Tag: kingdom plantae

Quizzes (15) Questions (428)

Questions Related to kingdom plantae

Multiple choice botany kingdom plantae introduction to pteridophytes cryptogams pteridophyta pteridophytes

The heterosporous pteridophytes are ______________.

  1. Lycopodium and Pteris

  2. Selaginella and Psilotum

  3. Selaginella and Salvinia

  4. Dryopteris and Adiantum
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

Heterospory is the production of spores of two different sizes and of two different developmental patterns -smaller male or microspores and larger female or megaspores. Heterospory is the most important evolutionary development in vascular plants because it has ultimately led to seed development, e.g., Selaginella, Salvinia, Azolla, etc.

So the correct option is C.

Multiple choice botany kingdom plantae introduction to pteridophytes cryptogams pteridophyta pteridophytes

 Match column I with column II and select the correct options from the codes given below.

Column I Column II
A. Psilopsida  (i) Psilotum
B. Lycopsida (ii) Equisetum
C. Sphenopsida (iii) Selaginella
D. Pteropsida (iv) Dryopteris

  1. A-(i), B-(ii), C-(iii), D-(iv)

  2. A-(i), B-(iv), C-(iii), D-(ii)

  3. A-(i), B-(iii), C-(ii), D-(iv)

  4. A-(i), B-(iii), C-(iv), D-(ii)
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

(A) Psilopsida - Psilotum

(B) Lycopsida - Selaginella
(C) Sphenopsida - Equisetum
(D) Pteropsida - Dryopteris
So, the correct answer is (c).

Multiple choice botany kingdom plantae introduction to pteridophytes cryptogams pteridophyta pteridophytes

What is common to the following plants: Nepenthes, Psilotum, Rauwolfia, and Aconitum?

  1. All are ornamental plants.

  2. All are phylogenic link species.

  3. All are prone to over exploitation.

  4. All are exclusively present in the Eastern Himalayas.
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

Nepenthes is also known as the pitcher plant. It is an insectivorous plant. Psilotum is a pteridophyte and it is used for medicinal purpose. Aconitum is a medicinal plant. Rauwolfia is also a medicinal plant. 


We can see that all the plants have distinctive properties and used due to which these plants are very prone to exploitation. Thus, the one character that is common in all plants is, all these plants are prone to over-exploitation. 
So, the correct answer is 'All are prone to overexploitation'.


So, the correct answer is 'All are prone to overexploitation'.

Multiple choice botany kingdom plantae introduction to pteridophytes cryptogams pteridophyta pteridophytes

In ________, a dominant and independent diploid sporophyte alternates with a short-lived, independent haploid gametophyte.

  1. algae

  2. bryophytes

  3. pteridophytes

  4. gymnosperms
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

ln pteridophytes, the diploid sporophyte is represented by a dominant, independent, photosynthetic, vascular plant body. It alternates with multicellular, saprophytic autotrophic, independent but short-lived haploid gametophyte.

So the correct option is C.

Multiple choice botany kingdom plantae introduction to pteridophytes cryptogams pteridophyta pteridophytes

Which of the following is called as club moss?

  1. Pteris

  2. Lycopodium

  3. Equisetum

  4. Marsilea
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation
Lycopodium is a genus of clubmosses, also known as ground pines or creeping cedar
They are flowerless, vascular, terrestrial or epiphytic plants, with widely branched, erect, prostrate or creeping stems, with small, simple, needle-like or scale-like leaves that cover the stem and branches thickly. The leaves contain a single, unbranched vascular strand and are microphylls by definition.
Multiple choice botany kingdom plantae introduction to pteridophytes cryptogams pteridophyta pteridophytes

Pteridophytes differ from thallophytes and bryophytes in having

  1. Highly differentiated plant body

  2. True roots, stem and leaves

  3. Well defined vascular system

  4. All of the above
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

The body of pteridophytes is differentiated into true stem, leaves and roots like higher plants. They possess well-developed vascular tissues like xylem and phloem for conduction of water and other substances from one part of plant body to another. While the body of thallophytes and bryophytes are not differentiated and lacks vascular system.

Therefore, the correct answer is option D.

Multiple choice botany kingdom plantae introduction to pteridophytes cryptogams pteridophyta pteridophytes

Most advanced gymnosperm belongs to

  1. Cycadales

  2. Coniferales

  3. Gnetales

  4. Cycadofillicales
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

The Gnetophyta are a small group of vascular seed plants belonging to the phylum Gnetophyta.
The Gnetophyta include only three genera, Ephedra, Gnetum, and Welwitschia, each of which belongs to a separate family, in a single order, called as the Gnetales. 

The gnetophytes have a number of features in common with the flowering plants (phylum Anthophyta, the angiosperms), which shows that Gnetales are more advanced in gymnosperms.