Class 11- Biology- chapter 2- Biological classification InstructionTotal Questions : 20Total time :20 minTotal Marks : 20 x 3 = 60 MarksEach Correct Question carries : 3 MarksEach incorrect Question Carries : -1 MarksEach Unattempted Question carry : 0 MarksBe careful On Negative Markings 1. Bovine spongiform encephalopathy is a disease caused by prions in Sheep Man Potato Cow None 2. Methanogens can be found In marshes All of the above In swamps In a cow's stomach None 3. Lichens multiply by Bud formation Oidia formation Soredia formation Conidia formation None 4. Cell of Amoeba is Broad shaped Indefinite in shape Spherical in shape Spindle shaped None 5. Highly resistant thick walled spores produced by bacterial cells during unfavourable conditions are called as Zoospores Endospores Gemmules Heterocyst None 6. Lichens are important in the studies on atmospheric pollution because they None of the above Can cause eutrophication Efficiently purify the atmosphere Are very sensitive to pollutants like 𝑆𝑂2 None 7. A semi-parasite relationship between the algal and fungal components of a lichen is termed as None of the above Parasitism Helotism Predation None 8. An algal culture is grown and two different species of protozoans A and C are inoculated into the culture which feeds on algae. For the time period during which algae is not acting as a limiting factor, protozoan A reproduces asexually once every hour and protozoan C reproduces one every 1.5 hours. The most likely observation is The algae will die off from the culture due to overfeeding. The protozoans will evolve to have a mutualistic relationship. Both populations of protozoans will increase in size initially, but then Protozoan C will die off from the culture. The algae will rapidly evolve to avoid predation. None 9. Study the following lists.List-IList-II(A) Sex hormone(I) Fertilization in Funaria(B) Cell wall breaking enzyme(II) Formation of zygophores in Rhizopus(C) Sugary mucilaginous substance(III) Formation of buds in Funaria(D) Naturally occurring growth factor(IV) Fertilization of Pteris (V) Conjugation in Spirogyra A- (V), B- (IV), C- (III), D- (II) A- (V), B- (II), C- (IV), D- (III) A- (II), B- (V), C- (I), D- (III) A- (II), B- (IV), C- (III), D- (II) None 10. Which of the following is unicellular? Euglena Pinus Moss Rhizopus None 11. Which class of protozoa is totally parasitic? Ciliate Rhizopda Flagellata Sporozoa None 12. The structure(s) found in chlamydomonas but not in amoeba is/are: pyrenoid cell wall plastids all the above None 13. Lichen do not grow in cities because of the Absence of the right type of algae and fungi Absence of natural habitats Lack of moisture SO2 pollution None 14. An example of tumour inducing RNA virus is Rous Sarcoma Herpes virus Simian Virus 40 40 Adeno virus None 15. CJD caused by Virus Prion Viroid Mycoplasma None 16. Why are protozoans regarded as primitive animals? They are unicellular and microscopic. None of these. Tissues, organs and organ systems are not developed in them. Both They are unicellular and microscopic. And Tissues, organs and organ systems are not developed in them. None 17. Bacterial ribosomes are found On nuclear memberane. On the cell wall. In the cytoplasm. On endoplasmic reticulum. None 18. Match the following lists.List-IList-II1. HIVI. Host2. PilusII. Prophage3. Virus penetrationIII. Retroviridae4. LysogenyIV. Polyhedral virus 1- iv, 2- iii, 3- ii, 4- i 1- iii, 2- iv, 3- i, 4- ii 1- i, 2- ii, 3- iii, 4- iv 1- i, 2- iv, 3- iii, 4- ii None 19. Select the true statements out of the following. All of the above. The apothecium consists of the fungal component only (e.g. Cladonia), such apothecia are called lecideine type. The lichens are curious because they are composite or dual organism. Parmelia, Physica, Lecanora etc. have more highly developed apothecia called Lecanorine type in which both fungal and algal components are present. None 20. It is difficult to make anti-viral drugs because Viruses are one of the borderline of living and non-living state Viruses use the host cell as machinery to grow and divide. Viruses are surrounded by protein coat. Viruses are very small in size. None 21. Read the following statements about four kinds of microorganisms P, Q, R, and S.(i) P converts milk into curd.(ii) Q is used for making antibiotics.(iii) R contains RNA as genetic material and causes the reduction in immunity of its host.(iv) S is used to manufacture wine and beer.Select the correct option. P is Lactobacillus and Q is Penicillium Q is HIV and S is yeast Q is Lactobacillus and R is yeast P is yeast and R is HIV None 22. The absence of cell wall but the presence of Golgi body and ribosomes in a unicellular organism indicates that it belongs to Eubacteria Fungi Animalia Protista None 23. In order to attack a host cell The virus must have a particular shape that will match up with the proteins on the surface of the host cell. The virus must have the proper enzyme to puncture the membrane of the host cell The virus must have the enzymes to cause the host cell to burst so that the host cell may be used as raw materials. The virus must have the DNA or RNA key sequence to enter the host cell. None 24. Thermus aquaticus is a species of bacteria found living in the hot springs in Yellowstone National Park. Hot springs typically are areas characterized by low oxygen levels, low light levels and high concentrations of sulfur and calcium carbonate.In what way do bacteria living in or near hot springs most likely make food? Through the process of photorespiration by using oxygen and light energy to produce carbon dioxide. Through the process of radiosynthesis by using gamma radiation and melanin to create energy for growth. Through the process of chemosynthesis by combining hydrogen sulfide with oxygen and carbon dioxide to make carbohydrates. Through the process of photosynthesis by using energy from the sun, water and carbon dioxide to make glucose. 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