10 - Science - 04. Biology - Reproduction In Plants

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10 - Science - 04. Biology - Reproduction In Plants

Prepared By Mr. S. Ravikumar, B. T. Asst. , GHS, Arangaldhurgam, Vellore District.                              &  www. Padasalai. Net  


Questions and Answers
  • 1. 
    This is the one of the methods of reproduction in unicellular organisms like amoeba and bacteria in which they split into two equal halves and produce new ones is called_________
    • A. 

      Fragmentation

    • B. 

      Binary fission

    • C. 

      Budding

    • D. 

      Spore formation

  • 2. 
    In sexual reproduction of lowering plants, the first event involved in this is ___________
    • A. 

      Fertilization

    • B. 

      Germination

    • C. 

      Regeneration

    • D. 

      Pollination

  • 3. 
    • A. 

      Thin walled non mobile spores are called zoospores

    • B. 

      A motile asexual spore produced by some algae bacteria and fungi are Akinetes

    • C. 

      Uninucleate non-motile asexual spores are produced by the fungus are called conidia

    • D. 

      Thick walled vegetative cells produced by the algae during adverse conditions are called aplanospores

  • 4. 
    The fertilized ovary is a fruit. The fruit develops from a single lower with multi carpellary, apocarpous superior ovary is _____
    • A. 

      Aggregate fruit

    • B. 

      Composite fruit

    • C. 

      Simple fruit

    • D. 

      Multiple fruit

  • 5. 
    If a water soaked seed is pressed, a small drop of water comes out through _________
    • A. 

      Stomata

    • B. 

      Lenticel

    • C. 

      Micropyle

    • D. 

      Radicle

  • 6. 
    The mango fruit is called as stone fruit. because it has _________
    • A. 

      Skinny epicarp

    • B. 

      Stony mesocarp

    • C. 

      Fleshy endocarp

    • D. 

      Hard endocarp Hard endocarp Hard endocarp

  • 7. 
    Pick out the wrong statement.
    • A. 

      In a dicot seed there is a short longitudinal whitish ridge is called the raphae

    • B. 

      There is a minute opening in dicot seed is known as micropyle.

    • C. 

      The rudimentary stem portion known as radicle.

    • D. 

      The rudimentary root portion is called radicle

  • 8. 
    Consider the following statement regarding the dispersal of fruit by wind and select the correct answer.
    • A. 

      Fruits and seeds dispersed with a sudden jerk by an explosive mechanism.

    • B. 

      Fruits of tridax are carry a persistent calyx modified into pappus.

    • C. 

      The fruits of xanthium have sharp pointed stiff hooks.

    • D. 

      The mesocarp of coconut is fibres.

  • 9. 
    The product of triple fusion which acts as nutritive tissue for the development of embryo is ______
    • A. 

      Zygote

    • B. 

      Placenta

    • C. 

      Scutellum

    • D. 

      Endosperm

  • 10. 
    The disadvantage of self pollination is _______
    • A. 

      There is no wastage of pollen grains

    • B. 

      The seeds are less in number

    • C. 

      Self pollination is sure in bisexual flowers

    • D. 

      Flowers need not depend on agents of pollination