Tag: kingdom plantae

Quizzes (15) Questions (428)

Questions Related to kingdom plantae

Multiple choice botany kingdom plantae introduction to pteridophytes cryptogams pteridophyta pteridophytes

Match the columns and select the correct option.

      $I$        $II$
$(a)$ Chloropohyts $(i)$ Equisetum
$(b)$ Lycopsida $(ii)$ Chara
$(c)$ Rhaeophyta $(iii)$ Selaginella
$(d)$ Sphenopsida $(iv)$ Ectocarpus
  1. $a - ii, b - iii, c - iv, d - i$
  2. $a - iv, b - i, c - ii, d - iii$
  3. $a - ii, b - iii, c - i, d - iv$
  4. $a - iv, b - i, c - iii, d - ii$
Reveal answer Fill a bubble to check yourself
A Correct answer
Multiple choice botany kingdom plantae introduction to pteridophytes cryptogams pteridophyta pteridophytes

Which one is a Water Fern?

  1. Azolla

  2. Salvinia

  3. Marsilea

  4. All the above
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation
  • Azolla is a genus of seven species of aquatic ferns belonging to family Salviniaceae. They are extremely reduced in form and specialized. They look similar to duckweeds and mosses.
  • Salvinia, commonly known as Watermoss is a genus belonging to family Salviniaceae. It is a floating aquatic fern. Salvinia is related to other water ferns such as Azolla. 
  • Marsilea, commonly known as water clover and four-leaf clover is a genus of approximately 65 species of aquatic ferns belonging to family Marsileaceae.
  • Hence Azolla, Salvinia and marsilea are water ferns.
  • So, the correct answer is 'All the above'.
Multiple choice botany kingdom plantae introduction to pteridophytes cryptogams pteridophyta pteridophytes

A vascular cryptogam is

  1. Cedrus

  2. Ginkgo

  3. Marchantia

  4. Equisetum
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

Vascular cryptogams are plants that possess vascular tissue (xylem and phloem) but reproduce via spores rather than seeds. Equisetum is a pteridophyte, which fits this definition, whereas Marchantia is a bryophyte (non-vascular) and Cedrus/Ginkgo are gymnosperms (seeded).

Multiple choice botany kingdom plantae introduction to pteridophytes cryptogams pteridophyta pteridophytes

In pteridophytes, reduction division occurs when ___________________.

  1. Porthallus is formed.

  2. Sex organs are formed.

  3. Spores are formed.

  4. Gametes are formed.
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

In pteridophytes, the main plant body is the sporophyte (2n). Meiosis or reduction division occurs during spore formation within the sporangia to produce haploid spores (n), which subsequently germinate into the gametophyte generation.

Multiple choice botany kingdom plantae introduction to pteridophytes cryptogams pteridophyta pteridophytes

Match List-I with List-II and select the correct answer.

List-I(Plant) List-II(Stellar type)
a. Lycopodium $1$. Dictyostele
b. Rhynia $2$. Haplostele
c. Marsilea $3$. Solenostele
d. Polypodium $4$. Plectostele
  1. A-$4$, B-$2$, C-$3$, D-$1$
  2. A-$2$, B-$3$, C-$4$, D-$1$
  3. A-$2$, B-$3$, C-$1$, D-$4$
  4. A-$4$, B-$2$, C-$1$, D-$4$
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

Lycopodium has plectostele (4), Rhynia has haplostele (2), Marsilea has solenostele (3), and Polypodium has dictyostele (1).