CBSE Class 11 Living World and Biological Classification — practice questions
81 free MCQs with worked solutions. Tap any question for the answer + explanation, or practice them all in the app.
Practice CBSE Class 11 Living World and Biological Classification in the app →The five-kingdom classification was proposed by:Bacteria belong to which kingdom under Whittaker's classification?In the five-kingdom system, organisms with cell wall composed of CHITIN belong to which kingdom?Identify the bacterium responsible for the production of methane in the gut of ruminants like cows and buffaloCyanobacteria (blue-green algae) are CHEMICALLY distinct from other bacteria because they:Diatoms are placed under Kingdom Protista group:Red tides in the sea are caused by rapid multiplication of:A common feature that distinguishes archaeabacteria from eubacteria is:Mycoplasma are distinguished by:Identify the protozoan group correctly matched with its example.Fungi sexual cycle proceeds through three steps. Identify the CORRECT sequence.Identify the matching fungal class for Penicillium and yeast (Saccharomyces).Identify the fungal class containing MUSHROOMS, BRACKET FUNGI, RUSTS and SMUTS.DEUTEROMYCETES (imperfect fungi) are characterised by:Identify the INCORRECT statement about Kingdom Plantae.Why are VIRUSES not included in the five-kingdom classification?In binomial nomenclature, the species name 'Mangifera indica' (mango) should be written with:The taxonomic hierarchy (broadest to narrowest) is:Carolus Linnaeus is best known as the father of:R. H. Whittaker proposed the 5-Kingdom classification system in:The cell wall of bacteria (Kingdom MONERA) is made primarily of:Mushrooms belong to which class of FUNGI?A virus is best described as:A LICHEN is a symbiotic association between:The 3-DOMAIN system of classification (Woese, 1990) divides life into:The Five Kingdom Classification was proposed in 1969 by:How many kingdoms did Whittaker recognise?Which kingdom holds all the prokaryotes?Bacteria are grouped into how many categories by shape?The comma shaped bacterium is called a:Bacteria as a group are noted for the most extensive:Bacteria that live in extremely salty places are called:Archaebacteria of hot springs are known as:Methane in the gut of cattle is produced by:Blue green algae are more correctly called:Nitrogen is fixed in cyanobacteria inside specialised cells called:Chemosynthetic autotrophic bacteria get their energy by oxidising:Which disease is caused by a bacterium?Bacteria reproduce mainly by:Which organisms completely lack a cell wall?Kingdom Protista holds all eukaryotes that are:The cell wall of a diatom is embedded with:The heaped up cell walls of dead diatoms make up:The chief producers in the oceans are the:Red tides in the sea are caused by rapid growth of:Instead of a cell wall a euglenoid has a protein rich:Deprived of sunlight euglenoids behave like:Slime moulds obtain food in which way?The aggregation formed by a slime mould is called a:Amoeboid protozoans capture their prey using:Sleeping sickness is caused by which flagellated protozoan?The cavity through which Paramoecium takes in food is the:Malaria is caused by which sporozoan?Which fungus is unicellular?The network of thread like filaments in a fungus is the:Hyphae that are continuous tubes with many nuclei are called:The cell wall of a fungus is built mainly of:Fungi living in association with algae form:Fusion of protoplasms of two gametes in a fungus is:Fusion of two nuclei in the fungal sexual cycle is:The stage with two nuclei in one cell is called a:Which class of fungi has an aseptate coenocytic mycelium?Ascomycetes are commonly known as:Which fungus is used widely in biochemical and genetic work?Mushrooms, bracket fungi and puffballs belong to:How many basidiospores form on a single basidium?Deuteromycetes are called imperfect fungi because they lack a known:Insectivorous plants such as the Venus fly trap are:The alternation of haploid and diploid phases in plants is called:Animals store their food reserve as:The mode of nutrition of animals is described as:Who first recognised the microbe of tobacco mosaic disease?Who showed that viruses could be crystallised?The genetic material of a virus can be:Viruses that infect plants usually carry:The protein coat that protects viral nucleic acid is the:A viroid differs from a virus in having no:Mad cow disease is caused by an agent called a:A lichen is a partnership between a fungus and an:Lichens are useful because they act as indicators of:Biological classification was first proposed by: