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Quiz 7
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Q.1
Penicillin is got from an … [ CET Chd 2002]
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a) Alga
0%
b) Bacterium
0%
c) Fungus
0%
d) Dinoflagellate
Explanation
Answer : (c)
Q.2
Encysted, non-motile and non feeding infectious stage of Entamoeba histolytica is called …[ Pb PMT 2005]
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a) Schizont
0%
b) Zygote
0%
c) Abiotic form
0%
d) Minuta form
Explanation
Answer : (d)
Q.3
Symptoms of malaria in spleen and skin are due to …. [ BHU 1996]
0%
a) Schuffner’s granules
0%
b) Hemozoin
0%
c) Haematin
0%
d) Blood sugar
Explanation
Answer : (b)
Q.4
In Agaricus, the largest phase of nuclear condition is … [ Kerala 2001]
0%
a) n
0%
b) 2n
0%
c) n+n
0%
d) 3n
Explanation
Answer : (c)
Q.5
Rice blast is caused by … [ AMU 2002]
0%
a) Taphrina deformans
0%
b) Puccinia graminis
0%
c) Pyricularia oryzae
0%
d) Colletotrichum falcatum
Explanation
Answer : (c)
Q.6
Sporozoans have locomotory organs … [ CPMT 1991]
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a) Pseudopodia
0%
b) Cilia
0%
c) Flagella
0%
d) None of the above
Explanation
Answer : (d)
Q.7
Chromatid bodies occur in Entamoeba during
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a) Precyst stage
0%
b) Early cysts
0%
c) Tetranucleate systs
0%
d) Trophozoites
Explanation
Answer : (b)
Q.8
Which of the following group produces spores but does not possess vascular tissues
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a) Monocots
0%
b) Dicots
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c) Fungi
0%
d) Gymnosperms
Explanation
Answer : (c)
Q.9
Aflatoxicosis in poultry is due to …
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a) Candida albicans
0%
b) Penicillium notatum
0%
c) Aspergillus flavus
0%
d) Aspergillus fumigates
Explanation
Answer : (c)
Q.10
Red rot of Sugarcane is produced by …. [ MPPMT 2011]
0%
a) Phytophthora
0%
b) Cercospora
0%
c) Albugo
0%
d) Colletotrichum
Explanation
Answer : (d)
Q.11
Aflatoxins are produced by ….[MPPMT 2012]
0%
a) Viruses
0%
b) Bacteria
0%
c) Fungi
0%
d) Nematodes
Explanation
Answer : (c)
Q.12
All protozoans possess … [ Odisha 2005]
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a) Holozoic nutrition
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b) Contractile vacuole
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d) Pseudopodia
0%
d) Eukaryotic organization
Explanation
Answer : (d)
Q.13
Pick the odd one … [ AMU 2003]
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a) Sunflower
0%
b) Ross
0%
c) Hibiscus
0%
d) Rock Flower
Explanation
Answer : (d)
Q.14
Amoebic dysentery is caused by …. [ MPPMT 1995]
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a) Entamoeba histolytica
0%
b) Entamoeba gingivalis
0%
c) Entamoeba coli
0%
d) Amoeba proteus
Explanation
Answer : (a)
Q.15
Puccinia graminis tritici causes …[ Chd CET 2012]
0%
a) Brown rust
0%
b) White rust
0%
c) Yellow rust
0%
d) Black rust
Explanation
Answer : (d)
Q.16
Life cycle of Plasmodium species causing benign tertiary malaria consists of … [ AMU 2001]
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a) Erythrocytic cycle
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b) Post-erythrocytic cycle
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c) Pre-erythrocytic cycle
0%
d) All the above
Explanation
Answer : (d)
Q.17
Ustilago caused plant diseases are called smuts because … [ CBSE 1994]
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a) They parasitised cereals
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b) Mycelium is black
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c) They develop sooty masses of spores
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d) Affected parts become completely black
Explanation
Answer : (d)
Q.18
Which one of the following is a unicellular on-motile desmid … [ KCET 2010]
0%
a) Chlorobium
0%
b) Chromatium
0%
c) Clostridium
0%
d)Cosmarium
Explanation
Chargaff's rules First parity rule The first rule holds that a double-stranded DNA molecule globally has percentage base pair equality: %A = %T and %G = %C. The rigorous validation of the rule constitutes the basis of Watson-Crick pairs in the DNA double helix model. Second parity rule The second rule holds that both %A = %T and %G = %C are valid for each of the two DNA strands. This describes only a global feature of the base composition in a single DNA strand. Answer : (d)
Q.19
In Plasmodium, diploid stage is ….
