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Morphology of Flowering Plants

NEET 2016 (Phase 1)MCQEasy📈 Topic in 25% papers+4−1
Ques. 1NEET 2016 (Phase 1)

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

Answer

(3) Pitcher of Nepenthes

Solution

As per NCERT, stem tendrils (cucumber, pumpkin, grapevine), stem thorns ( Citrus, Bougainvillea) and flattened green stems ( Opuntia) are modifications of the stem.

⇒ In insectivorous plants like pitcher plant ( Nepenthes), the leaves are modified into pitchers.

∴ Pitcher of Nepenthes is a leaf modification, not a stem modification.

Answer: (3)

Keep practising — Morphology of Flowering Plants

Ques. 2NEET 2016 (Phase 1)

Stems modified into flat green organs performing the functions of leaves are known as

  1. phylloclades
  2. scales
  3. cladodes
  4. phyllodes.
Ques. 3NEET 2016 (Phase 1)

Cotyledon of maize grain is called

  1. coleoptile
  2. scutellum
  3. plumule
  4. coleorhiza.
Ques. 4NEET 2016 (Phase 1)

Tricarpellary, syncarpous gynoecium is found in flowers of

  1. Fabaceae
  2. Poaceae
  3. Liliaceae
  4. Solanaceae
Ques. 5NEET 2016 (Phase 1)

The standard petal of a papilionaceous corolla is also called

  1. vexillum
  2. corona
  3. carina
  4. pappus.
Ques. 6NEET 2016 (Phase 2)

The term 'polyadelphous' is related to

  1. gynoecium
  2. androecium
  3. corolla
  4. calyx.
Ques. 7NEET 2016 (Phase 2)

How many plants among Indigofera, Sesbania, Salvia, Allium, Aloe, mustard, groundnut, radish, gram and turnip have stamens with different lengths in their flowers?

  1. Three
  2. Four
  3. Five
  4. Six
Ques. 8NEET 2016 (Phase 2)

Radial symmetry is found in the flowers of

  1. Brassica
  2. Trifolium
  3. Pisum
  4. Cassia.
Ques. 9NEET 2016 (Phase 2)

Free-central placentation is found in

  1. Dianthus
  2. Argemone
  3. Brassica
  4. Citrus.
Ques. 10AIPMT 2015

Among China rose, mustard, brinjal, potato, guava, cucumber, onion and tulip, how many plants have superior ovary?

  1. Three
  2. Four
  3. Five
  4. Six
Ques. 11AIPMT 2015

Axile placentation is present in

  1. pea
  2. Argemone
  3. Dianthus
  4. lemon.

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