Tag: pictorial feature of plant kingdom

Quizzes (25) Questions (439)

Questions Related to pictorial feature of plant kingdom

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.

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

Match the column.

A. Aquatic bryophyte 1. Riccia
B. Peat moss 2. Early gametophytic part
C. Calyptra 3. Sphagnum
D. Protonema 4. Sporophytic body with its gametophytic haploid part

  1. A-3, B-1, C-2, D-4

  2. A-3, B-1, C-4, D-2

  3. A-1, B-3, C-4, D-2

  4. A-3, B-4, C-1, D-2
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

The only aquatic bryophyte is Riccia fluitans, or crystalwort, which  is a floating bladderwort. Sphagnum is also called as peat moss or bog moss. The sporophyte is completely surrounded by a tough protective covering called the calyptra. The new adult gametophytes grow from a tiny bud that develops on the protonema.

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

What is cause of 'forest' decline?

  1. Acid loving moss

  2. Deforestation

  3. Pollution

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

Acid-loving mosses, such as Sphagnum, can create highly acidic and waterlogged conditions in the soil. This prevents proper aeration and nutrient uptake by tree roots, eventually leading to the decline and death of surrounding forest trees.

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

Mosses may also kills 'mycorrihizal fungi' that help trees to absorb

  1. Air

  2. Nutrients

  3. Water

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

Mycorrhizal fungi form symbiotic associations with tree roots, significantly enhancing the absorption of essential nutrients like phosphorus and nitrogen from the soil. When mosses suppress or kill these fungi, trees suffer from nutrient deficiencies.