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a) Oocyst
0%
b)Gamont
0%
c) Schizont
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d) Sporozoite
Explanation
Answer : (a)
Q.20
Fungi differ from other kingdoms is being … [ DPMT 2001]
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a) Unicellular consumers
0%
b) Unicellular decomposers
0%
c) Multicellular consumers
0%
d) Multicellular decomposers
Explanation
Answer : (d)
Q.21
Protozoan protists are differentiated on the basis of … [ AIIMS 1999]
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a) Nuclei
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b) Size
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c) Shape
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d) Locomotory structures
Explanation
Answer : (d)
Q.22
Commercial source of manufacture of citric acid is … [ CBSE 1995]
0%
a) Citrus fruits
0%
b) Aspergillus
0%
c) Bacteria
0%
d) Penicillium
Explanation
Answer : (b)
Q.23
Which of the following is a flagellated protozoan .. [ kerala 2010]
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a) Amoeba
0%
b) Entamoeba
0%
c) Trypanosoma
0%
d) Paramoecium
Explanation
Answer : (c)
Q.24
Which one represents class Mastigophora? [ MPPMT 2001]
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a) Paramaecium
0%
b) Amoeba
0%
c) Monocystis
0%
d) Trypanosoma
Explanation
Protozoa ( of Kingdom Protoctista or Protista ) are classified into 4 classes: 1)Class Rhizopoda or Sarcodina (Amoeboid protozoans), 2)Class Mastigophora or Flagellata (Flagellated protozoans), 3)Class Ciliata (Ciliated protozoans), 4)Class Sporozoa (infectious spore like stage having members in their lifecycle ) Paramoecium-Ciliated protozoan Amoeba - Rhizopoda or Sarcodina or amoeboid protozoan Monocystis - Sporozoa Trypanosoma - MASTIGOPHORA or Flagellata. Explanation provided by S. Gokhulavasan Answer : (d)
Q.25
Fungus Rhizopus resembles moss in having … [ AMU 2002]
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a) Hyphae
0%
b) Mycelium
0%
c) Spores
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d) Archegonia
Explanation
Answer : (c)
Q.26
Infective stage of Entamoeba histolytica is … [ BHU 2002]
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a) Trophozoite
0%
b) Pre-cyst
0%
c) Enucleation cyst
0%
d) Tetranucleate cyst
Explanation
Answer : (d)
Q.27
Carnivorous fish Gambusia introduced in water bodies for controlling a deadly disease feeds on larvae of …. [ AIIMS 1997]
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a) Dragonfly
0%
b) Anopheles
0%
c) Nephantis
0%
d) All the above
Explanation
Answer : (b)
Q.28
An edible sac fungus is … [ kerala 2002]
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a) Lycoperdon
0%
b) Agaricus
0%
c) Morchella
0%
d) Rhizopus
Explanation
Answer : (c)
Q.29
Sporozoites of Plasmodium are formed in …[ AFMC 1998]
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a) Gametocytes
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b) Oocysts
0%
c) Sporoblasts
0%
d) Trophozoites
Explanation
Answer : (b)
Q.30
Covered smut of Sorghum is caused by … [ BHU 2002]
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a) Sphacelotheca cruenta
0%
b) Sphaelotheca reiliana
0%
c) Sphaelotheca sorghi
0%
d) Tolyposporium ehrenbergii
Explanation
Answer : (c)
Q.31
Common malaria parasite of India is …[ AMU 2000]
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a) Plasmodium falciparum
0%
b) P.vivax
0%
c) P.ovale
0%
d) P. malariae
Explanation
Answer : (b)
Q.32
Puccinia graminis tritici causes …[ Chd CET 2012]
0%
a) Brown rust
0%
b) White rust
0%
c) Yellow rust
0%
d) Black rust
Explanation
Answer : (d)
Q.33
Clamp connections are found in …. [ BHU 2006]
0%
a) Ascomycetes
0%
b) Zygomycetes
0%
c) Saccharomycetes
0%
d) Basidiomycetes
Explanation
Answer : (d)
Q.34
Locomotory organs are absent in … [ Bih PMT 2001]
0%
a) Sporozoa
0%
