Multiple Choice Questions

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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


A.

phosphorus, potassium, sulphur, calcium

Minerals known to be required in large amounts for plant growth are macronutrients. According to question, option (a) is correct, i.e., phosphorus, potassium, sulphur, calcium.
Macronutrients are consumed in large quantities and are required for plant tissue from 0.2% to 0.4% (on dry matter weight basis). Following are the rest of the macronutrients as:
carbon, hydrogen, oxygen, nitrogen, magnesium, silicon. 

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Leaves become modified into spines in

  • Opuntia

  • pea

  • onion

  • onion

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 is the floral formula of
  • Allium

  • Sesbania

  • Petunia

  • Petunia

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True nucleus is absent in 

  • Anabaena

  • Mucor

  • Vaucheria

  • Vaucheria

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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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Perigynous flowers are found in

  • guava

  • cucumber

  • China rose

  • China rose

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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 is not an inclusion body found in prokaryotes?

  • Phosphate granule

  • Cyanophycean granule

  • Glycogen granule

  • Glycogen granule

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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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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

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