Tag: kingdom plantae

Quizzes (15) Questions (428)

Questions Related to kingdom plantae

Multiple choice botany kingdom plantae introduction to pteridophytes cryptogams pteridophyta pteridophytes

What happens to motile spore after it ejects from sporophytes in pteridophyte plants?

  1. It germinates to become another spore forming a fern plant

  2. It germinates to become a prothallus

  3. It joins with another spore to become a seedling

  4. It encysts and devours by snail-like organisms
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

Pteridophytes are seedless ferns. They use sexual and asexual mode of reproduction. Spores produced by pteridophytes that help in sexual reproduction. These spores are carried long distances for pollination by abiotic factors like wind, water, etc. Once the spore reaches its destination, it releases the male gametes into the female reproductive system and merges with the female gamete. After successful divisions, it germinates to become prothallus, i.e, the young ones of pteridophytes. So, the correct answer is option B.

Multiple choice botany kingdom plantae introduction to pteridophytes cryptogams pteridophyta pteridophytes

Which of the following division of kingdom plantae and sub-kingdom cryptogamae can reproduce sexually by formation of gametes.

  1. Thallophyta

  2. Bryophyta

  3. Pteridophyta

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

Pteridophyta is the only division of sub-kingdom cryptogamae that can reproduce both, sexually by formation of spores as well as sexually by formation of gametes.

Multiple choice botany kingdom plantae introduction to pteridophytes cryptogams pteridophyta pteridophytes

What is the mode of reproduction in Pteridophyta?

  1. Asexually by spores

  2. Sexually by formation of gametes

  3. Both A and B

  4. None of above
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

Pteridophyta are multicellular, autotrophic plants, they can reproduce asexually as well as sexually. They reproduce asexually by formation of spores and sexually by the formation of gametes.

Multiple choice botany kingdom plantae introduction to pteridophytes cryptogams pteridophyta pteridophytes

Which is important in development of seed habit?

  1. Dependent sporophyte

  2. Haplontic life cycle

  3. Heterospory

  4. Free living gametophyte
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

Heterospory is considered a crucial evolutionary step toward the seed habit, as it leads to the retention of the megaspore and the development of the female gametophyte within the parent plant.

Multiple choice botany kingdom plantae introduction to pteridophytes cryptogams pteridophyta pteridophytes

A vascular cryptogam is

  1. Equisetum

  2. Cedrus

  3. Marchantia

  4. Ginkgo
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

Equisetum is a genus of Pteridophyta division. They are called as cryptogam. Vascular cryptogamic plants are those plants which have vascular system and do not have seeds. Equisetum is a vascular plant bearing hidden seeds.

Thus, the correct answer is option A.

Multiple choice botany kingdom plantae introduction to pteridophytes cryptogams pteridophyta pteridophytes

Choose the correct answers from the alternatives given.
In the fern cycle, which of the following generation is dominant?

  1. Haploid gametophyte

  2. Diploid gametophyte

  3. Haploid sporophyte

  4. Diploid sporophyte
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation
In the fern cycle, the sporophyte generation is dominant because the fern does not possess seeds, they only possess spores and thus diploid sporophyte is the dominant generation. In fern, gametophytes are tiny and only live for a few days. 
Multiple choice botany kingdom plantae introduction to pteridophytes cryptogams pteridophyta pteridophytes

In fern, rhizome

  1. Vessels are absent.

  2. Sieve tubes are absent.

  3. Parenchyma is absent.

  4. Tracheids are absent.
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

Fern stems are often called rhizomes, but this term refers to those with a long-creeping or climbing habit. If the stem is short and compact and radially symmetric, either erect, prostrate or ascending then it is called a caudex or rootstock. In some cases, the caudex is erect and tree-like with an apical radial tuft of leaves in which case it is often called a trunk. The rhizomes of ferns are very rarely naked and usually have some form of covering, especially on their growing tips, to provide protection from the extremes of temperature, desiccation, predation and physical abrasion. The rhizome have sieve tubes but there are no vessels. 

So, the correct answer is option A.

Multiple choice botany kingdom plantae introduction to pteridophytes cryptogams pteridophyta pteridophytes

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

Column I Column II
A. Pteris (i) Bryophyte
B. Cedrus (ii) Pteridophyte
C. Sonchus (iii) Gymnosperm
D. Marchantia (iv) Angiosperm

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

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

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

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

(A) Pteris - Pteridophyte

(B) Cedrus - Gymnosperm
(C) Sonchus - Angiosperm
(D) Marchantia - Bryophyte
So, the correct answer is (a).