Junejo Xi Botany

25 Questions | Total Attempts: 203

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Junejo Xi Botany

XI Botany Sindh Text Book Board Syllabus Junejo A Jalil  


Questions and Answers
  • 1. 
    Statement not related with cell theory
    • A. 

      All living organisms having same type of cell

    • B. 

      All living organism are made of one or more cell

    • C. 

      Cell is the Basic unit of life

    • D. 

      Cells are coming from pre-existing cells

  • 2. 
    Membrane bound Nucleus present in
    • A. 

      Eukaryotic cell

    • B. 

      Prokaryotic cell

    • C. 

      Cyanobacterial cell

    • D. 

      Bacterial ell

  • 3. 
    Major Lipids of Plasma membrane are
    • A. 

      Glycolipids

    • B. 

      Phospholipids

    • C. 

      Cholestrol lipids

    • D. 

      Glyco proteins

  • 4. 
    In protoandry condition
    • A. 

      Spore germinates into gametophyte

    • B. 

      Prothallus formed by the fusion of gametes

    • C. 

      Antheridia mature earlier than archegonia

    • D. 

      Sperm nuclei fuses with egg nuclei

  • 5. 
    The process of transpiration helps the plant in. 
    • A. 

      Upward conduction of water

    • B. 

      Absorption of CO2

    • C. 

      Opening of stomata

    • D. 

      Loss of water droplets

  • 6. 
    Common between aerobic and anaerobic respiration
    • A. 

      Glycolysis

    • B. 

      TCA cycle

    • C. 

      Electron transport chain

    • D. 

      Acetyl Co-A formation

  • 7. 
    Viroids are
    • A. 

      Small naked fragments of DNA

    • B. 

      Small naked fragments of RNA

    • C. 

      Empty capsid of virus

    • D. 

      Viral genome

  • 8. 
    Casparian strip is a 
    • A. 

      Waxy cuticle present around epidermis

    • B. 

      Waxy belt with in endodermis

    • C. 

      Waxy belt with in pericycle

    • D. 

      Waxy belt with in xylem

  • 9. 
    By the addition of solute in pure water, water potential will be?
    • A. 

      Increases

    • B. 

      – ve or decreases

    • C. 

      Zero

    • D. 

      More + ve

  • 10. 
    A type of nutrition is said to be chemosynthesis or chemo autotrophic, because?
    • A. 

      Light energy of sun is used

    • B. 

      Carbon dioxide and water are used

    • C. 

      Pigments are used

    • D. 

      Chemical energy of inorganic substances is used

  • 11. 
    Heterospory best describes the formation of? 
    • A. 

      Formation of different gametes

    • B. 

      Two different gametophytes (male and female)

    • C. 

      Microspore and Megaspore

    • D. 

      Sperm containing and egg containing spores

  • 12. 
    All viruses 
    • A. 

      Having DNA as a genome

    • B. 

      Having RNA as a genome

    • C. 

      Lacks lipid rich envelop

    • D. 

      Having protein coat capsid

  • 13. 
    In LAG phase bacteria
    • A. 

      Grow and multiply rapidly

    • B. 

      Death rate and growth rate are equal

    • C. 

      Prepare itself for growth

    • D. 

      Death rate is more rapid than growth rate

  • 14. 
    Glucose + ATP ---> Glucose – 6 phosphate + ADP, this reaction is related with
    • A. 

      Oxidative phosphorylation

    • B. 

      Calvin cycle

    • C. 

      Krebs's cycle

    • D. 

      Glycolysis

  • 15. 
    Fermentation includes
    • A. 

      Glycolysis and reduction of pyruvic acid

    • B. 

      Oxidative phosphorylation and acetyl Co-A formation

    • C. 

      Citric acid cycle and Electron transport chain

    • D. 

      Decaroxylation and reduction of NAD

  • 16. 
    In cell membrane
    • A. 

      Non polar tails are hydrophobic

    • B. 

      Membrane protein present in fluid state

    • C. 

      Polar heads present inwards

    • D. 

      Lipids are present in mosaic form

  • 17. 
    Homologous organs are
    • A. 

      Same in origin and functions

    • B. 

      Different in origin and same functions

    • C. 

      Same origin and different in functions

    • D. 

      Different origin and different functions

  • 18. 
    All members of kingdom Monera 
    • A. 

      Lacks DNA with histone

    • B. 

      Reproduce by budding

    • C. 

      Can photosynthesize

    • D. 

      Having membrane bound organelles

  • 19. 
    Non virulent or temperate phage viruses can not
    • A. 

      Multiply with in host cell

    • B. 

      Integrated into host genome (prophage)

    • C. 

      Infect and kill the bacteria

    • D. 

      Multiply outside the host cell

  • 20. 
    Obligate anaerobes 
    • A. 

      Unable to grow in the presence of oxygen

    • B. 

      Can not survive with out oxygen

    • C. 

      May or may not require oxygen

    • D. 

      Lacks ribosomes

  • 21. 
    Total amount of energy in each trophic level is called
    • A. 

      Pyramids of biomass

    • B. 

      Pyramids of numbers

    • C. 

      Pyramids of energy

    • D. 

      Food web

  • 22. 
    All plant like Protoctista lacks 
    • A. 

      Multicellularity

    • B. 

      Eukaryotic cell

    • C. 

      Heterotrophy

    • D. 

      Sexual reproduction

  • 23. 
    Common mode of fungus nutrition is  
    • A. 

      Heterotrophic ingestion

    • B. 

      Heterotrophic absorption

    • C. 

      Parasitic absorption

    • D. 

      Chemosynthesis

  • 24. 
    Mycelium is a 
    • A. 

      Net work of hyphae

    • B. 

      Fruiting bodies

    • C. 

      Septate structure

    • D. 

      Gamatangia

  • 25. 
    Fungus parasites of Basidiomycota group are 
    • A. 

      Rust and smuts

    • B. 

      Mold and mildews

    • C. 

      Mushroom and cup fungi

    • D. 

      Yeast and penicillium