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Biological Classification

332 Questions Start Allen Test
All Exams Allen
Q226 Allen 6. (A) NCERT BASED QUESTIONS MCQ
Which group shows the most extensive metabolic diversity ?
A.
Plantae
B.
Animalia
C.
Monera
D.
Fungi
Q227 Allen 6. (A) NCERT BASED QUESTIONS MCQ
Archaebacteria differ from other bacteria in:-
A.
Nucleoid
B.
Composition of cell wall
C.
Composition of cytoplasm
D.
Composition of genetic material
Q228 Allen 6. (A) NCERT BASED QUESTIONS MCQ
Which group of organisms is responsible for the production of biogas from the dung of cows and buffaloes ?
A.
Methanomonas
B.
Methanogens
C.
Cyanobacteria
D.
Mycoplasma
Q229 Allen 6. (A) NCERT BASED QUESTIONS MCQ
Choose the correct statement :-
A.
Most of the bacteria are autotrophs
B.
All bacteria are heterotrophs
C.
Some bacteria are heterotrophs
D.
Most of the bacteria are heterotrophs
Q230 Allen 6. (A) NCERT BASED QUESTIONS MCQ
Which of the following character is common in both cyanobacteria and green plants ?
A.
Cell wall composition
B.
Presence of chlorophyll 'a'
C.
Presence of heterocyst
D.
Presence of 80s ribosome
Q231 Allen 6. (A) NCERT BASED QUESTIONS MCQ
Nostoc can fix atmospheric nitrogen in specialised cell, called :-
A.
Chromatophore
B.
Zoospore
C.
Heterocyst
D.
Oospore
Q232 Allen 6. (A) NCERT BASED QUESTIONS MCQ
Which process is not performed by bacterial activity?
A.
Production of antibiotics
B.
Fixing nitrogen in legumes
C.
Making curd from milk
D.
Production of pseudo mycelium
Q233 Allen 6. (A) NCERT BASED QUESTIONS MCQ
Choose the incorrect statement regarding Mycoplasma :-
A.
They lack cell wall
B.
They are smallest living cell
C.
They can survive without oxygen
D.
They have mesosome for respiration
Q234 Allen 6. (A) NCERT BASED QUESTIONS MCQ
Which are chief producers of oceans ?
A.
Diatoms
B.
Dinoflagellates
C.
Euglenoid
D.
Green algae
Q235 Allen 6. (A) NCERT BASED QUESTIONS MCQ
Which organism is responsible for making the sea appear red by rapid multiplication?
A.
Euglena
B.
Paramoecium
C.
Gonyaulax
D.
Trypanosoma
Q236 Allen 6. (A) NCERT BASED QUESTIONS MCQ
Euglenoids have a protein rich layer instead of a cell wall. This layer is called as :-
A.
Epidermis
B.
Skin
C.
Pellicle
D.
Middle layer
Q237 Allen 6. (A) NCERT BASED QUESTIONS MCQ
Choose the incorrect statement from following:
A.
Dinoflagellates have stiff cellulosic plates on the outer surface.
B.
Euglenoids have two flagella, one lies longitudinally and the other transversely.
C.
Slime mould spores are dispersed by air currents.
D.
In diatoms, the cell walls form two thin overlapping shells, which fit together as in a soap box.
Q238 Allen 6. (A) NCERT BASED QUESTIONS MCQ
Which group of organisms is used to make bread and beer?
A.
Rhizopus
B.
Yeast
C.
Albugo
D.
Neurospora
Q239 Allen 6. (A) NCERT BASED QUESTIONS MCQ
Fungus prefers to grow in :-
A.
Warm and humid places
B.
Cold and humid places
C.
Warm and cold both
D.
Warm, cold and humid places
Q240 Allen 6. (A) NCERT BASED QUESTIONS MCQ
In fungi when the hyphae are continuous and branched tubes and filled with multinucleated cytoplasm, these are called:-
A.
Unicellular hyphae
B.
Coenocytic hyphae
C.
Multicellular hyphae
D.
Both (1) and (3)
Q241 Allen 6. (A) NCERT BASED QUESTIONS MCQ
In fungi sexual reproduction is by :-
A.
Fragmentation, Ascospores and Basidiospores
B.
Budding, Conidia, and Basidiospores
C.
Oospores, Ascospores and Basidiospores
D.
Fission, Zoospores, Oospores BBC307
Q242 Allen 6. (A) NCERT BASED QUESTIONS MCQ
Mycelium of members of phycomycetes is:-
A.
Septate and coenocytic
B.
Aseptate and coenocytic
C.
Septate and multicellular
D.
Septate and unicellular
Q243 Allen 6. (A) NCERT BASED QUESTIONS MCQ
Choose the incorrect statement about phycomycetes :-
A.
Members are found in aquatic habitats
B.
Spores are endogenously produced in sporangium
C.
Zygospore is formed by reduction division
D.
Its members reproduce sexually may be isogamous, anisogamous or oogamous.
Q244 Allen 6. (A) NCERT BASED QUESTIONS MCQ
Which fungus is used extensively in biochemical and genetic work ?
A.
Agaricus
B.
Aspergillus
C.
Claviceps
D.
Neurospora
Q245 Allen 6. (A) NCERT BASED QUESTIONS MCQ
Choose the incorrect statement about ascomycetes :-
A.
Mycelium is branched and septate
B.
Sexual spores are produced endogenously .
C.
They have sac like structure in which karyogamy takes place.
D.
Reduction division occurs in fruiting bodies and form conidia.
Q246 Allen 6. (A) NCERT BASED QUESTIONS MCQ
Which group of organism is related with basidiomycetes ?
A.
Mushroom, Ustilago, Aspergillus
B.
Puffballs, Agaricus, Aspergillus
C.
Mushroom, Ustilago, Agaricus
D.
Ustilago, Aspergillus, Agaricus
Q247 Allen 6. (A) NCERT BASED QUESTIONS MCQ
Which set of diseases is caused by members of basidiomycetes ?
A.
Rust and smut
B.
Ergot and smut
C.
Ergot and rust
D.
Citrus canker and rust
Q248 Allen 6. (A) NCERT BASED QUESTIONS MCQ
Fungi imperfecti are called :
A.
members of phycomycetes
B.
members of ascomycetes
C.
members of basidiomycetes
D.
members of deuteromycetes
Q249 Allen 6. (A) NCERT BASED QUESTIONS MCQ
Which is not found in members of deuteromycetes ?
A.
Asexual reproduction
B.
Mode of nutrition
C.
Structure of mycelium
D.
Sexual reproduction
Q250 Allen 6. (A) NCERT BASED QUESTIONS MCQ
Which of the following are noncellular organisms that are characterized by having an inert crystalline structure outside the living cell:-
A.
Bacteria
B.
Mycoplasma
C.
Virus
D.
Lichen