFMC 1998]
0%
a) Pasteurisation
0%
b) Fridge
0%
c) Dehydration
0%
d) Vernalisation
Explanation
Dehydration is one of the oldest methods of food preservation and was used by prehistoric peoples in sun-drying seeds. In this, the water or moisture is removed from the food. This inhibits the growth of microorganisms and increases the shelf life of food. Milk powder is dehydration of milk Answer : (c)
Q.4
Organisms which obtain energy by oxidation of reduced inorganic compounds are … [ CBSE 2002]
0%
a) Photoautotrophs
0%
b) Saprotrophs
0%
c) Coproheterotrophs
0%
d) Chemoheterotrophs
Explanation
Answer : (d)
Q.5
Nif genes occur in … ..[CPMT 2004]
0%
a) Penicillium
0%
b) Rhizobium
0%
c) Aspergillus
0%
d) Streptococcus
Explanation
Answer : (b)
Q.6
In which kingdom would you include archaea and nitrogen fixing organisms in the five kingdom classification … [ CBSE 2003]
0%
a) Plantae
0%
b) Fungi
0%
c) Protista
0%
d) Monera
Explanation
Answer : (d)
Q.7
Find correct match
List I
List II
M13 bacteriophage
dsRNA
Rice Dwarf Virus
ss RNA
Cauliflower Mosaic Virus
ss DNA
Polio Virus
ds DNA
0%
a) a – iii, b – i, c – iv, d -ii
0%
b) a – ii, b – i, c – iii, d –iv
0%
c) a – iii, b – Iv, c – ii, d –i
0%
d) a – iv, b – iii, c – i, d -ii
Explanation
Cauliflower mosaic virus (CaMV) contains a circular double-stranded DNA molecule (dsDNA). Poliovirus is composed of an single-stranded positive-sense RNA genome (ssRNA) and a protein capsid. The Rice Dwarf Virus is a double-stranded linear RNA virus (dsRNA). M13 is a virus that infects the bacterium Escherichia coli. It is composed of a circular single-stranded DNA molecule (ssDNA). Answer : (a)
Q.8
Archaea differ from eubacteria in one of the following features …
0%
a) They have a rigid wall
0%
b) Their cell wall lacks peptidoglycan component
0%
c) They have 16 SRNA
0%
d) They are very ancient
Explanation
Answer : (b)
Q.9
Botulism caused by Clostridium botulinum affects … .. [ CBSE 1998]
0%
a) Spleen
0%
b) Intestine
0%
c) Neuromuscular junctions
0%
d) Lymph glands
Explanation
Answer : (c)
Q.10
Which of the following statements is correct … [ DPMT 2009]
0%
a) All bacteria are heterotrophic
0%
b) Bacteria are either heterotrophic or chemoautotrophic
0%
c) Bacteria are either photoautotrophic or chemoautotrophic
0%
d) Bacteria can also be photoautotrophic
Explanation
Answer : (d)
Q.11
Nitrogen fixation is performed by … .. [ AMU 1999]
0%
a) Green algae and fungi
0%
b) Fern and cycads
0%
c) Legumes and cereals
0%
d) Blue-green algae and bacteria
Explanation
Answer : (d)
Q.12
Bacteria obtaining energy by oxidation of inorganic substances are … .. [ MPPMT 1999]
0%
a) Chemolithotrophs
0%
b) Chemo-organotrophs
0%
c) Photolithotrophs
0%
d) Photo-organotrophs
Explanation
Answer : (a)
Q.13
Which is not a method of genetic recombination is bacteria? [ AIIMS 1998]
0%
a) transformation
0%
b) transduction
0%
c) translation
0%
d) conjugation
Explanation
Answer : (c)
Q.14
In blue green algae, photosynthesis occurs in … [ CMC 2003]
0%
a) Cytoplasm
0%
b) Grana
0%
c) Nucleoid
0%
d) Membranous lamellae
Explanation
Answer : (d)
Q.15
Match the columns and find out the correct combination
a)Treponema pallidum
i)Plague
b)Yersinia pestis
ii)Anthrax
c)Bacillus anthracis
ii)Syphilis
d)Vibrio
iv) Cholera
0%
a) a - i, b – iii , c - ii, d - iv
0%
b) a - iii, b – i , c - ii, d – iv
0%
c) a - iv, b – iii , c - i, d – ii
0%
d) a - ii, b – iii , c - i, d – iv
Explanation
Answer : (b)
Q.16
What is true … [ KCET 2004]
0%
a) Diatoms produce basidiospores
0%
b) Heterocysts occur in Nostoc
0%
c) Fronds develop in bryophytes
0%
d) Multiciliate sperms occur in angiosperms
Explanation
Answer : (b)
Q.17
Proteinaceous infectious particles causing diseases are … [ CBSE 2010]
0%
a) Prions
0%
b) Viroids
0%
c) Viruses
0%
d) Chlamydia
Explanation
Answer : (a)
Q.18
In root nodules of legumes, leghaemoglobin … [ DPMT 2009]
0%
a) Transports oxygen to root nodules
0%
b) Acts as an oxygen scavenger
0%
c) Acts an a catalyst in transamination
0%
d) Provides energy to nitrogen fixing bacteria
Explanation
Answer : (b)
Q.19
Amino acid found only in bacteria and cyanobacteria is … [ kerala 2003]
0%
a) Muramic acid
0%
b) Methionine
0%
c) Glutamic acid
0%
d) Diaminopimelic acid
Explanation
Answer : (d)
Q.20
Iron chelating substance is produced by a growth promoting rhizobacterium … [ kerala 2004]
0%
a) Rhizobium japonicum
0%
b) Azospirillum
0%
c) Pseudomonas putida
0%
d) Aspergillus
Explanation
Answer : (b)
Q.21
Which of the following is essential for nitrogen fixation in legumes?
