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Morphology of Flowering Plants

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

The floral formula [figure] is that of

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

Answer

(3) tobacco

Solution

In the given formula, shows an actinomorphic, bisexual flower; K(5) means five united sepals and C(5) five united petals.

A5 is joined to the corolla by an arc, so the five stamens are epipetalous, and G(2) shows a 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, so they do not fit.

∴ The formula is that of tobacco.

Answer: (3)

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Ques. 2AIPMT 2009

Vegetative propagation in mint occurs by

  1. offset
  2. rhizome
  3. sucker
  4. runner.
Ques. 3AIPMT 2008

The fleshy receptacle of syconus of fig encloses a number of

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

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

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

Replum is present in the ovary of flower of

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

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

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

Endosperm is consumed by developing embryo in the seed of

  1. pea
  2. maize
  3. coconut
  4. castor
Ques. 8AIPMT 2006

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
Ques. 9AIPMT 2006

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
Ques. 10AIPMT 2006

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

  1. Litchi
  2. Custard apple
  3. Pomegranate
  4. Orange
Ques. 11AIPMT 2005

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

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

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