Tag: bryophyta

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Questions Related to bryophyta

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

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

List-I(Plants) List-II(Plant groups)
a. Ophiologlossum $1$. Musci
b. Notothylas $2$. Filicineae
c. Sphagnum $3$. Anthocerotae
d. Rhynia $4$. Psilophytineae
$5$. Hepaticeae
  1. A-$1$, B-$2$, C-$5$, D-$3$
  2. A-$2$, B-$3$, C-$1$, D-$4$
  3. A-$2$, B-$3$, C-$5$, D-$4$
  4. A-$4$, B-$2$, C-$1$, D-$3$
Reveal answer Fill a bubble to check yourself
A Correct answer
Multiple choice botany pictorial feature of plant kingdom classification of bryophytes types of bryophytes bryophyta

Match List-I (Orders of Bryophyte) with List-II(characters present) are select the correct answer.

List-I List-II
a. Marchantiales $1$. Neck of arch gonium composed of five vertical rows of cells
b. Leafy Jungerm anniales $2$. Absence of elaters in capsule
c. Anthocerotales $3$. Archesporium arises from amphithecia
d. Funerals $4$. Presence of scales on thralls
  1. A-$4$, B-$1$, C-$3$, D-$2$
  2. A-$1$, B-$4$, C-$3$, D-$2$
  3. A-$4$, B-$1$, C-$2$, D-$3$
  4. A-$1$, B-$4$, C-$2$, D-$3$
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

Marchantiales are characterized by the presence of scales on the thallus. Leafy Jungermanniales have archegonial necks composed of five vertical rows of cells. In Anthocerotales, the archesporium arises from the amphithecium, and in Funariales, elaters are absent in the capsule.

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

In which one of the following bryophytes does archesporium arise from endothelium?

  1. Marchantia

  2. Funaria

  3. Sphagnum

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

In Marchantia, the entire endothecium of the developing sporophyte differentiates into the archesporium (sporogenous tissue), which later gives rise to spore mother cells and elaters. In contrast, in Anthoceros and Sphagnum, the archesporium is derived from the amphithecium.

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

Choose the correct answers from the alternatives given.
In which one of the following plants sporophyte is completely dependent on gametophyte?

  1. Riccia

  2. Funaria

  3. Angiosperms

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

Plant body of bryophyte is differentiated than that of algae and it is thallus like and prostate and effect. The main plant body is haploid and is known as gametophyte. There is a multicellular body which is known as sporophyte which is not free living and is attached to the gametophyte and derives nourishment from it.

So, the correct answer is Riccia which is a bryophyte.

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

Which of the following is not a moss?

  1. Ploytrichum

  2. Sphagnum

  3. Funaria

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

Mosses are small flowerless plants that grow in shady regions having adequate moisture. These are spore producing plants. Common examples of mosses include Sphagnum, Funaria and Polytrichum. Sphagnum is commonly called as peat moss. Funaira is a water moss that grows in shady, damp places. Polytrichum is commonly called as haircap moss. Riccia is a genus of liverworts

Thus, the correct answer is option D.

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

Select the option that includes liverworts only.

  1. Riccia, Marchantia

  2. Riccia, Funaria

  3. Polytrichum, Marchantia

  4. Both (a) and (c)
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

Both Riccia and Marchantia belong to Class Hepaticosida/Hepaticae that includes 3 orders, the two genera belong to Order Marchantiales, that has specialized vertical stalks called the archegoniophores and serile cells called elaters in the sporangium. The plant body shows dichotomous branching.

So, the correct answer is 'Riccia, Marchantia'

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

The moss which forms dense extensive mats on the soil prevents __________________.

  1. uprooting of trees

  2. soil erosion

  3. falling of leaves

  4. evaporation of water from the soil
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

Mosses form a protective covering over the crumbling soil of cliffs and prevent the rushing rainwater from cutting deeply into the soil. These grow in dense mats so firmly intertwined around the soil particles that there can be little erosion, even on a steep hillside.

So the correct option is B.

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

Read the given statements and select the correct option.
Statement 1 : Each sperm of moss has two flagella.
Statement 2 : Water is essential for fertilisation in mosses.

  1. Both statements 1 and 2 are correct.

  2. Statement 1 is correct but statement 2 is incorrect.

  3. Statement 1 is incorrect but statement 2 is correct.

  4. Both statements 1 and 2 are incorrect.
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

Sperm of mosses are biflagellated, ie., it has two flagella that aid in propulsion. Since sperm must swim to the archegonium, fertilisation cannot occur without water.

So the correct option is A.