Tag: botany

Questions Related to botany

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

  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-$3$

Show answer
Correct Option: A

Which one of the following liverworts was discovered in India.

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

  1. Sewardiella

  2. Wiesnerella

  3. Gollaniella

  4. Riella

Show answer
Correct Option: A

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

  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-$3$

Show answer
Correct Option: A

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

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

  1. Marchantia

  2. Funaria

  3. Sphagnum

  4. Anthoceros

Show answer
Correct Option: A

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

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

  1. Riccia

  2. Funaria

  3. Angiosperms

  4. Gymnosperms

Show answer
Correct Option: A
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.

Which of the following is not a moss?

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

  1. Ploytrichum

  2. Sphagnum

  3. Funaria

  4. Riccia

Show answer
Correct Option: D
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.

Select the option that includes liverworts only.

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

  1. Riccia, Marchantia

  2. Riccia, Funaria

  3. Polytrichum, Marchantia

  4. Both (a) and (c)

Show answer
Correct Option: A
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'

In liverworts _________________.

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

  1. Growth and reproduction are mutually inclusive events

  2. Growth and reproduction are mutually exclusive events

  3. Asexual reproduction occurs by mitospores

  4. Both (1) and (3)

Show answer
Correct Option: A

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

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

  1. uprooting of trees

  2. soil erosion

  3. falling of leaves

  4. evaporation of water from the soil

Show answer
Correct Option: B
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.

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.

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

  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.

Show answer
Correct Option: A
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.