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Morphology of Flowering Plants · Question 38

NEET 2017MCQEasy📈 Topic in 12% papers+4−1
1

Root hairs develop from the region of :

  1. Meristematic activity
  2. Root cap
  3. Maturation
  4. Elongation

Answer

(3) Maturation

Solution

As per NCERT, the cells proximal to the region of elongation gradually differentiate and mature; hence this zone is called the region of maturation.

From this region some of the epidermal cells form very fine and delicate thread-like structures called root hairs, which absorb water and minerals from the soil.

Answer: (3)

NEET 2017

Keep practising — Morphology of Flowering Plants

2

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
NEET 2016 (Phase 1)
3

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

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

Cotyledon of maize grain is called

  1. coleoptile
  2. scutellum
  3. plumule
  4. coleorhiza.
NEET 2016 (Phase 1)
5

Tricarpellary, syncarpous gynoecium is found in flowers of

  1. Fabaceae
  2. Poaceae
  3. Liliaceae
  4. Solanaceae
NEET 2016 (Phase 1)
6

The standard petal of a papilionaceous corolla is also called

  1. vexillum
  2. corona
  3. carina
  4. pappus.
NEET 2016 (Phase 1)
7

The term 'polyadelphous' is related to

  1. gynoecium
  2. androecium
  3. corolla
  4. calyx.
NEET 2016 (Phase 2)
8

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
NEET 2016 (Phase 2)
9

Radial symmetry is found in the flowers of

  1. Brassica
  2. Trifolium
  3. Pisum
  4. Cassia.
NEET 2016 (Phase 2)
10

Free-central placentation is found in

  1. Dianthus
  2. Argemone
  3. Brassica
  4. Citrus.
NEET 2016 (Phase 2)
11

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
AIPMT 2015

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