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Morphology of Flowering Plants · Question 99

AIPMT 2009MCQMedium📈 Topic in 62% papers+4−1
1

The floral formula [figure] is that of

  1. soybean
  2. sunhemp
  3. tobacco
  4. tulip

Answer

(3) tobacco

Solution

The given formula shows:

⇒ : actinomorphic flower; bisexual.

⇒ K(5): five united sepals; C(5): five united petals.

⇒ A5 joined to the corolla by an arc: five epipetalous stamens.

⇒ G(2): bicarpellary, syncarpous gynoecium with a superior ovary.

As per NCERT, this is the floral formula of Solanaceae, and tobacco belongs to Solanaceae.

∵ Soybean and sunhemp (Fabaceae) have zygomorphic flowers with diadelphous stamens, and tulip (Liliaceae) has a trimerous perianth,

∴ the formula is that of tobacco.

Answer: (3)

AIPMT 2009

Keep practising — Morphology of Flowering Plants

2

Vegetative propagation in mint occurs by

  1. offset
  2. rhizome
  3. sucker
  4. runner.
AIPMT 2009
3

The fleshy receptacle of syconus of fig encloses a number of

  1. berries
  2. mericarps
  3. achenes
  4. samaras
AIPMT 2008
4

Dry indehiscent single-seeded fruit formed from bicarpellary syncarpous inferior ovary is

  1. berry
  2. cremocarp
  3. caryopsis
  4. cypsella
AIPMT 2008
5

Replum is present in the ovary of flower of

  1. sunflower
  2. pea
  3. lemon
  4. mustard
AIPMT 2008
6

The fruit is chambered, developed from inferior ovary and has seeds with succulent testa in

  1. guava
  2. cucumber
  3. pomegranate
  4. orange
AIPMT 2008
7

Endosperm is consumed by developing embryo in the seed of

  1. pea
  2. maize
  3. coconut
  4. castor
AIPMT 2008
8

Pentamerous actinomorphic flowers, bicarpellary ovary with oblique septa, and fruit capsule or berry, are characteristic features of

  1. Liliaceae
  2. Asteraceae
  3. Brassicaceae
  4. Solanaceae
AIPMT 2006
9

Pineapple (ananas) fruit develops from

  1. a multilocular monocarpellary flower
  2. a unilocular polycarpellary flower
  3. a multipistillate syncarpous flower
  4. a cluster of compactly borne flowers on a common axis
AIPMT 2006
10

In which of the following fruits, the edible part is the aril?

  1. Litchi
  2. Custard apple
  3. Pomegranate
  4. Orange
AIPMT 2006
11

Which of the following represents the edible part of the fruit of litchi?

  1. Mesocarp
  2. Endocarp
  3. Pericarp
  4. Juicy aril
AIPMT 2005

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