ICSE Class VIII Biology Solutions

Displaying 5 out of 17 questions & answers.
Q1.

Fill in the blanks.

  1. The type of reproduction which involves only one parent is ____________________.
  2. Science of cultivating fruits, vegetables, flowers or ornamental plants is ____________________.
  3. The part of the embryo which forms the shoot is called ______________.
  4. In epigeal germination, the ________________ elongates.
  5. Flowers which have both stamens and carpel are called ______________ or ________________.
  6. The portion of stem above the cotyledon is called __________________.
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Answer:
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  1. Asexual reproduction
  2. Horticulture
  3. Radicle
  4. Hypocotyls
  5. Bisexual or perfect
  6. Epicotyl (gives rise to stem)
Q2.

Mark the statements True or False. Correct the false ones.

  1. The hilum bursts when a seed imbibes water.
  2. Dry seeds do not have active enzymes.
  3. The plumule emerges before the radicle.
  4. Autogamy is also known as cross pollination.
  5. Scion is the short piece of stem containing buds used for grafting.
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Answer:
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  1. False
    Hilum swells when a seed imbibes water.
  2. True
  3. False
    The radicle emerges before the plumule.
  4. False
    Autogamy is also known as self pollination.
  5. True
Q3.

Match the words in Column 1 with phrases in Column 2.

Column 1Column 2
a. Rhizomei. product of fusion of gametes
b. Embryoii. fusion of male and female gametes
c. Hybridisationiii. stem modified for reproduction
d. Zygoteiv. asexual reproduction
e. Pollenv. consists of radicle and plumule
f. Vegetative propagationvi. develop into seeds
g. Ovulesvii. artificial crossing of two plants
h. Fertilizationviii. male gamete

 

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Q4.

Give the scientific terms for the following:

  1. Seed coat
  2. Small hole in seed coat
  3. Sheath that covers the plumule
  4. Tissue in which food is stored in monocots
  5. Point of attachment of the seed to fruit
  6. Portion of stem below the cotyledon
  7. Crossing two different varieties
  8. Asexual reproduction where an organism splits into many fragments
  9. Embryonic root
  10. Seed leaf
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Answer:
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  1. Testa
  2. Micropyle
  3. Coleorhiza
  4. Cotyledons
  5. Micropyle
  6. Hypocotyl
  7. Hybridization
  8. Multiple fission
  9. Radicle
  10. Cotyledons
Q5.

Describe in brief the process of germination.

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