NEET Biology Biological Classification MCQs Set B

Question. The five kingdom classification was given by : 
(a) Whittaker (1969)
(b) Linnaeus (1758)
(c) Copeland (1966)
(d) Haeckel (1866)

Answer: A

Question. Which one of the following is common to multicellular fungi, filamentous algae and protonema of mosses?
(a) Members of kingdom Plantae
(b) Mode of Nutrition
(c) Multiplication by fragmentation
(d) Diplontic life cycle

Answer: C

Question. The two bacteria found to be very useful in genetic engineering experiments are :
(a) Nitrosomonas and Klebsiella
(b) Escherichia and Agrobacterium
(c) Nitrobacter and Azotobacter
(d) Rhizobium and Diplococcus

Answer: B

Question. The bacterium (Clostridium botulinum) that causes botulism is :
(a) an obligate aerobe
(b) a fecultative anaerobe
(c) an obligate anaerobe
(d) a fecultative aerobe

Answer: C

Question. Curing of ten leaves is brought about by the activity of : 
(a) fungi
(b) bacteria
(c) micorrhizae
(d) viruses

Answer: B

Question. 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 beocme extensive and complex in phtosythesis bacteria.

Answer: D

Question. Which one of the following statements about mycoplasma is wrong? 
(a) They are pleomophic
(b) They are sensitive to penicillin
(c) They cause diseases in plants
(d) They are called PPLO

Answer: B

Question. Thermococcus, Methanococcus and Methanobacterium exemplify : 
(a) archaebacteria that contain protein homologous to eukaryotic core histones.
(b) archaebacteria that lack any histones resembling those found in eukaryotes but whose DNA is negatively supercoiled.
(c) bacteria whose DNA is relaxed or positively supercoiled but which have a cytoskeleton as well as mitochondria.
(d) bacteria that contain a cytoskeleton and ribosomes.

Answer: A

Question. Total parasites belongs to protozoan group 
(a) Sporozoa
(b) Ciliata
(c) Sarcodina
(d) Zooflagellata

Answer: A

Question. Beedle and Tatum gave 'one gene and one enzyme' hypothesis while working on
(a) Salmonelly typhimurium
(b) Neurospora crassa
(c) Eschericlia coli
(d) Diplococcus pneumoniae

Answer: B

Question. Which of the following pair belongs to basidiomycetes? 
(a) Puffballs and Claviceps
(b) Morchella and mushrooms
(c) Peziza and stink horns
(d) Bird's nest fungi and puffballs

Answer: D

Question. 'Ergot of rye' is caused by 
(a) Claviceps purpurea
(b) Sclerospora graminicola
(c) Cannabis sativa
(d) Algae and fungi

Answer: A

Question. Cellulose is a major component of cell walls of 
(a) Pythium
(b) Xanthomonas
(c) Pseudomonas
(d) Saccharomyces

Answer: A

Question. Trichoderma harziahum has proved a useful microorganism for 
(a) bioremediation of contaminated soils
(b) reclamation of wastelands
(c) gene transfer in higher plants
(d) biological control of soil-borne plant pathogens

Answer: D

Question. Which one is the wrong pairing for the disease and its causal organism? 
(a) Loose smut of wheat – Ustilago nuda
(b) Root know of vegetables – Meloidogyne sp
(c) Late blight of potato – Alternaria solani
(d) Black rust of wheat – Puccinia graminis

Answer: C

Question. Which one of the following has haplontic life cycle? 
(a) Ustilago
(b) Wheat
(c) Funaria
(d) Polytrichum

Answer: A

Question. Yeast is used in the production of : 
(a) Lipase and pectinase
(b) Bread and beer
(c) Cheese and butter
(d) Citric acid and lactic acid

Answer: B

Question. Which one of the following microbes forms symbiotic association with plants and helps them in their nutrition? 
(a) Aspergillus
(b) Glomus
(c) Trichodrma
(d) Azoiobacter

Answer: B

Question. Which statement is wrong for viruses ? 
(a) All of them have helical symmetry.
(b) They have ability to synthesize nucleic acids and proteins
(c) Antibiotic have no effect on them.
(d) All are parasites.

