The Living World PYQs Set 1 (PDF)

Set 1 of 7 · Questions 1-30 of 197

In the print window choose “Save as PDF”. The file prints without a web address or date line.

Mere Teacher · Previous Year Questions NEET Biology · The Living World · Set 1 (Q1-30)
Scan or visit mereteacher.com for free PYQ practice, timed CBT tests, step-by-step solutions and BroBot AI. Answers and solutions are free with a sign-up.
1. $Nomenclature is governed by certain universal rules. Which one of the following is contrary to the rules of nomenclature?$ (1) $Biological names can be written in any language$ (2) $The first word in a biological name represents the genus name, and the second is a specific epithet$ (3) $The names are written in Latin and are italicized$ (4) $When written by hand, the names are to be underlined$ 2. $Which of the following statements about methanogens is not correct?$ (1) $They can be used to produce biogas.$ (2) $They are found in the rumen of cattle and their excreta$ (3) $They grow aerobically and breakdown cellulose-rich food.$ (4) $They produce methane gas$ 3. $One of the free-living, anaerobic nitrogenfixer is:$ (1) $Azotobacter$ (2) $Beijernickia$ (3) $Rhodospirillum$ (4) $Rhizobium$ 4. $Cyclosporin A, used as immuno suppression agent, is produced from :$ (1) $Monascus purpureus$ (2) $Saccharomyces cerevisiae$ (3) $Penicillium notatum$ (4) $Trichoderma polysporum$ 5. $Which one of the following does not differ in E.coli and Chlamydomonas ?$ (1) $Cell wall$ (2) $Cell membrane$ (3) $Ribosomes$ (4) $Chromosomal Organization$ 6. $Five kingdom system of classification suggested by R.H. Whittaker is not based on :$ (1) $Presence or absence of a well defined nucleus.$ (2) $Mode of reproduction.$ (3) $Mode of nutrition.$ (4) $Complexity of body organisa$ 7. $Which one of the following is not an inclusion body found in prokaryotes?$ (1) $Cyanophycean granule$ (2) $Glycogen granule$ (3) $Polysome$ (4) $Phosphate granule$ 8. $The label of a herbarium sheet does not carry information on$ (1) $Name of collector$ (2) $Local names$ (3) $Height of the plant$ (4) $Date of collection$ 9. $Male and female gametophytes do not have an independent free living existence in :-$ (1) $Pteridophytes$ (2) $Algae$ (3) $Angiosperms$ (4) $Bryophytes$ 10. $Which of the following bacteria reduce nitrate in soil into nitrogen?$ (1) $Nitrobacter$ (2) $Nitrococcus$ (3) $Thiobacillus$ (4) $Nitrosomonas$ 11. $Which pair of the following belongs to Basidiomycetes?$ (1) $Morchella and Mushrooms$ (2) $Birds' nest fungi and Puffballs$ (3) $Pufballs and Claviceps$ (4) $Peziza and Stinkhorns$ 12. $In which one of the following, male and female gametophytes do not have free living independent existence?$ (1) $Polytrichum$ (2) $Cedrus$ (3) $Pteris$ (4) $Funaria$ 13. $Select one of the following pairs of important features distinguishing Gnetum from Cycas and Pinus and showing affinities with angiosperms :-$ (1) $Perianth and two integuments$ (2) $Embryo development and apical meristem$ (3) $Absence of resin duct and leaf venation$ (4) $Presence of vessel elements and absence of archegonia$ 14. $Which of the following is against the rules of ICBN?$ (1) $Hand written scientific names should be underlined.$ (2) $Every species should have a generic name and a specific epithet.$ (3) $Scientific names are in Latin and should be italicized.$ (4) $Generic and specific names should be written starting with small letters.$ 15. $Which one of the following pairs is wrongly matched?$ (1) $Coliforms - Vinegar$ (2) $Methanogens - Gobar gas$ (3) $Yeast - Ethanol$ (4) $Streptomycetes - Antibiotic$ 16. $Select correctly written scientific name of Mango which was first described by Carolus Linnaeus:$ (1) $Mangifera indica Car. Linn.