Biology MCQ (Multiple Choice Questions) - SchoolingAxis

Biology MCQ (Multiple Choice Questions)

 Que- Of the following, which one is missing in herbivores_______________? 

a. Premolars  

b. Canines  

c. Incisors  

d. Molars. 


Answer- Canines


Que- Certain types of whales are also __________ feeder? 

a. Fluid  

b. Macrophagous  

c. Filter  

d. None of these 


Answer- Filter


Que- ____________is about 2.4 meter in length and comprising about two fifth of the small intestine? 

a. Duodenum  

b. Jejunum  

c. Ileum  

d. Caecum 


Answer- Jejunum


Que- Hydra is an example of ______________ feeder? 

a. Fluid  

b. Macrophagous  

c. Fluid  

d. All of these 


Answer- Macrophagous


Que- Hepatic and Pancreatic secretions are also stimulated by a hormone produced by the intestinal mucosa. The hormone is___________? 

a. Creatin  

b. Gastrin  

c. Secretin  

d. Pepsin 


Answer- Secretin


Que- Parasites capable of living independently of its host at times is called as ___________ parasite? 

a. Obligate  

b. Strict  

c. Facultative  

d. Endoparasite 


Answer- Facultative


Que- A painful burning sensation produced in the chest cavity usually associated with the back flush of acidic chyme into the esophagus is__________? 

a. Pyrolysis  

b. Pyrosis  

c. Peristalsis  

d. Dyspepsia 


Answer- Pyrosis


Que- In planaria, numerous small branches which end blindly are called as__________? 

a. Digestive tract  

b. Intestinal caeca  

c. Hepatic caeca  

d. Both B & C 


Answer- Intestinal caeca


Que- Midgut in cockroach is a short narrow tube called____________? 

a. Hepatic caeca  

b. Gizzard  

c. Stomach  

d. Rectum 


Answer- Stomach


Que- Hunger contractions are _____ contractions? 

a. Antiperistalsis  

b. Peristalsis  

c. Voluntary  

d. None of these 


Answer- Peristalsis


Que- The partly digested food is stored in________in cockroach? 

a. Gizzard  

b. Crop  

c. Hepatic caeca  

d. Rectum 


Answer- Crop


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- 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 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- How many species of mushrooms are edible? 

a. 100.0 

b. 200.0 

c. 3000.0 

d. 4000.0 


Answer- 200.0


Que- Root like structure in saprotrophic fungi are called_______________? 

a. Rhizodis  

b. Haustoria  

c. Hyphae  

d. Constricting rings 


Answer- Rhizodis


Que- Penicillium reproduce via___________? 

a. Spores  

b. Conidia  

c. Budding  

d. Fragmentation 


Answer- Conidia


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- Mode of nutrition in penecillium is____________? 

a. Saprotrophs  

b. Parasitic  

c. Predators  

d. Mutualistics 


Answer- Saprotrophs


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- 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- 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- 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- 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- Endomycorrhizae


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

a. Zygomycota  

b. Ascomycota  

c. Basidiomycota  

d. Deuteromycota 


Answer- Ascomycota


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- 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- Ecological role of fungi as decomposers is only paralleled by_____________? 

a. Cyanobacteria  

b. Blue green algae  

c. Bacteria  

d. Virus 


Answer- Bacteria


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

a. Pilobolus  

b. Penicillium  

c. Neurospora  

d. Rhizopus 


Answer- Rhizopus


Que- Coenocytic hyphae are also known as______________? 

a. Septate  

b. Perforated hyphae  

c. Aseptate  

d. Uninucleate hyphae 


Answer- Aseptate


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

a. Sporing  

b. Conidiation  

c. Budding  

d. Fragmentation 


Answer- Budding


Que- Constricting ring around nematode is formed by_____________? 

a. Arthrobotrys  

b. Pleurotus ostreatus  

c. Mildews  

d. All of these 


Answer- Arthrobotrys


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- Type of lichen which tightly attaches to rocks is_____________? 

a. Parmelia  

b. Fruticose  

c. Foliose  

d. Crustose 


Answer- Crustose


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- Mycorrhizae are found in about__________vascular plants? 

a. 0.9 

b. 0.95 

c. 0.98 

d. 0.96 


Answer- 0.95


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 is responsible for Irish potato famine? 

a. Dinoflagellates  

b. Kleps  

c. Physarum polycephalum  

d. Phytophthora infestans 


Answer- Phytophthora infestans


Que- Which of the following statement about Kingdom Protista is incorrect_______________? 

a. Their members have characteristics which separate them from other kingdoms  

b. They only include unicellular aquatic eukaryotic organisms  

c. They do not develop from Blastula or embryo  

d. They contain ancestors for fungi plants & animals 


Answer- They only include unicellular aquatic eukaryotic organisms


Que- Spores produced by slime molds are__________? 

a. Haploid  

b. Diploid  

c. Triploid  

d. None of these 


Answer- Haploid


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

a. Zooflagellates  

b. Choanflagellates  

c. Trypanosomoa  

d. Trichonymphas 


Answer- Choanflagellates


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- Radiolarians belong to which of the following protozoal group____________? 

a. Zooflagellates  

b. Actinopods  

c. Foraminifera  

d. Apicomplexans 


Answer- Actinopods


Que- In chlorophytes the main energy stores are__________? 

a. Cellulose  

b. Starch  

c. Glycogen  

d. All of these 


Answer- Starch


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- Examples of Rhodophytes are___________? 

a. Chondrus  

b. Polysiphonia  

c. Both of these  

d. Pinnularia 


Answer- Both of these


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- Lime stone deposits are formed from__________? 

a. Zooflagellates  

b. Foraminferans  

c. Aetinopods  

d. Apicomplexans 


Answer- Foraminferans


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

a. Diatoms  

b. Euglenoids  

c. Dinoflagellates  

d. Brown algae 


Answer- Diatoms


Que- Plasmodium belongs to__________? 

a. Ciliates  

b. Apicomplexans  

c. Actinopods  

d. Foraminferans 


Answer- Apicomplexans


Que- Most dinoflagellates are___________? 

a. Unicellular  

b. Multicellular  

c. Both of these  

d. Zooflagellates 


Answer- Unicellular


Que- Kingdom protista includes_____________phyla? 

a. 27.0 

b. 28.0 

c. 26.0 

d. 29.0 


Answer- 27.0


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- Stentor is a/an____________? 

a. Ciliate  

b. Foraniniferan  

c. Actinopods  

d. Apicomplexan 


Answer- Ciliate


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

a. Dinoflagellates  

b. Zooflagellates  

c. Protozoans  

d. Algae 


Answer- Zooflagellates


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

a. Trichonymphas  

b. Trypanosoma  

c. Euglena  

d. Radiolarians 


Answer- Trichonymphas


Que- Golden algae are also known as___________? 

a. Chrysophyta  

b. Phaeophyta  

c. Pyrrophyta  

d. Rhodophyta 


Answer- Chrysophyta


Que- The drfinite shape to ciliates is given by____________? 

a. Pellicle  

b. Penicle  

c. Calcium  

d. Cell wall 


Answer- Pellicle


Que- Brown algae are also known as___________? 

a. Phaeophyta  

b. Rhodophyta  

c. Pyrrophyta  

d. Chrysophyta 


Answer- Phaeophyta


Que- Chalk is gradually formed of dead______________? 

a. Actinopods  

b. Foraminiferans  

c. Apicomplexans  

d. Radiolarians 


Answer- Foraminiferans


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- Of the following which one has glassy shells________________? 

a. Radiolarians  

b. Forams  

c. Both of these  

d. None of these 


Answer- Radiolarians


Que- Most of the photosynthesis on earth is carried by__________? 

a. Kelps  

b. Gymnosperms  

c. Angiosperms  

d. Algae 


Answer- Algae


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- The word Archaeobacteria (a division of bacteria) derived from Greek means___________? 

a. True bacteria  

b. False bacteria  

c. Recent bacteria  

d. Ancient bacteria 


Answer- Ancient bacteria


Que- Who coined the term Animalcules for microorganisms like Bacteria and protozoa______________? 

a. Robert Koch  

b. Louis Pasteur  

c. Alexander Fleming  

d. Leeuwenhoek 


Answer- Leeuwenhoek


Que- Who discovered the bacteria causing tuberculosis and also developed various techniques of media preparation and maintenance of pure culture_____________? 

a. Robert Koch  

b. Louis Pasteur  

c. Alexander Fleming  

d. Leeuwenhoek 


Answer- Leeuwenhoek


Que- Which of the following statement is incorrect regarding germ theory of diseases postulated by Robert Koch_____________? 

a. A specific organism can always be found in association with a given disease  

b. The organism can be isolated and grown in pure culture in the laboratories  

c. The pure culture cannot produce the disease when inoculated into susceptible animal however the causative organism isolated from pure culture can do so.  

d. It is possible to recover the organism in pure culture from the experimentally infected animals 


Answer- The pure culture cannot produce the disease when inoculated into susceptible animal however the causative organism isolated from pure culture can do so.


Que- Which of the following structure is not present in all the bacteria_____________? 

a. Cell membrane  

b. Chromatin bodies  

c. Ribosomes  

d. Capsule 


Answer- Capsule


Que- The size of Spirochete is_____________? 

a. 0.1 -600 um  

b. 100-200 nm  

c. 500 um  

d. 0.75-1.25 um 


Answer- 500 um


Que- E. coli and example of entrobacteriace is important for causing diarrheal diseases its size is____________? 

a. 0.1-600 um  

b. 100-200 nm  

c. 1.1-1.5 um (width) 2.0-6.0 um (length)  

d. 0.75-1.25 um 


Answer- 1.1-1.5 um (width) 2.0-6.0 um (length)


Que- In bacterial categories the bacteria smaller in number are_______________? 

a. Gram-ive bacteria  

b. Eubacteria  

c. Ancient bacteria  

d. Gram +ive bacteria 


Answer- Ancient bacteria


Que- Germ theory of disease has________________postulates? 

a. 3.0 

b. 5.0 

c. 4.0 

d. 6.0 


Answer- 4.0


Que- Some bacteria ranging occasionally a size of 500 ?m in length are___________________? 

a. Escherichia coli  

b. Spirochetes  

c. Mycoplasma  

d. Epulopiscuim 


Answer- Spirochetes


Que- Coccobacillus has a shape similar to________________? 

a. Diplobacillus  

b. Sarcina  

c. Egg  

d. None of these 


Answer- Egg


Que- The first bacterium isolated was_________________? 

a. Coccus  

b. Bacillus  

c. Vibrio  

d. Spirochete 


Answer- Bacillus


Que- Which of the following bacteria are thick rigid and spiral______________? 

a. Vibrio  

b. Spirillum  

c. Spirochete  

d. Coccus 


Answer- Spirillum


Que- A group of 8 cocci is called______________? 

a. Diplococci  

b. Octococci  

c. Tetrad  

d. Sarcina 


Answer- Sarcina


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- Cyanobacteria reproduce by____________? 

a. Binary fission  

b. Mitosis  

c. Meiosis  

d. Conjugation 


Answer- Binary fission


Que- Which of the following help cyanobacteria to locomote? 

a. Flagella  

b. Gas vesicles  

c. Both of these  

d. None of these 


Answer- Gas vesicles


Que- Cyanobacteria have ________ cell wall? 

a. Gram +ve.  

b. Gram – ve.  

c. Acid fast  

d. Cellulose rich 


Answer- Gram – ve.


Que- Who developed the vaccine against anthrax? 

a. Louis Pasteur  

b. Edward Jennar  

c. Leuvenhoek  

d. Alexander Fleming 


Answer- Louis Pasteur


Que- Chemical substances used on living tissues that inhibit the growth of micro organism are called___________? 

a. Antiseptics  

b. Disinfectants  

c. Antibiotics  

d. Vaccines 


Answer- Antiseptics


Que- Rapid growth at exponential ration occurs in which phase of bacterial growth: 

a. Lag phase  

b. Log phase  

c. Stationary phase  

d. Death / decline phase 


Answer- Log phase


Que- Sex pill is formed in which of the following processes? 

a. Binary fission  

b. Mitosis  

c. Sexual reproduction  

d. Conjugation 


Answer- Conjugation


Que- Spirochete is an example of___________? 

a. Aerobic bacteria  

b. Anaerobic bacteria  

c. Facultative bacteria  

d. Microaerophilic 


Answer- Anaerobic bacteria


Que- E. coli and example of____________? 

a. Aerobic bacteria  

b. Anaerobic bacteria  

c. Facultative bacteria  

d. Microaerophilic 


Answer- Facultative bacteria


Que- Nitrifying bacteria are the examples of___________? 

a. Hetrotrophic bacteria  

b. Chemosynthetic bacteria  

c. Saprophytic bacteria  

d. Parasitic bacteria 


Answer- Chemosynthetic bacteria


Que- Those bacteria which are fully dependent upon their host for nutrition are called__________? 

a. Heterotrophic bacteria  

b. Chemosynthetic bacteria  

c. Saprophytic bacteria  

d. Parasitic bacteria 


Answer- Parasitic bacteria

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