Biology MCQ (Multiple Choice Questions) - SchoolingAxis

Biology MCQ (Multiple Choice Questions)

 Que- Approximately _____ species of bacteria are known to cause diseases in humans. 

a. 100.0 

b. 200.0 

c. 300.0 

d. 400.0 


Answer- 200.0


Que- Who first separated bacteria from other protists as a group? 

a. John Hogg 

b. Ernst Haeckel 

c. Margulis and Schwartz 

d. Herbert Copeland 


Answer- Herbert Copeland


Que- Which of the protozoa has a striking resemblance to collar cells in sponges? 

a. Zooflagellates 

b. Choanflagellates 

c. Trypanosomoa 

d. Trichonymphas 


Answer- Choanflagellates


Que- Radiolarians belong to which of the following protozoal group? 

a. Zooflagellates 

b. Actinopods 

c. Foraminifera 

d. Apicomplexans 


Answer- Actinopods


Que- Which of the following statement about eiliates in incorrect? 

a. Contain mainly unicellular organisms. 

b. Their contractile vacoule is respobsible for water regulation. 

c. They are even capable of sexual reproduction. 

d. Diploid nucleus being smaller is responsible for cells metabolism and growth while polyploidy nucleus functions in sexual process. 


Answer- Diploid nucleus being smaller is responsible for cells metabolism and growth while polyploidy nucleus functions in sexual process.


Que- Lime stone deposits are formed from 

a. Zooflagellates 

b. Foraminferans 

c. Aetinopods 

d. Apicomplexans 


Answer- Foraminferans


Que- Plasmodium belongs to 

a. Ciliates 

b. Apicomplexans 

c. Actinopods 

d. Foraminferans 


Answer- Apicomplexans


Que- Kingdom protista includes ______ phyla 

a. 27.0 

b. 28.0 

c. 26.0 

d. 29.0 


Answer- 27.0


Que- Stentor is a/an 

a. Ciliate 

b. Foraniniferan 

c. Actinopods 

d. Apicomplexan 


Answer- Ciliate


Que- Complex specialized flagellates living symbiotically in the gut of termites are 

a. Trichonymphas 

b. Trypanosoma 

c. Euglena 

d. Radiolarians 


Answer- Trichonymphas


Que- The drfinite shape to ciliates is given by 

a. Pellicle 

b. Penicle 

c. Calcium 

d. Cell wall 


Answer- Pellicle


Que- Chalk is gradually formed of dead 

a. Actinopods 

b. Foraminiferans 

c. Apicomplexans 

d. Radiolarians 


Answer- Foraminiferans


Que- Of the following which one has glassy shells? 

a. Radiolarians 

b. Forams 

c. Both of these 

d. None of these 


Answer- Radiolarians


Que- Which of the following statement is incorrect about algae? 

a. Their zygote unlike plants is protected by parental tissue. 

b. Their classification is based on pigment composition. 

c. Most of them have different morphological forms in-different stages of their life cycle. 

d. Almost all of them are aquatic. 


Answer- Their zygote unlike plants is protected by parental tissue.


Que- In which of the following pigments major energy reserves and cell wall are like plants? 

a. Rhodophyta 

b. Chlorophyta 

c. Phaeophyta 

d. Chrysophyta 


Answer- Chlorophyta


Que- Most of the photosynthesis on earth is carried by 

a. Kelps 

b. Gymnosperms 

c. Angiosperms 

d. Algae 


Answer- Algae


Que- The only group of algae having no flagellated motile cells at any stage is : 

a. Chrysophyta 

b. Phaeophyta 

c. Pyrrophyta 

d. Rhodophyta 


Answer- Rhodophyta


Que- Brown algae are also known as 

a. Phaeophyta 

b. Rhodophyta 

c. Pyrrophyta 

d. Chrysophyta 


Answer- Phaeophyta


Que- Golden algae are also known as 

a. Chrysophyta 

b. Phaeophyta 

c. Pyrrophyta 

d. Rhodophyta 


Answer- Chrysophyta


Que- Based on molecular data euglenoids are thought to be closely related to 

a. Dinoflagellates 

b. Zooflagellates 

c. Protozoans 

d. Algae 


Answer- Zooflagellates


Que- All phostosynthetic euglenoids lose their chlorophyll when grown in dark and obtain their nutrients heterotrophically this statement is 