$ (2) $Mangifera indica Linn.$ (3) $Mangifera indica$ (4) $Mangifera Indica$ 17. $Thermococcus, Mtehanococcus and Methanobacterium exemplify :-$ (1) $Bacteria whose DNA is relaxed or positively supercoiled but which have a cytoskeleton as well as mitochondria$ (2) $Bacteria that contain a cytoskeleton and ribosomes$ (3) $Archaebacteria that contain protein homologous to eukaryotic core histones$ (4) $Archaebacteria that lack any histones resembling those found in eukaryotes but whose DNA is negatively supercoiled.$ 18. $The thalloid body of a slime mould (Myxomycetes) is known as :$ (1) $Fruiting body$ (2) $Mycelium$ (3) $Protonema$ (4) $Plasmodium$ 19. $In which of the following gametophyte is not independent free living?$ (1) $Marchantia$ (2) $Pteris$ (3) $Pinus$ (4) $Funaria$ 20. $Which of the following is wrongly matched in the given table? Microbe Product Application$ (1) $Trichoderrna polysporum Cyclosporin A immunosup- pressive drug$ (2) $Monascus pur pure us Statins lowering of blood cholesterol$ (3) $Streptococcus Streptokinase removal of clot from blood vessel$ (4) $Clostridium bufylicum Lipase removal of oil stains$ 21. $Which among the following are the smallest living cells, known without a definite cell wall, pathogenic to plants as well as animals and can survive without oxygen?$ (1) $Pseudomonas$ (2) $Mycoplasma$ (3) $Nostoc$ (4) $Bacillus$ 22. $The bacterium (Clostridium botulinum) that causes botulism is :$ (1) $a facultative aerobe$ (2) $an obligate aerobe$ (3) $a facultative anaerobe$ (4) $an obligate anaerobe$ 23. $Ergot of rye is caused by a species of :-$ (1) $Claviceps$ (2) $Phytophthora$ (3) $Uncinula$ (4) $Ustilago$ 24. $Monascus purpureus is a yeast used commercially in the production of :-$ (1) $citric acid$ (2) $blood chlolestrol lowering statins$ (3) $ethanol$ (4) $streptokinase for removing clots from the blood vessels.$ 25. $Match List - I with List - II List - I (A) Cedrus (B) Adiantum (C) Sphagnum (D) Marchantia List - II (I) Pteridophyte (II) Gymnosperm (III) Liverwort (IV) Moss Choose the correct answer from the options given below :$ (1) $(A)-(III), (B)-(I), (C)-(IV), (D)-(II)$ (2) $(A)-(II), (B)-(I), (C)-(IV), (D)-(III)$ (3) $(A)-(III), (B)-(IV), (C)-(II), (D)-(I)$ (4) $(A)-(II), (B)-(III), (C)-(I), (D)-(IV)$ 26. $After karyogamy followed by meiosis, spores are produced exogenously in$ (1) $Neurospora$ (2) $Alternaria$ (3) $Agaricus$ (4) $Saccharomyces$ 27. $Which one of the following aspects is an exclusive characteristic of living things?$ (1) $Isolated metabolic reactions occurs in vitro.$ (2) $Perceptions of events happening in the environment and their memory.$ (3) $Increase in mass from inside only$ (4) $Increase in mass by accumulation of material both on surface as well as internally.$ 28. $Match the columns and find the correct option. Column - I (A) Ascomycetes (B) Phycomycetes (C) Basidiomycetes (D) Deuteromycetes Column - II (I) Ustilago (II) Saccharomyces (III) Trichoderma (IV) Albugo$ (1) $A-II, B-I, C-IV, D-III$ (2) $A-IV, B-III, C-II, D-I$ (3) $A-II, B-IV, C-I, D-III$ (4) $A-III, B-IV, C-I, D-II$ 29. $Them most abundant prokaryotes helpful to humans in making curd from milk and in production of antibiotics are ones categorised as :$ (1) $Chemosynthetic autotrophs$ (2) $Heterotrophic bacteria$ (3) $Cyanobactaria$ (4) $Archaebacteria$ 30. $Inclusion bodies of blue- green, purple and green photosynthetic bacteria are :$ (1) $Contractile vacuoles$ (2) $Gas vacuoles$ (3) $Centrioles$ (4) $Microtubules$