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Biological Classification

332 Questions Start Allen Test
All Exams Allen
Q276 Allen 7. (B) ANALYTICAL QUESTIONS MCQ
Barophilic prokaryotes :
A.
occur in water containing high concentrations of barium hydroxide.
B.
readily grow and divide in sea water enriched in any soluble salt of barium
C.
grow and multiply in very deep marine sediments
D.
grow slowly in highly alkaline frozen lakes at high altitudes
Q277 Allen 7. (B) ANALYTICAL QUESTIONS MCQ
Auxospores and hormocysts are formed, respectively, by :
A.
Several diatoms and a few cyanobacteria
B.
Some diatoms and several cyanobacteria
C.
Several cyanobacteria and several diatoms
D.
Some cyanobacteria and many diatoms
Q278 Allen 7. (B) ANALYTICAL QUESTIONS MCQ
Which of the following is non-cellular organism?
A.
Bacteria
B.
Fungi
C.
Algae
D.
Virus
Q279 Allen 7. (B) ANALYTICAL QUESTIONS MCQ
Find the incorrect match :-
A.
Ustilago - belongs to class basidiomycetes
B.
Agaricus - belongs to class basidiomycetes
C.
Trichoderma - sexual cycle is found
D.
Alternaria - sexual cycle is not found
Q280 Allen 7. (B) ANALYTICAL QUESTIONS MCQ
Find the incorrect statement about fungi :-
A.
They show a great diversity in morphology and habitats
B.
Fungi are cosmopolitan and occur in air, water, soil and as parasites also
C.
They prefer to grow in cold and dry places
D.
With the exception of yeasts, fungi are filamentous
Q281 Allen 7. (B) ANALYTICAL QUESTIONS MCQ
Find the correct statements about fungi :-
(A) Most of the fungi are saprophytes (B) Fungi can also survive as symbionts (C) Sexual reproduction in fungi involves three steps (D) Reduction division in fungi occurs in fruiting bodies which forms haploid spores
A.
A, B are correct
B.
C, D are correct
C.
A, B & C are correct
D.
A, B, C & D are correct
Q282 Allen 7. (B) ANALYTICAL QUESTIONS MCQ
Choose the incorrect statement regarding decomposer :-
A.
They may be prokaryotes or eukaryotes.
B.
They may be unicellular or multicellular
C.
They convert inorganic into organic compounds
D.
They play a great role in ecology
Q283 Allen 7. (B) ANALYTICAL QUESTIONS MCQ
With respect to fungal sexual cycle, what is the correct sequence ?
A.
Karyogamy, plasmogamy & meiosis
B.
Meiosis, plasmogamy & karyogamy
C.
Plasmogamy, karyogamy & meiosis
D.
Meiosis, karyogamy & plasmogamy
Q284 Allen 7. (B) ANALYTICAL QUESTIONS MCQ
In prokaryotes, chromatophores are –
A.
Specialized granules responsible for colouration of cells
B.
Structures responsible for organizing the shape of the organism
C.
Inclusion bodies lying free inside the cells for carrying out various metabolic activities
D.
Internal membrane systems that may become extensive and complex in photosynthetic bacteria
Q285 Allen 7. (B) ANALYTICAL QUESTIONS MCQ
All eukaryotic unicellular organisms belong to-
A.
Monera
B.
Protista
C.
Fungi
D.
Bacteria
Q286 Allen 7. (B) ANALYTICAL QUESTIONS MCQ
The five kingdom classification was proposed by-
A.
R.H. Whittaker
B.
C.Linnaeus
C.
A. Roxberg
D.
Virchow
Q287 Allen 7. (B) ANALYTICAL QUESTIONS MCQ
Organisms living in salty areas are called as
A.
Methanogens
B.
Halophiles
C.
Heliophytes
D.
Thermoacidophiles
Q288 Allen 7. (B) ANALYTICAL QUESTIONS MCQ
Naked cytoplasm, multinucleated and saprophytic are the characteristics of :
A.
Monera
B.
Protista
C.
Fungi
D.
Slime molds
Q289 Allen 7. (B) ANALYTICAL QUESTIONS MCQ
An association between roots of higher plants and fungi is called-
A.
Lichen
B.
Fern
C.
Mycorrhiza
D.
BGA
Q290 Allen 7. (B) ANALYTICAL QUESTIONS MCQ
A dikaryon is formed when
A.
Meiosis is arrested
B.
The two haploid nuclei do not fuse immediately
C.
Cytoplasm does not fuse
D.
None of the above
Q291 Allen 7. (B) ANALYTICAL QUESTIONS MCQ
Contagium vivum fluidum was proposed by
A.
D.J. Ivanowsky
B.
M.W. Beijerinek
C.
Stanley
D.
Robert Hook
Q292 Allen 7. (B) ANALYTICAL QUESTIONS MCQ
Mycobiont and Phycobiont are found in
A.
Mycorrhiza
B.
Root
C.
Lichens
D.
BGA
Q293 Allen 7. (B) ANALYTICAL QUESTIONS MCQ
Difference between Virus and Viroid is
A.
Absence of protein coat in viroid but present in virus
B.
Presence of low molecular weight RNA in virus but absent in viroid
C.
Both (1) and (2)
D.
None of the above
Q294 Allen 7. (B) ANALYTICAL QUESTIONS MCQ
The following features belong to class
(A) Asexual reproduction by zoospores or aplanospores. (B) Fusion of gametes may be isogamous, anisogamous or oogamous. (C) Mycelium is aseptate and coenocytic. (D) Spores are endogenously produced in sporangium.
A.
Ascomycetes
B.
Deuteromycetes
C.
Phycomycetes
D.
Basidiomycetes
Q295 Allen 7. (B) ANALYTICAL QUESTIONS MCQ
Viruses are non-cellular organisms but replicate themselves once they infect the host cell. To which of the following kingdom do viruses belong to?
A.
Monera
B.
Protista
C.
Fungi
D.
None of the above
Q296 Allen 7. (B) ANALYTICAL QUESTIONS MCQ
Members of phycomycetes are found in i. Aquatic habitats ii. On decaying wood iii. Moist and damp places iv. As obligate parasites on plants Choose from the following options
A.
None of the above
B.
i and iv
C.
ii and iii
D.
All of the above
Q297 Allen 7. (B) ANALYTICAL QUESTIONS MCQ
Cyanobacteria are classified under
A.
Protista
B.
Plantae
C.
Monera
D.
Algae
Q298 Allen 7. (B) ANALYTICAL QUESTIONS MCQ
Fusion of two gametes which are dissimilar in size is termed as
A.
Oogamy
B.
Isogamy
C.
Anisogamy
D.
Zoogamy
Q299 Allen 7. (B) ANALYTICAL QUESTIONS MCQ
Which of the following criterion was not used for classification of fungi?
A.
Structure of mycelium
B.
Structure of fruiting body
C.
Complexity of cell wall
D.
Mode of spore formation
Q300 Allen 7. (B) ANALYTICAL QUESTIONS MCQ
In which kingdom would you classify the archaebacteria and nitrogen-fixing organisms. If the five-kingdom system of classification is used ?
A.
Monera
B.
Plantae
C.
Fungi
D.
Protista