Tag: botany

Quizzes (264) Questions (5276)

Questions Related to botany

Multiple choice botany kingdom plantae uses of bryophytes introduction to bryophytes cryptogams

Antherozoids of Marchantia are

  1. Short, curved and biflagellate

  2. Short, straight and multiflagellate

  3. Long, straight and biflagellate

  4. Long, curved and biflagellate
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

The antherozoids of Marchantia are biflagellate, short, and curved, designed for swimming to the archegonia in a water film.

Multiple choice botany kingdom plantae uses of bryophytes introduction to bryophytes cryptogams

In which of the following elater mother cells and spore mother cells belong to the same generation?

  1. Marchantia

  2. Reboulia

  3. Riccardia

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

In Marchantia, both the elater mother cells and spore mother cells are derived from the same sporogenous tissue within the capsule, thus belonging to the same generation.

Multiple choice botany kingdom plantae uses of bryophytes introduction to bryophytes cryptogams

Five rowed archegonial neck occurs in ____________.

  1. Marchantia

  2. Funaria

  3. Porella / Madotheca

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

The answer is option C i.e. "Porella/ Madotheca"


Archegonia are the female reproductive part located on the surface of the plant thallus in bryophytes and pteridophytes.
  • In Porella/ Madotheca archegonial neck is long, comprises of five vertical rows of neck cells.
  • In Marchantia, the archegonial neck is arranged in 8 rows.
  • In Funaria, the archegonial neck is single-layered or rowed.
  • In Riccia, the archegonial neck consists of six vertical rows.

Multiple choice botany kingdom plantae uses of bryophytes introduction to bryophytes cryptogams

Consider the folowing statements
Marchantia polymorpha
1. is dioecious
2. possesses antheriodophores and archegoniophores.
3. lacks foot and seta in its sporophyte
4. is heterosporous.
Which of these statements are corrct?

  1. 1 and 2

  2. 3 and 4

  3. 1 and 4

  4. 2 and 3
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

Marchantia polymorpha is dioecious (separate male and female plants) and produces antheridiophores and archegoniophores. It is homosporous, not heterosporous, and its sporophyte does possess a foot and seta.