a. TRUE 

b. FALSE 

c. May be true may be false 

d. Unpredictable 


Answer- FALSE


Que- Most dinoflagellates are 

a. Unicellular 

b. Multicellular 

c. Both of these 

d. Zooflagellates 


Answer- Unicellular


Que- The most important group of producers in marine ecosystem is of 

a. Diatoms 

b. Euglenoids 

c. Dinoflagellates 

d. Brown algae 


Answer- Diatoms


Que- Of the following which one is not the characteristic of dinoflagellates 

a. Most of them are unicellular 

b. They have blooms 

c. Their cells are often covered with shells of interlocking cellulose plates impregnated with calcium 

d. None of these 


Answer- Their cells are often covered with shells of interlocking cellulose plates impregnated with calcium


Que- Examples of Rhodophytes are 

a. Chondrus 

b. Polysiphonia 

c. Both of these 

d. Pinnularia 


Answer- Both of these


Que- In chlorophytes the main energy stores are 

a. Cellulose 

b. Starch 

c. Glycogen 

d. All of these 


Answer- Starch


Que- Of the following which one is not the characteristic of green algae? 

a. Some green algae possess cell wall with cellulose 

b. They are generally accepted as the ancestors of green plants 

c. Chlorella is unicellular non-motile green algae 

d. None of these 


Answer- Some green algae possess cell wall with cellulose


Que- In slime molds spores develop into 

a. Swarm cells 

b. Biflagellated cells 

c. Amoeboid reproductive cells 

d. All of these 


Answer- All of these


Que- Spores produced by slime molds are 

a. Haploid 

b. Diploid 

c. Triploid 

d. None of these 


Answer- Haploid


Que- Which of the following is responsible for Irish potato famine? 

a. Dinoflagellates 

b. Kleps 

c. Physarum polycephalum 

d. Phytophthora infestans 


Answer- Phytophthora infestans


Que- How many species of fungi are known till now 

a. 10000.0 

b. 100000.0 

c. 1.0E7 

d. 1000.0 


Answer- 100000.0


Que- Which of the following group represent pathological fungi? 

a. Mushrooms morels and truffles 

b. Rusts smuts and molds 

c. Penicillium 

d. All of these 


Answer- Rusts smuts and molds


Que- Which one of the following is different from all the rest regarding the number of cells inits body? 

a. Rusts 

b. Mushrooms 

c. Molds 

d. Yeasts 


Answer- Yeasts


Que- Fungi which get their food directly from dead organic matter are called? 

a. Parasitic fungi 

b. Predators 

c. Mutualists 

d. Decomposers 


Answer- Decomposers


Que- Root like structure in saprotrophic fungi are called 

a. Rhizodis 

b. Haustoria 

c. Hyphae 

d. Constricting rings 


Answer- Rhizodis


Que- Those fungi which can grow only on their living host and cannot be grown on available defined growth culture medium e.g. various mildews and most rust species are called 

a. Parasitic fungi 

b. Obligate parasitic fungi 

c. Facultative parasitic fungi 

d. All of these 


Answer- Obligate parasitic fungi


Que- Oyster mushroom is an example of predator fungi which attack on 

a. Pin warms 

b. Tape worms 

c. Round worms 

d. Platehelminthes 


Answer- Round worms


Que- Lichen is a symbiotic mutualistic association of fungi with 

a. Autotrophs 

b. Roots of vascular plants 

c. Green algae and cyanobacterium 

d. Leguminous plants 


Answer- Green algae and cyanobacterium


Que- Foliose lichen are 

a. Stem like 

b. Branching 

c. Leaf like 

d. Crust like 


Answer- Leaf like


Que- An association in which fungal hyphae penetrate the outer cells of the plant root forming coils swellings and minute branches and also extend out into surrounding soil is called: 

