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Morphology of Flowering Plants

NEET 2013 (Karnataka)MCQMedium📈 Topic in 12% papers+4−1
Ques. 1NEET 2013 (Karnataka)

How many plants among China rose, Ocimum, sunflower, mustard, Alstonia, guava, Calotropis and Nerium (oleander) have opposite phyllotaxy?

  1. Three
  2. Four
  3. Five
  4. Two

Answer

(1) Three

Solution

As per NCERT, in opposite phyllotaxy a pair of leaves arises at each node and lie opposite each other, as in Calotropis and guava.

Thus Ocimum (tulsi), guava and Calotropis have opposite leaves, whereas China rose, sunflower and mustard have alternate leaves and Alstonia and Nerium have whorled leaves.

∴ Number of plants with opposite phyllotaxy = 3.

Answer: (1)

Keep practising — Morphology of Flowering Plants

Ques. 2AIPMT 2012 (Mains)

Which one of the following organisms is correctly matched with its three characteristics?

  1. Pea : C3 pathway, endospermic seed, vexillary aestivation
  2. Tomato : twisted aestivation, axile placentation, berry
  3. Onion : bulb, imbricate aestivation, axile placentation
  4. Maize : C3 pathway, closed vascular bundles, scutellum
Ques. 3AIPMT 2012 (Mains)

How many plants in the list given below have marginal placentation? Mustard, Gram, Tulip, Asparagus, Arhar, Sun hemp, Chilli, Colchicum, Onion, Moong, Pea, Tobacco, Lupin

  1. Four
  2. Five
  3. Six
  4. Three
Ques. 4AIPMT 2012 (Prelims)

Placentation in tomato and lemon is

  1. parietal
  2. free central
  3. marginal
  4. axile
Ques. 5AIPMT 2012 (Prelims)

Cymose inflorescence is present in

  1. Solanum
  2. Sesbania
  3. Trifolium
  4. Brassica
Ques. 6AIPMT 2012 (Prelims)

Phyllode is present in

  1. Asparagus
  2. Euphorbia
  3. Australian Acacia
  4. Opuntia
Ques. 7AIPMT 2012 (Prelims)

The gynoecium consists of many free pistils in flowers of

  1. Aloe
  2. tomato
  3. Papaver
  4. Michelia
Ques. 8AIPMT 2012 (Prelims)

How many plants in the list given below have composite fruits that develop from an inflorescence? Walnut, poppy, radish, fig, pineapple, apple, tomato, mulberry.

  1. Four
  2. Five
  3. Two
  4. Three
Ques. 9AIPMT 2012 (Prelims)

The coconut water and the edible part of coconut are equivalent to

  1. endosperm
  2. endocarp
  3. mesocarp
  4. embryo
Ques. 10AIPMT 2012 (Prelims)

Vexillary aestivation is characteristic of the family

  1. Fabaceae
  2. Asteraceae
  3. Solanaceae
  4. Brassicaceae
Ques. 11AIPMT 2011 (Mains)

Whorled, simple leaves with reticulate venation are present in

  1. Calotropis
  2. neem
  3. China rose
  4. Alstonia.

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