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. Bacterial ribosomes are found On nuclear memberane. On endoplasmic reticulum. In the cytoplasm. On the cell wall. None 2. The structure(s) found in chlamydomonas but not in amoeba is/are: plastids cell wall all the above pyrenoid None 3. An example of tumour inducing RNA virus is Rous Sarcoma Herpes virus Adeno virus Simian Virus 40 40 None 4. CJD caused by Prion Mycoplasma Viroid Virus None 5. A semi-parasite relationship between the algal and fungal components of a lichen is termed as Helotism Predation Parasitism None of the above None 6. 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 P is yeast and R is HIV Q is Lactobacillus and R is yeast None 7. Why are protozoans regarded as primitive animals? 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. They are unicellular and microscopic. None of these. None 8. 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 radiosynthesis by using gamma radiation and melanin to create energy for growth. Through the process of photorespiration by using oxygen and light energy to produce carbon dioxide. 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. None 9. Which of the following is unicellular? Rhizopus Moss Pinus Euglena None 10. Bovine spongiform encephalopathy is a disease caused by prions in Potato Man Cow Sheep None 11. In order to attack a 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 a particular shape that will match up with the proteins on the surface of the host cell. The virus must have the DNA or RNA key sequence to enter the host cell. The virus must have the proper enzyme to puncture the membrane of the host cell None 12. It is difficult to make anti-viral drugs because Viruses are surrounded by protein coat. Viruses use the host cell as machinery to grow and divide. Viruses are very small in size. Viruses are one of the borderline of living and non-living state None 13. Match the following lists.List-IList-II1. HIVI. Host2. PilusII. Prophage3. Virus penetrationIII. Retroviridae4. LysogenyIV. Polyhedral virus 1- i, 2- ii, 3- iii, 4- iv 1- iii, 2- iv, 3- i, 4- ii 1- iv, 2- iii, 3- ii, 4- i 1- i, 2- iv, 3- iii, 4- ii None 14. 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- (II), B- (IV), C- (III), D- (II) A- (V), B- (IV), C- (III), D- (II) A- (II), B- (V), C- (I), D- (III) A- (V), B- (II), C- (IV), D- (III) None 15. Highly resistant thick walled spores produced by bacterial cells during unfavourable conditions are called as Zoospores Endospores Gemmules Heterocyst None 16. Select the true statements out of the following. The apothecium consists of the fungal component only (e.g. Cladonia), such apothecia are called lecideine type. Parmelia, Physica, Lecanora etc. have more highly developed apothecia called Lecanorine type in which both fungal and algal components are present. All of the above. The lichens are curious because they are composite or dual organism. None 17. Cell of Amoeba is Indefinite in shape Spindle shaped Broad shaped Spherical in shape None 18. Lichens are important in the studies on atmospheric pollution because they Can cause eutrophication Efficiently purify the atmosphere Are very sensitive to pollutants like 𝑆𝑂2 None of the above None 19. Which class of protozoa is totally parasitic? Flagellata Rhizopda Sporozoa Ciliate None 20. 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 Both populations of protozoans will increase in size initially, but then Protozoan C will die off from the culture. The algae will die off from the culture due to overfeeding. The algae will rapidly evolve to avoid predation. The protozoans will evolve to have a mutualistic relationship. None 21. Methanogens can be found In a cow's stomach In swamps All of the above In marshes None 22. Lichens multiply by Conidia formation Soredia formation Bud formation Oidia formation None 23. The absence of cell wall but the presence of Golgi body and ribosomes in a unicellular organism indicates that it belongs to Protista Eubacteria Fungi Animalia None 24. Lichen do not grow in cities because of the Absence of natural habitats SO2 pollution Lack of moisture Absence of the right type of algae and fungi None Please Share This Share this content Opens in a new window Opens in a new window Opens in a new window Opens in a new window Opens in a new window Opens in a new window Opens in a new window Opens in a new window Opens in a new window Opens in a new window Leave a Reply Cancel replyCommentEnter your name or username to commentEnter your email address to commentEnter your website URL (optional) Save my name, email, and website in this browser for the next time I comment.
