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Plant Kingdom · Question 92

AIPMT 2004MCQEasy📈 Topic in 0% papers+4−1
1

Angiosperms have dominated the land flora primarily because of their

  1. power of adaptability in diverse habitat
  2. property of producing large number of seeds
  3. nature of self pollination
  4. domestication by man

Answer

(1) power of adaptability in diverse habitat

Solution

Angiosperms (flowering plants) occupy a very wide range of habitats — from tiny Wolffia to tall Eucalyptus trees, aquatic to desert plants.

⇒ Their great power of adaptability to diverse habitats (efficient vascular tissue, protected seeds inside fruits, varied pollination) is the main reason for their dominance on land.

Answer: (1)

AIPMT 2004

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2

Which one of the following is living fossil ?

  1. Cycas
  2. Moss
  3. Spirogyra
  4. Saccharomyces
AIPMT 2004
3

Phenetic classification of organisms is based on

  1. observable characteristics of existing organisms
  2. the ancestral lineage of existing organisms
  3. dendrogram based on DNA characteristics
  4. sexual characteristics.
AIPMT 2003
4

Which one of the following pairs of plants are not seed producers?

  1. Fern and Funaria
  2. Funaria and Ficus
  3. Ficus and Chlamydomonas
  4. Funaria and Pinus
AIPMT 2003
5

Sexual reproduction in Spirogyra is an advanced feature because it shows

  1. different sizes of motile sex organs
  2. same size of motile sex organs
  3. morphologically different sex organs
  4. physiologically differentiated sex organs.
AIPMT 2003
6

Plants reproducing by spores such as mosses and ferns are grouped under the general term

  1. cryptogams
  2. bryophytes
  3. sporophytes
  4. thallophytes.
AIPMT 2003
7

Which one pair of examples will correctly represent the grouping spermatophyta according to one of the schemes of classifying plants?

  1. Acacia, sugarcane
  2. Pinus, Cycas
  3. Rhizopus, Triticum
  4. Ginkgo, Pisum
AIPMT 2003
8

Which one of the following is categorised under living fossils ?

  1. Cycas
  2. Metasequoia
  3. Pinus
  4. Selaginella
AIPMT 2003
9

Chlorenchyma is known to develop in the :

  1. Mycelium of a green mould such as Aspergillus
  2. Pollen tube of Pinus
  3. Cytoplasm of Chlorella
  4. Spore capsule of a moss
AIPMT 2003
10

Which of the following is without exception in angiosperms?

  1. Presence of vessels
  2. Double fertilisation
  3. Secondary growth
  4. Autotrophic nutrition
AIPMT 2002
11

Which of the following plants produces seeds but not flowers?

  1. Maize
  2. Mint
  3. Peepal
  4. Pinus
AIPMT 2002

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