Tag: pictorial feature of plant kingdom

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Questions Related to pictorial feature of plant kingdom

Multiple choice botany pictorial feature of plant kingdom classification of bryophytes types of bryophytes bryophyta

Which place in India is called "The Golden Mine of Liverworts"?

  1. Eastern Himalayas

  2. Western Himalayas

  3. Western Ghats

  4. Eastern Ghats

  5. Sundarbans
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation
  • Liverwort is a small flowerless green plant with leaf-like stems or lobes leaves, occurring in moist habitat.
  • It lacks true roots and reproduces by means of spores released from capsules.
  • The  Golden Mine of Liverworts is the western Himalayas. There are 320 endemic species of liverworts in this region.
  • So, the correct answer is 'Westerns Himalayas'.
Multiple choice botany pictorial feature of plant kingdom classification of bryophytes types of bryophytes bryophyta

Sporogenous tissue is of amphithecial origin in

  1. Riccia

  2. Anthoceros

  3. Marchantia

  4. Funaria
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

In Anthoceros, the sporogenous tissue (archesporium) develops from the outer layer of the capsule, which is the amphithecium, surrounding the central columella. In contrast, the sporogenous tissue in Riccia and Marchantia is of endothecial origin.

Multiple choice botany pictorial feature of plant kingdom classification of bryophytes types of bryophytes bryophyta

A dioecious gametophyte is seen in the case of______________.

  1. Funaria

  2. Riccia

  3. Marchantia

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

Marchantia has a dioecious gametophyte. Dioecy is a characteristic of a species, meaning that it has distinct male and female individual organisms or colonies, meaning that a colony contains only either male or female individual. 

Multiple choice botany pictorial feature of plant kingdom classification of bryophytes types of bryophytes bryophyta

Which of the following is a hornwort?

  1. Funaria

  2. Sphagnum

  3. Anthoceros

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

Anthoceros is a genus of hornworts in the family Anthocerotaceae. The genus is global in its distribution. Its name means 'flower horn', and refers to the characteristic horn-shaped sporophytes, that all hornworts produce. The dark color of the spores is the easiest way to distinguish Anthoceros.

Multiple choice botany pictorial feature of plant kingdom classification of bryophytes types of bryophytes bryophyta

In Bryophyta, simplest sporophyte occur in

  1. Riccia

  2. Marchantia

  3. Funaria

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

Riccia belongs to the class Liver worts. They have dorsiventrally flattened lobed plant body with unicellular rhizoids. The mature sporophyte of Riccia is a globular capsule, embedded within the gametophytic plant and is without foot and seta. The sporophyte contains the mature haploid spores. The spores are liberated by the decay of venter wall and surrounding gametophytic tissue.

Multiple choice botany pictorial feature of plant kingdom classification of bryophytes types of bryophytes bryophyta

In which of the following bryophytes, fragmentation of older thallus, the means of vegetative reproduction?

  1. Riccia

  2. Marchantia

  3. Anthoceros

  4. Both B and C
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

Marchantia forms small green disc-shaped biconvex structures, gammae, inside little and shallow gemmae cups. Gemmae are the mode of vegetative reproduction and form thalli on the suitable soil. Means of vegetative reproduction in Riccia include fragmentation, adventitious branches, persistent apices and tuber formation; it does not form gemmae. Sphagnum reproduces vegetatively by formation of innovations. Anthoceros reproduce vegetatively by progressive growth and death of thallus, tubers, persistent apices and gemmae in few species. Thus, the correct answer is option D.

Multiple choice botany pictorial feature of plant kingdom classification of bryophytes types of bryophytes bryophyta

Sphagnum is also called peat moss because?

  1. It grows in acidic marshes(bog) and helps in peat formation

  2. It is found in peat

  3. It decays to form peat

  4. It gets fossilized quickly
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation
  • It also holds onto nutrients so that they aren't rinsed out of the soil when you water the plant. 
  • Peat moss alone does not make a good potting medium. 
  • Sphagnum is sometimes called peat moss because much of the dead material in a peat bog comes from sphagnum moss that grew on top of the bog and induces the formation of peat.
  • So. Option A is correct.

Multiple choice botany pictorial feature of plant kingdom classification of bryophytes types of bryophytes bryophyta

Bryophyta includes

  1. Mosses

  2. Club mosses

  3. Spike mosses

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

Bryophytes comprises of three classes- Hepaticae (Liver worts), Anthocerotae (Horn worts) and Musci (Mosses). Mosses have erect radially symmetrical leafy plant body produced from a filamentous or thalloid juvenile stage called as protonema. The sporophyte contains large amount of green tissue and is partially dependent upon the gametophyte. e.g., Funaria (cord moss), Sphagnum (Bog or Peat moss), Polytrichum etc.