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TEST EXAM                        CLASS -XI                       OBJECTIVE

WHO WROTE SPECIES PLATARUM – THEOPHRASTUS  b. PLINI c. JHON RAY   d. LINNEAUS. WHICH ONE OF THE FOLLOWING IN PROKARYOTES? a. CHLAMYDOMONAS   b. ULOTHRIX    c. BACTERIA   d.  ALL 3. NUTRITIONIN MONERANS --- a. AUTOTROPHIC MODE b. HETEROTROPHIC MODE  c.  SYMBIOSIS 4. WHICH ONE OF THE FOLLOWING IS A PLANT LIKE PROTISTA --- a. DIATOMS b. AMOEBA  c. EULENA d. PARAMOCIUM 5. BIONOMEAL NOMNECLATURE INCLUDES- a. ORDER & FAMILY b.  FAMILY & GENUS  c. GENUS & SPECIES d.  SPECIES & VERTIETY 6. FUNDAMENTAL UNIT OF CLASSIFICATIES IS    a. SPECIES   b. GENUS c. FAMILY d. ORDER 7. WHICH ONE OF THE FOLLOWING IS THE CORRECET ORDER. a. SPECIES – GENUS – ORDER -- PHYLUM.

.  Test Exam   - (Biology) - 12th         R.S SHARMA. Full marks - 45      Reproduction in Organism                            Time – 90 minutes Objective test                    1*15 = 15 marks 1.	When an offspring is produced from single parent it is called -- (a)	 Sexual reproduction (b) Asexual reproduction © Internal  fertilization       (d)   none 2. Estrous cycle is the characteristics of _ (A) Mammals   (b) Mammalian female (c) Human females (d) All. 3. When syngamy occurs outside the body of an organism it is called – (a) Parthenogenesis (b) External fertilization (c) Internal fertilization (d) Embryogenesis 4. In human female sexual cycle is known as --- 5. The pollen tube in angiosperms carries --- nuclei. 6. The innermost wall of the microsporangium which is nutritive in         Nature is called as – (a) Endothecium   (b) Intine   (c) Tapetum   (d) Middle layer. 7. In porogamy, pollen tube enters the embryo sac through -- (A) Chalaza (b) Integument (c) Micropyle (d) All. 8. In the ovule which is the last saprophytic stage (2n) of nucellus (a) Megaspore mother cell (b) Microspore mother cell © Synergids (d) None 9. Apomixis is the (a) Process of formation of embryo without fertilization. (b) Process of formation of fruit without fertilization. (c) Process of formation of seeds without fertilization. (d) All. 10. A gymnospermic leaf carries 16 chromosomes .What will be the number of chromosomes in endosperm. (a)	 16   (b) 24     (c)   12     (d)    8. 11. Entomophily is the pollination by -- (a) Birds (b) Bats (c) Wind (d) Insects. 12. If an angiospermic male plant is diploid and the female plant is     Tetraploid, what will be the nature of endosperm – (a)	 Diploid   (b)   Triploid   (c) Tetraploid    (d) Pentaploid 13. In angiosperms triple fusion results in the formation of      (a) Primary endosperm nucleus (b) Zygotic nucleus (c) Secondary Nucleus  (d) Polar nucleus 14. The number of meiotic division required to produce 400 a seed in a pea plant is (a)	600 (b) 500  (c) 800  (d) 400 15. The exine of pollen grain is made up of   (a) Lignin and cutin (b) Sporopollenin (c) Cellulose (d) Pectin and lignin. 16. Match column A to column B.            1 * 5 = 5 marks COLUMN –A                                    COLUMN –B Cleistogamy                                        Calotropis Hydrophily                                           Commelina benghalensis Herkogamy                                          Vallisneria Entomophily                                         Gloriosa Pollinium                                              Cucurbits 17. Fill in the blanks -                                        1 * 5 = 5 marks (A) Fusion of male and female gamete is known as  (b)  Total number of nuclei involved in the process of double fertilization is -. (c) Micro spore is two cells in angiosperms. These cells are --- cell and --- cell. (d) Allogamy is the other name for - pollination. (e) After fertilization - transform into seed and - into fruit. 18. Very short type                                          2 * 6 = 12 marks (a) Write two advantage of asexual reproduction. (b) What is the significance of meiotic division during? gametogenesis. (c) Define external and internal fertilization. (d) Write two characteristics of entomophilous flower. (e) Define cleistogamous and chasmogamous flower. (f) What is the function of two male gametes entering in the embryo sac. 19. Give the structure and function of various cells found in           female gametophyte                                 1 * 3 = 3 marks F.M – 40            TEST EXAM      -   CLASS -12                     TIME – ENVIRONMENTAL ISSUES      R.S SHARMA. OBJECTIVE  TEST

1. If BOD of river is very high it means that river is – (a) Not polluted  (b) Very polluted   (c) Gets least amount of light (d) Temperature of water is low. 2. Which part of the living cell is affected by SO2 –? (a) Nucleus (b) Cell membrane (c) Cell wall  (d) Plasmodesmata. 3. Which is the main air Pollutant   ? (a) CO2     (B) CO      (C)      N2       (d) sulphur. 4. Biomagnification is the phenomenon of   (a)  Culturing fungi in waste material for gain in protein rich biomass. (b) Cultivation of fast growing trees to increase wood production. (c) Increased N2 fixation by a combined growth of blue – green algae and nitrogen fixing bacteria. (d) Increase in the concentration of non –biodegradable substances with passage through food chain within the body of organism. 5. Which is an indicator of air quality? (A) Lichen  (b) Moss   (c) Rhizopus   (d) Virus. 6. Which is a major green house gas? (a) CO2      (B) Freon     (c) CFC      (d) None. 7. Spraying of DDT on crops produce pollution of  (a) Soil and water only (b) Air and soil only (c) Air, soil and water (d) Air and water only 8. Minamata disease is a pollution related disease results from (a) Oil splits in sea (b) release of human organic wastes into drinking water (c) accumulation of arsenic into drinking water (d) release of industrial waste containing mercury into fishing water 9. Which of the following represent the phenomenon of ozone hole ---? (a) Absence of in stratosphere (b) reduction of ozone layer thickness in  stratosphere (c) Absence of ozone in troposphere (d) Reduction of        Ozone layer in troposphere 10. Catalytic converter is used in automobiles – (a) For removing the poisonous lead (b) For converting CO and harmful Hydrocarbon into CO2 and water vapour (c) For removing water (d) None. 11.                                Very short type                       5 * 1 = 5 Marks.