Tag: kingdom plantae

Questions Related to kingdom plantae

Read statements $a-e$. How many are correct (a) In Equisetum the female gametophyte is retained on the parent sporophyte (b) In Ginkgo, male gametophyte is not independent (c) Riccia sporophyte is more developed than that in Polytrichum (d) Sexual reproduction in Volvox is isogamous (e) The spores of slime moulds lack cell walls.

botany kingdom plantae introduction to pteridophytes cryptogams pteridophyta pteridophytes

  1. One

  2. Two

  3. Three

  4. Four

Show answer
Correct Option: A

Give examples of division pteridophyta.

botany kingdom plantae introduction to pteridophytes cryptogams pteridophyta pteridophytes

  1. Adiantum and Lycopodium

  2. Marsilea and Selaginella

  3. Adiantum and Selaginella

  4. All of above

Show answer
Correct Option: D
Explanation:

Adiantum, Lycopodium, Marsilea and Selaginella are multicellular autotrophic plants, they belong to kingdom plantae, sub-kingdom: cryptogamae and division pteridophyta.

Which of the following features of angiosperm resemble gymnosperm?

botany kingdom plantae introduction to pteridophytes cryptogams pteridophyta pteridophytes

  1. Presence of ovules

  2. Presence of tracheids

  3. Nature of endosperm

  4. Mode of fertilisation

Show answer
Correct Option: B
Explanation:

Angiosperms are flowering plants. Gymnosperms are non-flowering plants. They are seedless plants. The main feature which is common to both of them is the presence of tracheids. Tracheids are vessel elements in plants. They help in the movement of water and minerals across the plants. 

So, option B " Presence of tracheids" is the correct option.

Identify the correct statement

botany kingdom plantae introduction to pteridophytes cryptogams pteridophyta pteridophytes

  1. All tracheophytes are spermatophytes

  2. All spermatophytes are thallophytes

  3. All tracheophytes are phanerogams

  4. All phanerogams are spermatophytes

Show answer
Correct Option: D
Explanation:

Tracheophytes are plants having dignified and developed vascular tissue for conducting water and minerals. Spermatophytes are plants that produce seeds. All tracheophytes are not spermatophytes (pteridophytes aren't spermatophytes). Phanerogams is however, an alternative them for spermatophytes.

So, the correct option is 'All phanerogams are spermatophytes'.

Cryptogams includes

botany kingdom plantae introduction to pteridophytes cryptogams pteridophyta pteridophytes

  1. Thallophyta

  2. Bryophyta 

  3. Pteridophyta

  4. All of the above

Show answer
Correct Option: D
Explanation:

Cryptogams are plant or plant-like orgnaisms which reproduce by spores. Examples include algae, lichens, liverworts, mosses ferns. They do not have true flowers or seeds. They include thallophyta, bryophyta and pteridophyta. In these, reproductive organs are hidden.

Thus, the correct answer is 'All of the above.'

Function of vascular tissue is 

botany kingdom plantae introduction to pteridophytes cryptogams pteridophyta pteridophytes

  1. To conduct water

  2. To conduct food, salts, minerals

  3. To provide strength

  4. Both A and B

Show answer
Correct Option: D
Explanation:

Vascular tissues are also known as conductive tissue, they help to conduct water and other substances from one part of the plant body to another. For example, ferns contain two types of vascular tissue, xylem and phloem, which move nutrients throughout the plant and allow them to grow tall. 

The hard fruit-bodies produced in Marsilea are called

botany kingdom plantae introduction to pteridophytes cryptogams pteridophyta pteridophytes

  1. Sporangia

  2. Sporophylls

  3. Ovule

  4. Sporocarps

Show answer
Correct Option: D

Which of the following are homosporous?

botany kingdom plantae introduction to pteridophytes cryptogams pteridophyta pteridophytes

  1. Salvinia, Equisetum

  2. Salvinia, Lycopodium

  3. Selaginella, Salvinia

  4. Lycopodium, Equisetum

Show answer
Correct Option: D
Explanation:

  • Homosporous plants are those which produce spores of one kind only that are not differentiated by sex. The spores of homosporous plants grow into bisexual gametophytes, producing both male and female gametes.
  • Lycopodium is a genus of clubmosses, belonging to the family Lycopodiaceae. It contains kidney-shaped or reniform sporangia which contain spores of one kind only (homosporous) and are borne on the upper surface of the leaf blade of specialized leaves (sporophylls).
  • Equisetum is the only living genus belonging to the family Equisetaceae. They are mostly homosporous, in which spores are borne under sporangiophores.
So, the correct answer is 'Lycopodium, Equisetum'.

Sporocarp is formed in

botany kingdom plantae introduction to pteridophytes cryptogams pteridophyta pteridophytes

  1. Adiantum

  2. Marsilea

  3. Equisetum

  4. Polypodium

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Correct Option: B

Plants having thallus body are known as

biology kingdom plantae introduction to pteridophytes cryptogams pteridophyta

  1. Pteridophyta

  2. Bryophyta

  3. Thallophyta

  4. None of these

Show answer
Correct Option: C
Explanation:
  • A thallus is composed of filaments or plates of cells and ranges in size from a unicellular structure to a complex tree-like form.
  • Thallophyta is a division of the plant kingdom including primitive forms of plant life showing a simple plant body i.e thallus like plant body. For example, unicellular to large algae, fungi, lichens.
  • The Thallophyta have been divided into two subdivisions. They are  Myxothallophyta (myxomycetes) and Euthallophyta (bacteria, fungi, lichens, algae).
  • Hence Plants having thallus bodies are known as 'Thallophyta'.