a. Mycorrizael association 

b. Endomycorrhizae 

c. Ectomycorrhizae 

d. Lichen 


Answer- Ectomycorrhizae


Que- The Kingdom of recyclers is known as kingdom 

a. Algae 

b. Bacteria 

c. Fungi 

d. Embryophata 


Answer- Fungi


Que- According to two kingdom classification fungi were placed in kingdom 

a. Plantae 

b. Animalia 

c. Protista 

d. Fungi 


Answer- Plantae


Que- Ecological role of fungi as decomposers is only paralleled by 

a. Cyanobacteria 

b. Blue green algae 

c. Bacteria 

d. Virus 


Answer- Bacteria


Que- Coenocytic hyphae are also known as 

a. Septate 

b. Perforated hyphae 

c. Aseptate 

d. Uninucleate hyphae 


Answer- Aseptate


Que- Unicellular fungi which is non-hyphal is 

a. Mushroom 

b. Yeast 

c. Penicillium 

d. Mold 


Answer- Yeast


Que- Parasitic fungi absorb nutrients directly from the living host cytoplasm with the help of special hyphal tips called 

a. Mildew 

b. Constricting ring 

c. Haustoria 

d. All of these 


Answer- Haustoria


Que- Constricting ring around nematode is formed by 

a. Arthrobotrys 

b. Pleurotus ostreatus 

c. Mildews 

d. All of these 


Answer- Arthrobotrys


Que- Type of lichen which tightly attaches to rocks is 

a. Parmelia 

b. Fruticose 

c. Foliose 

d. Crustose 


Answer- Crustose


Que- Mycorrhizae are found in about ______ vascular plants 

a. 0.9 

b. 0.95 

c. 0.98 

d. 0.96 


Answer- 0.95


Que- Fungi can tolerate pH from 

a. 3?7 

b. 2?6 

c. 2?9 

d. 3?6 


Answer- 2?9


Que- Spores in sporangia are produced by process. 

a. Sexual 

b. Asexual 

c. Both of these 

d. None of these 


Answer- Asexual


Que- Which of the following statement is incorrect about asexual reproduction by spores in fungi? 

a. Spores are haploid structures 

b. They are dispersed via wind water and insects 

c. On falling to a suitable place they germinate 

d. These are produced through fruiting bodies like ascocarps and basidiocarps. 


Answer- These are produced through fruiting bodies like ascocarps and basidiocarps.


Que- Simple breaking of mycelium resulting in formation of a new mycelium from each broken segments is called 

a. Sporing 

b. Conidiation 

c. Budding 

d. Fragmentation 


Answer- Fragmentation


Que- By which of the following mechanism unicellular yeast reproduce? 

a. Sporing 

b. Conidiation 

c. Budding 

d. Fragmentation 


Answer- Budding


Que- In which of the following example of fungi dikaryotic hyphae exist for long period? 

a. Deuteromycota 

b. Basidiomycota 

c. Zygomycota 

d. All of these 


Answer- Basidiomycota


Que- Which of the following is called black bread mold? 

a. Pilobolus 

b. Penicillium 

c. Neurospora 

d. Rhizopus 


Answer- Rhizopus


Que- At which stage in the life cycle of Rhizopus meiosis takes place? 

a. Formation of sporangiophore via germination of zygospore. 

b. Formation of spores in sporangia 

c. Fusion of two hyphae 

d. Formation of Zygote by fusion of gametangia. 


Answer- Formation of sporangiophore via germination of zygospore.


