Multiple Choice Questions

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Transpiration and root pressure cause water to rise in plant by?

  • pulling it upward

  • pulling and pushing it, respectively

  • pulling it upward

  • pulling it upward


B.

pulling and pushing it, respectively

Transpiration causes water to rise in plants by pulling through xylem elements.
Root pressure causes water to rise in plants by pushing water in xylem components. 
So, the rise of water in plants is done by pulling and pushing via transpiration and root pressure respectively.

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Vascular bundles in monocotyledons are considered closed because

  • a bundle sheath surrounds each bundle

  • cambium is absent

  • there are no vessels with perforations

  • there are no vessels with perforations

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Which one of the following human organs is often called the “graveyard” of RBCs?

  • Gall bladder

  • kidney

  • Spleen

  • Spleen

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Perigynous flowers are found in

  • guava

  • cucumber

  • China rose

  • China rose

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Leaves become modified into spines in

  • Opuntia

  • pea

  • onion

  • onion

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Minerals known to be required in large amounts for plant growth include

  • phosphorus, potassium, sulphur, calcium

  • calcium, magnesium, manganese, copper

  • potassium, phosphorus, selenium, boron

  • potassium, phosphorus, selenium, boron

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A major characteristic of the monocot root is the presence of

  • Open vascular bundles

  • Scattered vascular bundles

  • Vasculature without cambium

  • Vasculature without cambium

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True nucleus is absent in 

  • Anabaena

  • Mucor

  • Vaucheria

  • Vaucheria

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 is the floral formula of
  • Allium

  • Sesbania

  • Petunia

  • Petunia

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Which one of the following is not an inclusion body found in prokaryotes?

  • Phosphate granule

  • Cyanophycean granule

  • Glycogen granule

  • Glycogen granule

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