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Morphology of Flowering Plants · Question 33

NEET (UG) 2019MCQEasy📈 Topic in 75% papers+4−1
1

Placentation, in which ovules develop on the inner wall of the ovary or in peripheral part, is :

  1. Parietal
  2. Free central
  3. Basal
  4. Axile

Answer

(1) Parietal

Solution

As per NCERT, in parietal placentation the ovules develop on the inner wall of the ovary or on the peripheral part, e.g., mustard and Argemone.

⇒ Axile: placenta is axial; free central: ovules on a central axis without septa; basal: placenta at the base of the ovary.

Answer: (1)

NEET (UG) 2019

Keep practising — Morphology of Flowering Plants

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Sweet potato is a modified

  1. adventitious root
  2. rhizome
  3. stem
  4. taproot
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3

Pneumatophores occur in

  1. halophytes
  2. free-floating hydrophytes
  3. carnivorous plants
  4. submerged hydrophytes
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4

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  1. berry
  2. nut
  3. capsule
  4. drupe
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5

In Bougainvillea, thorns are the modifications of

  1. adventitious root
  2. stem
  3. leaf
  4. stipules
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  1. Meristematic activity
  2. Root cap
  3. Maturation
  4. Elongation
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7

Which of the following is not a stem modification?

  1. Tendrils of cucumber
  2. Flattened structures of Opuntia
  3. Pitcher of Nepenthes
  4. Thorns of Citrus
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Stems modified into flat green organs performing the functions of leaves are known as

  1. phylloclades
  2. scales
  3. cladodes
  4. phyllodes.
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  1. coleoptile
  2. scutellum
  3. plumule
  4. coleorhiza.
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  1. Fabaceae
  2. Poaceae
  3. Liliaceae
  4. Solanaceae
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The standard petal of a papilionaceous corolla is also called

  1. vexillum
  2. corona
  3. carina
  4. pappus.
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