Que- Which one of the following is the largest group of fungi? 

a. Zygomycota 

b. Ascomycota 

c. Basidiomycota 

d. Deuteromycota 


Answer- Ascomycota


Que- How many species of ascomycota occur in lichen symbiotic association? 

a. 0.3 

b. 0.4 

c. 0.5 

d. 0.6 


Answer- 0.5


Que- All such fungi in which sexual phase has not been observed are present in 

a. Zygomycota 

b. Ascomycota 

c. Basidiomycota 

d. Deuteromycota 


Answer- Deuteromycota


Que- Mode of nutrition in penecillium is 

a. Saprotrophs 

b. Parasitic 

c. Predators 

d. Mutualistics 


Answer- Saprotrophs


Que- Penicillium reproduce via 

a. Spores 

b. Conidia 

c. Budding 

d. Fragmentation 


Answer- Conidia


Que- How many species of mushrooms are edible? 

a. 100.0 

b. 200.0 

c. 3000.0 

d. 4000.0 


Answer- 200.0


Que- Death cap/death angel (Amanita) and Jack O Latern mushroom are examples of 

a. Edible mushrooms 

b. Poisonous mushrooms 

c. Both of these 

d. None of these 


Answer- Poisonous mushrooms


Que- Which of the following statement about plants is incorrect? 

a. All are eukaryotes 

b. They are multicellular. 

c. Non-motile organisms 

d. Are heterotrophes 


Answer- Are heterotrophes


Que- Bryophtes are called amphiabians of plant world because 

a. Bryophytes like amphibian ancestors are one of the most primitive organisms in this world. 

b. Bryophytes like amphibian live in damp shady places and close to water body. 

c. Amphibians have close relation with bryophytes in their habitat. 

d. All of these 


Answer- Bryophytes like amphibian live in damp shady places and close to water body.


Que- Hornwarts are included in sub-class 

a. Anthoceropsida 

b. Bryopsida 

c. Hepaticopsida 

d. Psilopsida 


Answer- Anthoceropsida


Que- Horsetails are included in class 

a. Sphenopeida 

b. Lycopsida 

c. Psilopsida 

d. Pteropsida 


Answer- Sphenopeida


Que- Antheridia and archegonia are born on _____ in bryophytes 

a. Sporophyte 

b. Gametophyte 

c. Both of these 

d. None of these 


Answer- Gametophyte


Que- In bryophytes fertilization takes place in 

a. Antheridia 

b. Archegonia 

c. water 

d. Ovule 


Answer- Archegonia


Que- Antherozoids the male gamete in bryophytes are attracted towards Archegonium i.e. female sex organ by 

a. Phototactic phenomenon 

b. Chemotactic phenomenon 

c. Geotropic phenomenon 

d. Chemotropic movement 


Answer- Chemotactic phenomenon


Que- Which of the following of bryophytes are the simplest one? 

a. Porella 

b. Funaria 

c. Anthocerus 

d. Polytrichum 


Answer- Porella


Que- The zygote formed in liverworts is 

a. Unicellular 

b. Mulicellular 

c. Multinucleate 

d. None of these 


Answer- Unicellular


Que- Sporophyte is 

a. Monoploid 

b. Haploid 

c. Diploid 

d. Polyploidy 


Answer- Diploid


Que- Mosses are included in sub-division 

a. Anthoceropsida 

b. Hepaticopsida 

c. Bryopsida 

d. Lycopsida 


Answer- Bryopsida


Que- Ferns are included in 

a. Psilopsida 

b. Lycopsida 

c. Sphenopsida 

d. Pteropsida 


Answer- Pteropsida


Que- The simplest of all bryophytes are 

a. Thallophytes 

b. Embryophytes 

c. Mosses 

d. Liverworts 


Answer- Liverworts


Que- Antheridiophore and archegoniophore are found in 

a. Marchantia 

b. Funaria 

c. Both of these 

d. None of these 


Answer- Both of these


Que- Protonema is 

a. Thallus like 

b. Algae like 

c. Fungus like 

d. Plant like 


Answer- Algae like


Que- Of the following which one is most advanced ? 