Answer: A

Question. There exist a close association between the alga and fungus within a lichen. The fungus :
(a) fixes the atmospheric nitrogen for the alga
(b) provides protection, anchorage and absorption for the alga
(c) provides food for the alga
(d) release oxygen for the alga

Answer: B

Question. Which of the following fungus can cause diseases in humans? 
(a) Penicillium
(b) Ustilago
(c) Puccinia
(d) Smut

Answer: A

Question. Red rot of sugarcane and white rust of radish are respectively caused by 
(a) Albugo candida and Cerospora
(b) Colletotrichum and Fusarium
(c) Pythium and Phytopthora
(d) Colletotrichum and Albugo candida

Answer: D

Question. The fungi in which sexual reproduction is absent or is under abnormal conditions is
(a) phycomycetes
(b) asomycetes
(c) basidiomycetes
(d) deuteromycetes

Answer: D

Question. Edible part of mushroom is 
(a) basidiocarp
(b) primary mucelium
(c) secondary mycelium
(d) tertiary mycelium

Answer: A

Question. VAM stands for 
(a) Vascular Arbuscular Mycorrihizae
(b) Vesicle Arbuscular Mycorrihizae
(c) Veremicular Arbuscular Mycorrihizae
(d) Vacuolar Arbuscular Mycorrihizae

Answer: A

Question. Ascomycetes are 
(a) club fungi
(b) algal fungi
(c) pin moulds
(d) sac fungi

Answer: D

Question. Genus Aspergillus and Claviceps belongs to
(a) phycomycetes
(b) ascomycetes
(c) basidiomycetes
(d) deuteromycetes

Answer: B

Question. Among rust, smut and mushroom all the three 
(a) all pathogens
(b) are saprobes
(c) bear ascocarbs
(d) bear basidiocarps

Answer: D

Question. In the following table identify the correct matching of the crop, its disease and the corresponding pathogen 

Answer: B

Question. Cell wall of fungi consists of 
(a) cellulose
(b) hemicellulose
(c) chitin
(d) both a and c

Answer: D

Question. Asperigillus niger is used for the manufacture of 
(a) citric acid and gluconic acid
(b) HCl and HNO₃
(c) fumaric and malic acid
(d) succinic and fumaric acid

Answer: A

Question. An organism with eukaryotic multicellular nature obtains its nutrition through its cell wall. It should be placed under 
(a) Mycota
(b) Plantae
(c) Animalia
(d) Monera

Answer: A

Question. The toxins released by plants to save themselves from fungal attack are 
(a) phytotoxins
(b) phytoalexins
(c) calmodulins
(d) aquaporins

Answer: B

Question. LSD is extracted from 
(a) Claviceps
(b) Cannabis
(c) Agaricus
(d) Amanita

Answer: A

Question. The pathoens for leaf spot disease in Arachis hypogea is
(a) Fusarium
(b) Cercosporia
(c) Alternaria
(d) Heminthosphorium

Answer: B

Question. Which of these is follose lichen 
(a) Cladonia
(b) Graphs
(c) Parmeia
(d) Lecanora

Answer: C

Question. The athlete's foot disease in humans is caused due to 
(a) bacteria
(b) fungi
(c) virus
(d) none of the above

Answer: B

Question. Sexual reproduction in fungi may occur by means of 
(a) sporangiospore, oospore and ascospore
(b) zoospore, oospore and ascospore
(c) sporangiospore, ascospore and basidiospore
(d) oospore, ascospore, basidiospore

Answer: D

Question. Lichens growing on tree bark are called
(a) Lignicolour
(b) Terricolous
(c) Corticolous
(d) Saxicolous

Answer: C

Question. Common mycobionts and phycobionts of lichen body are respectively
(a) Ascomycetes, Chlorophyceae
(b) Ascomycetes, Cyanophyceae
(c) Basidiomycetes, Chlorophyceae
(d) Basidiomycetes, Cyanophyceae

Answer: A

Question. Foliose lichhens are attached to the substratum at one or few places with the help of
(a) Branched, multicellular rhizoids
(b) Holdfast
(c) Rhizines
(d) Rhizomorph

Answer: C

Question. Specialised structure in the thallus of lichen for nitrogen fixation and retaining moisture is
(a) Cyphellae
(b) Isidia
(c) Cephalodia
(d) Soredia

Answer: C

Question. Which of the following feature is not related with virus ?
(a) Infectivity and host specificity
(b) Presence of genetic material
(c) Occurrence of certain enzymes
(d) Presence of respiration

Answer: D

Question. Most of the viruses are/ have
(a) Enveloped nucleo-protein structure
(b) Non-enveloped nucleo-protein structure
(c) Infectious protein particles
(d) Double stranded DNA as well as dsRNA

Answer: B

Question. Infectious RNA particles without protein coat
(a) Have high molecular weight
(b) Were discovered by Alper
(c) Known to cause disease in plants only
(d) More than one option is correct

Answer: C

Question. Pigment-containing membranous extensions in some cyanobacteria are :
(a) Basal bodies
(b) Pneumatophores
(c) Chromatophores
(d) Heterocysts

Answer: C

Question. Select the wrong statement: 
(a) Anisogametes differ either in structure, function or behaviour
(b) In Oomycetes female gamete is smaller and motile, while male gamete is larger and nonmotile
(c) Chlamydomonas exhibits both isogamy and anisogamy and Fucus shows oogamy
(d) Isogametes are similar in structure, function and behaviour

