Tea and coffee are affected by from Biology Plant Kingdom

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 Multiple Choice QuestionsMultiple Choice Questions

121.

Which one of the following pairs is mismatched?

  • Savanna - Acacia trees

  • Prairie - Epiphytes

  • Tundra - Permafrost

  • Coniferous forest - Evergreen trees


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122.

Tea and coffee are affected by

  • Phytophthora

  • Cephaleuros

  • Herviella

  • Albugo candida


B.

Cephaleuros

The green algae Cephaleuros virescens causes red rust of tea. Thus, destroying the tea leaves. Similar disease is caused by the species of Cephaleuros to coffee plant, piper and Citrus species.


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123.

Though Cycas has 2 cotyledons, this is not included in dicot because

  • naked ovule

  • they have megaspore

  • appears as palm tree

  • has compound leaves


124.

The modified stem of Opuntia is

  • phyllode

  • phylloclade

  • cladode

  • stamroinode


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125.

Mannitol is reserve food in

  • Rhodophyceae

  • Chlorophyceae

  • Phaeophyceae

  • Xanthophyceae


126.

Plants growing on sand and gravel are called

  • eremophytes

  • psammophytes

  • psilophytes

  • oxylophytes


127.

The inflorescence in Ocimum is

  • cyathium

  • verticillaster

  • hypanthodium

  • raceme


128.

Cellulose fibre is obtained from Gossypium.

  • stem surface

  • seed hair

  • leaf surface

  • root hair


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129.

The amphibians of plant kingdom are

  • multicellular non motile algae

  • bryophytes with simple internal organisation

  • unicellular motile algae

  • pteridophytes with complex internal organisation.


130.

In Chlorophyceae the mode of sexual reproduction is

  • anisogamy

  • isogamy

  • oogamy

  • all of these


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