0%
a) Anthocyanin
0%
b) Phycocyanin
0%
c) Phycoerythrin
0%
d) Leghaemoglobin
Explanation
Answer : (d)
Q.22
Witches Broom of Potato Tree is caused by … [ RPMT 1998]
0%
a) Mycoplasma
0%
b) Bacteria
0%
c) Viruses
0%
d) All the above
Explanation
Answer : (a)
Q.23
The bacterium ( Clostridium botulinum) that causes botulism is … [ DPMT 1999]
0%
a) Obligate aerobe
0%
b) Facultative aerobe
0%
c) Facultative anaerobe
0%
d) Obligate anaerobe
Explanation
Answer : (d)
Q.24
Statements regarding Frankia are correct except … [ CBSE 2005]
0%
a) Induction of root nodules in many plants species
0%
b) Like Rhizobium, it infects host through root hair and induces proliferation of cortex.
0%
c) Form specialized vesicles in which nitrogenase is protected from oxygen by a chemical barrier involving triterpene hopanoids
0%
d) Cannot fix nitrogen in free state
Explanation
Answer : (d)
Q.25
Bacteriophage releases lysozyme at …. [ CPMT 2007]
0%
a) Absorption phase
0%
b) Penetration phase
0%
c) Eclipse phase
0%
d) Maturation phase
Explanation
Answer : (b)
Q.26
Pigments phycocyanin and phycoerythrin occur in … [ kerala 2005]
0%
a) Bacillariophyceae
0%
b) Archaebacteria
0%
c) Eubacteria
0%
d) Cyanobacteria
Explanation
Answer : (d)
Q.27
Host of TMV is … .. [ Odisha 2007]
0%
a) Nicotiana
0%
b) Triticum
0%
c) Datura
0%
d) Withania
Explanation
Answer : (a)
Q.28
A symbiotic bacterium is … [ DPMT 2009]
0%
a) Erwinia amylovora
0%
b) Rhizobium leguminosarum
0%
c)Xanthomonas campestris
0%
d) Agrobacterium tumefaciens
Explanation
Answer : (b)
Q.29
On the basis of rRNA genes, bacteria are divided into … [ Odisha 2008]
0%
a) Cyanobacteria and Mycoplasma
0%
b) Actinomycetes and Mycoplasma
0%
c) Bacteria and Archaebacteria
0%
d) Gram(+) and Gram(-)
Explanation
Answer : (c)
Q.30
Azolla has a symbiotic relationship with …. [ CBSE 2004]
0%
a) Chlorella
0%
b) Anabaena
0%
c) Nostoc
0%
d) Tolypothrix
Explanation
Answer : (b)
Q.31
Match the columns and find the correct answer.