Answer: B

Question. Read the following statements (A-E) and answer the question which follows them.
(A) In liverworts, mosses, and ferns gametophytes are free-living
(B) Gymnosperms and some ferns are heterosporous.
(C) Sexual reproduction in Fucus, Volvox and Albugo is oogamou
(D)The sporophyte in liverworts is more elaborate than that in mosses
(E) Both, Pinus and Marchantia are dioecious
How many of the above statements are correct? 
(a) Two
(b) Three
(c) Four
(d) One

Answer: B

Question. Which of the following are likely to be present in deep sea water? 
(a) Eubacteria
(b) Blue-green algae
(c) Saprophytic fungi
(d) Archaebacteria

Answer: D

Question. The motile bacteria are able to move by : 
(a) cilia
(b) pili
(c) fimbriae
(d) flagella

Answer: D

Question. A location with luxuriant growth of lichens on the trees indicates that the: 
(a) location is highly polluted
(b) location is not polluted
(c) trees are very healthy
(d) trees are heavily infested

Answer: B

Question. Five kingdom system of classification sugested by R.H. Whittaker is not based on :
(a) Mode of nutrition
(b) Complexity of body orgnisation
(c) Presence of absence of a well defined nucleus.
(d) Mode of reproduction.

Answer: C

Question. Archaebacteria differ from eubacteria in : 
(a) Cell shape
(b) Mode of reproduction
(a) Cell membrane structure
(d) Mode of nutrition

Answer: C

Question. Viruses have : 
(a) Single chromosome
(b) Both DNA and RNA
(c) DNA enclosed in a protein coat
(d) Prokaryotic nucleus

Answer: C

Question. Which one of the following fungi contains hallucinogens? 
(a) Neurospora sp.
(b) Ustilago sp.
(c) Morchella esculenta
(d) Amanita muscaria

Answer: D

Question. Which of the following shows coiled RNA strand and capsomeres? 
(a) Measles virus
(b) Retrovirus
(c) Poliovirus
(d) Tobacco mosaic virus

Answer: D

Question. Which one of the following is not an inclusion body found in prokaryotes ? 
(a) Cyanophycean granule
(b) Glycogen granule
(c) Polysome
(d) Phosphate granule

Answer: C

Question. One of the major components of cell wall of most fungi is : 
(a) Hemicelluloses
(b) Chitin
(c) Peptidoglycan
(d) Cellulose

Answer: B

Question. Which one of the following statements is wrong ? 
(a) Phycomycetes are also called algal fungi.
(b) Cyanobacteria are also called blue-green algae.
(c) Golden algae are also called desmids.
(d) Eubacteria are also called false bacteria.

Answer: D

Question. Chrysophytes, Euglenoids, Dinoflagellates and slime moulds are included in the kingdom:
(a) Animalia
(b) Monera
(c) Protista
(d) Fungi

Answer: C

Question. Which one of the following is wrong for fungi? 
(a) They are both unicellular and multicellular.
(b) They are eukaryotic.
(c) All fungi possess a purely cellulosic cell wall.
(d) They are heterotrophic

Answer: C

Question. Methanogens belong to 
(a) Slime moulds
(b) Eubacteria
(c) Archaebacteria
(d) Dinoflagellates

Answer: C

Question. Select the wrong statement. 
(a) Diatoms are microscopic and float passively in water.
(b) The walls of diatoms are easily destructible.
(c) 'Diatomaceous earth' is formed by the cell walls of diatoms.
(d) Diatoms are chief producers in the oceans.

Answer: B

Question. An example of colonial alga is
(a) Chlorella
(b) Volvox
(c) Ulothrix
(d) Spirogyra

Answer: B

Question. Select the mismatch :
(a) Frankia - Alnus
(b) Rhodospirillum - Mycorrhiza
(c) Anabaena - nitrogen fixer
(d) Rhizobium - Alfalfa

Answer: B

Question. Which of the following components provides sticky character to the bacterial cell ?
(a) Cell wall
(b) Nuclear membrane
(c) plasma membrane
(d) Glycocalyx

Answer: D

Question. Life cycle of Ectocarpus and fucus respectively are : 
(a) Haplontic, Diplontic
(b) Diplontic, Haplodiplontic
(c) Haplodiplontic, Diplontic
(d) Haplodiplontic, Haplontic

Answer: C

Question. Which of the following is the correct scientific name of wheat derived by binominal nomenclature? 
(a) Triticum Vulgare
(b) Triticum aestivum
(c) Oryza sativa
(d) Zea mays

Answer: B

Question. Yeast is not included in protozoans but in fungi because 
(a) it has chlorophyll
(b) it shows saprotrophic mode of nutrition
(c) it has eukaryotic organization
(d) cell wall is made up of cellulose and reserve food materials as starch.

Answer: B