b) Ciliates
0%
c) Zooflagellates
0%
d) Rhizopods
Explanation
Answer : (a)
Q.35
An ascomycetous fungus is ….[ KCET 2002]
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a) Agaricus
0%
b) Phytophthora
0%
c) Yeast
0%
d) Pleurotes
Explanation
Answer : (c)
Q.36
Sporogony in malarial parasite occurs in … [ BHU 1996]
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a) Human liver
0%
b) Human red blood cells
0%
c) Stomach of female Anopheles
0%
d) Stomach wall of female Anopheles
Explanation
Answer : (d)
Q.37
Amoeba stops producing pseudopodia during … [ Har PMT 2001]
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a) Alkaline condition
0%
b) Starvation
0%
c) Acidic condition
0%
d) Touch
Explanation
Answer : (b)
Q.38
Which one of the following is antifungal antibiotic? [ JIPMER 2004]
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a) Streptomycin
0%
b) Aureomycin
0%
c) Griseofulvin
0%
d) Chloromycetin
Explanation
Answer : (c)
Q.39
Which one is not a symptom of Entamoeba histolytica infection? … [ BHU 1996]
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a) Relapsing fever
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b) Abdominal pain
0%
c) Blood in stool
0%
d) Irregular bowls
Explanation
Answer : (a)
Q.40
Cyst wall of Euglena is formed of ….
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a) Silica
0%
b) Carbohydrate
0%
c) Proteins
0%
d) Calcium
Explanation
Answer : (b)
Q.41
Assertion : the fungi are wide spread in distribution and they even live on or inside other plants and animals. Reason: Fungi are able to grow anywhere on land, water or on other organisms because they have a variety of pigments including chlorophyll, carotenoids, fucoxanthin and phycoerythrin
0%
a) If both the assertion and reason are true and reason explains the assertion
0%
b) If both the assertion and reason are true but reason does not explain the assertion.
0%
c) If assertion is true but reason is false
0%
d) If assertion is false but reason is true.
Explanation
Answer : (c)
Q.42
Marine protozoans lack contractile vacuole because … [ DPMT 2001]
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a) Their body cannot accommodate it
0%
b) They are hypoosmotic to their environment
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c) They are isotonic with their environment
0%
d) Osmoregulation is done by cell membrane
Explanation
Answer : (b)
Q.43
A eukaryotic group which causes serious plant diseases comes under … [ CPMT 2007]
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a) Monera
0%
b) Fungi
0%
c) Mid rib
0%
d) Leaf margin
Explanation
Answer : (c)
Q.44
Which protistans shows bioluminescence … [ BHU 2003]
0%
a) Euglena
0%
b) Noctiluca
0%
c) Foraminiferans
0%
d) Diatoms
Explanation
Answer : (b)
Q.45
Fruiting body formed from a filamentous, heterotrophic organism which is known for its nutritive value for humans is ….
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a) Cremocarp
0%
b) Acervulus
0%
c) Basidiocarp
0%
d) Akinete
Explanation
Answer : (c)
Q.46
Amoeba touched with needle will … [ RPMT 2005]
0%
a) Die
0%
b) Divide quickly
0%
c) Develop pseudopodia
0%
d) Move away
Explanation
Answer : (d)
Q.47
Contractile vacuole is not found in … [ AFMC 2004]
0%
a) Sarcodina
0%
b) Sporozoa
0%
c) Zooflagellata
0%
d) Slime mould
Explanation
Answer : (b)
Q.48
Female Anopheles is … [ AMU 2002]
0%
a) Endogenous host for Plasmodium
0%
b) Exogenous host for Plasmodium
0%
c) Initial host for Plasmodium
0%
d) Both a and b
Explanation
Answer : (b)
Q.49
Which are mostly anaerobic? [ AMU 2005]
0%
a) Algae
0%
b) Mosses
0%
c) Fungi
0%
d) All the above
Explanation
Answer : (c)
Q.50
In Amoeba cytoplasmic water/osmolarity is controlled by … [ RPMT 2002]
0%
a) Food vacuole
0%
b) Contractile vacuole
0%
c) Body surface
0%
d) Pseudopodia
Explanation
Answer : (b)
0 h : 0 m : 1 s
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