Tag: pictorial feature of plant kingdom

Questions Related to pictorial feature of plant kingdom

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

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

  1. Eastern Himalayas

  2. Western Himalayas

  3. Western Ghats

  4. Eastern Ghats

  5. Sundarbans

Show answer
Correct Option: B
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'.

Sporogenous tissue is of amphithecial origin in

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

  1. Riccia

  2. Anthoceros

  3. Marchantia

  4. Funaria

Show answer
Correct Option: B

In moss sporophyte, which of the following is absent?

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

  1. Foot

  2. Seta

  3. Columella

  4. Elaters

Show answer
Correct Option: D
Explanation:

Elaters are structures present in plants. They are generally present to facilitate spore dispersal (liverworts) but are absent in mosses and spore dispersal is controlled by the peristome.

A dioecious gametophyte is seen in the case of______________.

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

  1. Funaria

  2. Riccia

  3. Marchantia

  4. Anthoceros

Show answer
Correct Option: C
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. 

Which of the following is a hornwort?

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

  1. Funaria

  2. Sphagnum

  3. Anthoceros

  4. Marchantia

Show answer
Correct Option: C
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.

In Bryophyta, simplest sporophyte occur in

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

  1. Riccia

  2. Marchantia

  3. Funaria

  4. Anthoceros

Show answer
Correct Option: A
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.

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

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

  1. Riccia

  2. Marchantia

  3. Anthoceros

  4. Both B and C

Show answer
Correct Option: A
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.

Which one of the following organism is a bryophyte ? 

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

  1. Liverwort

  2. Volvox

  3. Chlamydomonas

  4. Fern

Show answer
Correct Option: A

Sphagnum is also called peat moss because?

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

  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

Show answer
Correct Option: A
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.

Bryophyta includes

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

  1. Mosses

  2. Club mosses

  3. Spike mosses

  4. All of the above

Show answer
Correct Option: A
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.