a)Streptomyces;
p) food poisoning
b)Rhizobium
q)Source of antibiotics
c)Nitrosomonas
r)Nitrogen fixation
d)Acetobacter
s)Nitrification
- -
t) Vinegar synthesis
0%
a) a –s , b – t, c –p, d - r
0%
b) a –t , b – p, c –r, d – s
0%
c) a –q , b – r, c –p, d – t
0%
d) a –q , b – r, c –s, d – t
Explanation
Answer : (d)
Q.32
A bacterium which has been genetically modified to control pollution is …. [ CPMT 1998]
0%
a) Pseudomonas
0%
b) Rhizobium
0%
c) Nitrobacter
0%
d) Nitrosomonas
Explanation
Answer : (a)
Q.33
Organisms found in extreme temperatures are … [ DPMT 2001]
0%
a) Fungi
0%
b) Cyanobacteria
0%
c) Eubacteria
0%
d) Archaebacteria
Explanation
Answer : (d)
Q.34
Which one is not matched …[CBSE 2004]
0%
a) Streptomyces – Antibiotic
0%
b) Serratia – Durg addition
0%
c) Rhizobium – Biofertilizer
0%
d) Spirulina – Single cell protein
Explanation
Answer : (b)
Q.35
What is true of mycoplasma ..[ HPPMT 2016]
0%
a) They completely lack cell wall
0%
b) They are the smallest living cells known
0%
c) They can survive without oxygen
0%
d) All the above
Explanation
Answer : (d)
Q.36
All monerans …. [ Pb. PMT 2005]
0%
a) Contain DNA and RNA
0%
b) Are bacteria
0%
c) Demonstrate a circular strand of DNA without a covering of nuclear membrane
0%
d) All of these
Explanation
Answer : (d)
Q.37
Cryptogram of TMV is … .. [ CPMT 2004]
0%
a) R/1, 1/8, S/S, S/Af
0%
b) R/2, 1/5, E/P, O/S
0%
c) R/1, 2/5, E/E, S/O
0%
d) R/1, 2/7, E/E, S/O
Explanation
Answer : (a)
Q.38
A bacterium having flagella on the opposite ends is … [ CPMT 2001]
0%
a) Monotrichous
0%
b) Lophotrichous
0%
c) Amphitrichous
0%
d) Polytrichous
Explanation
Answer : (c)
Q.39
Which ones are the most primitive amongst the following? [ BHU 2005]
0%
a) Bryophytes
0%
b) Gymnosperms
0%
c) Monocots
0%
d) Cyanobacteria
Explanation
Answer : (d)
Q.40
Bacterial pili are involved in … [ CMC 2003]
0%
a) Asexual reproduction
0%
b) Sexual reproduction
0%
c) Saprophytic nutrition
0%
d) Antibiotic resistance
Explanation
Answer : (b)
Q.41
Which one is a prokaryote?
0%
a) Entamoeba
0%
b) Saccharomyces
0%
c) Paramecium
0%
d) E coli
Explanation
Answer : (d)
Q.42
Nostoc has a characteristic … ..[MPPMT 1998]
0%
a) Non-cellulosic cell wall
0%
b) Uniflagellate zoospore
0%
c) Chlorophylle
0%
d) Sexual reproduction
Explanation
Answer : (a)
Q.43
RNA like particles that causes disease are … .. [ Pb PMT 2007]
0%
a) Virus
0%
b) Viroids
0%
c) Viruses
0%
d) Mycoplasma
Explanation
Answer : (b)
Q.44
Phylogenetic classification is based on … .. [ CBSE 1994]
0%
a) Utilitarian system
0%
b) Habits
0%
c) Overall similarities
0%
d) Common evolutionary descent
Explanation
Answer : (d)
Q.45
Viroid causes .. .. [ MPPMT 2007]
0%
a) Cauliflower mosaic
0%
b) Potato spindle mosaic
0%
c) Tobacco mosaic
0%
d) Tulip yellow mosaic
Explanation
Answer : (b)
Q.46
Cyanophyceae or blue-green algae possess … .. [ DPMT 1991]
0%
a) Definite nucleus but no plastid
0%
b) Definite plastid but no definite nucleus
0%
c) Definite nucleus and plastid
0%
d) Neither definite nucleus nor definite plastid
Explanation
Answer : (d)
Q.47
What is not true of retrovirus … .. [ CBSE 2004]
0%
a) DNA has no role in life cycle
0%
b) There is a gene for RNA dependent DNA polymerase
0%
c) Genetic material is RNA
0%
d) They are causative agent for certain cancers
Explanation
Answer : (a)
Q.48
Nostoc is … [ MPPMT 1999]
0%
a) Bacteriophage
0%
b) Beaded bacterium
0%
c) Cyanobacterium
0%
d) Parasite
Explanation
Answer : (c)
Q.49
Which is source of Vitamin B12 … [ AMU 2003]
0%
a) Pseudomonas
0%
b) Spirulina
0%
c) Nostoc
0%
d) Oscillatoria
Explanation
Answer : (b)
Q.50
Pasteurisation is carried out at … [ CPMT 2009]
0%
a) 30°C for 20 minutes
0%
b) 40°C for 30 minutes
0%
c) 30°C for 60 minutes
0%
d) 62°C for 30 minutes
Explanation
Answer : (d)
0 h : 0 m : 1 s
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
Report Question
×
What's an issue?
Question is wrong
Answer is wrong
Other Reason
Want to elaborate a bit more? (optional)
Support mcqgeeks.com by disabling your adblocker.
×
Please disable the adBlock and continue.
Thank you.
Reload page