a. Anthoceropsida 

b. Bryopsida 

c. Hepaticopsida 

d. None of these 


Answer- Anthoceropsida


Que- In Hornworts the band of meristematic tissue is found near 

a. Foot 

b. Gamete producing region 

c. Spore producing region 

d. At junction of a & b 


Answer- At junction of a & b


Que- The part of sporophyte which is called sporangium is 

a. Capsule 

b. Foot 

c. Stalk 

d. None of these 


Answer- Capsule


Que- The first cell of the sporophyte generation is 

a. Oospore 

b. Spore mother cell 

c. Spore 

d. Gamete 


Answer- Oospore


Que- Stem of Psilophyton an example of psilogsida is differentiated into an underground rhizome and an aerial part both of which are _____ branched 

a. Isotomous 

b. Dichotomously 

c. Trichotomously 

d. Multichotomously 


Answer- Dichotomously


Que- Which of the following group of tracheophyta has expanded or scale like leaves which are alwaysed arranges in whorls? 

a. Psilopsida 

b. Lycopsida 

c. Sphenopsida 

d. Prteropsida 


Answer- Sphenopsida


Que- Which of the following tracheophytes are leafless? 

a. Psilopsida 

b. Lycopsida 

c. Sphenopsida 

d. Prteropsida 


Answer- Psilopsida


Que- Sporangia of which of the following tracheopytes develop singly on the upper side of sporophylls which may or may not be arranged to form strobili. 

a. Psilopsida 

b. Lycopsida 

c. Sphenopsida 

d. Prteropsida 


Answer- Lycopsida


Que- Gametophyte of Psilopsida develops a symbiotic association with which of the following? 

a. Algae 

b. Bacteria 

c. Protozoa 

d. Fungus 


Answer- Fungus


Que- Which of the following is an example of the living member of Psilopsida? 

a. Rhynia 

b. Psilophyton 

c. Psilotum 

d. Cooksonia 


Answer- Psilotum


Que- In term of spore production Selaginella is characterized by 

a. Homosporous 

b. Hetrosporous 

c. Both depending upon the conditions 

d. None of these 


Answer- Hetrosporous


Que- Which of the following tracheophytes are also called arthrophytes? 

a. Psilopsids 

b. Lycopsids 

c. Sphenopsids 

d. Prteropsids 


Answer- Sphenopsids


Que- Equistem is an example of 

a. Psilopsida 

b. Lycopsida 

c. Sphenopsida 

d. Prteropsida 


Answer- Sphenopsida


Que- Today the land habitat is dominated by 

a. Fungi 

b. Gymnosperms 

c. Angiosperms 

d. Tracheophytes 


Answer- Tracheophytes


Que- Of the following which one is not the characteristic of the plants included in psilopsida? 

a. Gametophyte is colourless 

b. They have mycorrhizal association 

c. Rhizoids bear Rhizome 

d. Aerial branches have veinless outgrowths 


Answer- Rhizoids bear Rhizome


Que- Megaphylls are characteristic for 

a. Ferns 

b. Seed plants 

c. Both of these 

d. None of these 


Answer- Both of these


Que- The dichotomously branching system has shape similar to 

a. U 

b. R 

c. Y 

d. Fork 


Answer- Y


Que- The space between the overtopped dichotomous branches was occupies by a sheet of _____ cells during evolution of megaphyllas. 

a. Sclerenchyma 

b. Chlorenchyma 

c. Parenchyma 

d. Collenchyma 


Answer- Chlorenchyma


Que- Production of two types of spores is known as 

a. Heterospory 

b. Homospory 

c. Heterogamy 

d. Gamospory 


Answer- Heterospory


Que- Ground pries are also known as 

a. Lycopods 

b. Spike mosses 

c. Both of these 

d. None of these 


Answer- Both of these


Que- Which of the following plant group first formed true leaves? 

a. Psilopsida 

b. Lycopsida 

c. Sphenopsida 

d. Pteropsida 


Answer- Lycopsida

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