Plant Kingdom Test

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Plant Kingdom Test - 73

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Weekly Quiz Competition

Question 1
1 / -0

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.

A
Both statements 1 and 2 are correct.

B
Statement 1 is correct but statement 2 is incorrect.

C
Statement 1 is incorrect but statement 2 is correct.

D
Both statements 1 and 2 are incorrect.

Solution

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.
Question 2
1 / -0

Statement 1: The main plant body of bryophytes is sporophytic.

Statement 2: The main plant body of pteridophytes is gametophytic.

A
Both statements 1 and 2 are correct.

B
Statement 1 is correct but statement 2 is incorrect.

C
Statement 1 is incorrect but statement 2 is correct.

D
Both statements 1 and 2 are incorrect.

Solution

The main plant body in Bryophytes is the independent , photosynthetic gametophyte, the diploid body or the sporophyte is partially dependent on the sporophyte, that then give rise to haploid spores which on germination produce the gemetophyte (Riccia) or protonema (Funaria). The plants have a haplo-diplontic type of life cycle.
The main plant body in Pteridophytes is diploid, independent, photosynthetic differentiated into root,stem and leaves. It produces reproductive structures the Sori (Adiantum) or Strobilus (Equisetum) that give rise to haploid spores, the haploid spores produce heart shaped independent gametophyte the prothallus, containing the male and female reproductive structures. The plants have a diplo-haplontic type of life cycle.
So, the correct answer is 'Both statements 1 and 2 are incorrect.'
Question 3
1 / -0

The sporophyte is attached to the gametophyte in

A
Algae

B
Fungi

C
Bryophytes

D
Pteridophytes
Solution
- Bryophytes are known as amphibians of the plant kingdom.
- The main plant body is a haploid that produces gametes and is known as a gametophyte.
- After the fertilisation zygote is formed which produces a multicellular body called a sporophyte, which is not free-living but attached to the photosynthetic gametophyte and derives nourishment from it.
So, the correct answer is (C).
Question 4
1 / -0

Select the correct pattern of arrangement of reproductive structures for gymnosperms.

A
Spores $$\rightarrow$$ Sporophylls $$\rightarrow$$ Sporangia$$ \rightarrow$$ Strobili

B
Spores $$\rightarrow$$ Sporangia $$\rightarrow$$ Sporophylls $$ \rightarrow$$ Strobili

C
Sporangia $$\rightarrow$$ Sporophylls $$\rightarrow$$ Spores $$\rightarrow$$ Strobili

D
Spores $$\rightarrow$$ Sporangia $$\rightarrow$$ Strobili $$\rightarrow$$ Sporophylls

Solution

Gymnosperms are heterosporous, i.e., produce two different kinds of spores the male (microspores) and the female (megaspores). The spores are borne inside the sporangia. The two types of sporangia (microsporangia and megasporangia) are borne on special leaf- like structures called microsporophylls ($$=$$ stamens) and megasporophylls ($$=$$ carpels) respectively. The sporophylls are usually aggregated in the form of compact structures called cones or strobili. The cones are generally unisexual, i.e., the male cones are microsporangiate (pollen cones) and the female cones are megasporangiate (seed cones). So, the correct answer is 'Spores $$\rightarrow$$ Sporangia $$\rightarrow$$ Sporophylls $$ \rightarrow$$ Strobili'.
Question 5
1 / -0

The Sporophyte is the dominant phase in

A
Pteridophytes

B
Gymnosperms

C
Angiosperms

D
All of these

Solution

The plant body or the vegetative phase is diploid in pteridophytes, gymnosperms and angiosperms. The reproductive structures like the stobili in pteridophytes, ovules and microsporangium, anther are also diploid. Here, only the reproductive cells undergo meiosis or gametogenesis to give rise to male and female gametes that are haploid. These fuse to produce a diploid zygote. So, the gametophytic stage is restricted and of a very short duration as compared to the sporophytic stage. therefore, sporophyte is a dominant phase.
So, the correct answer is 'All of these'
Question 6
1 / -0

Match column I with column II and select the correct options from the codes given below.
Column I Column II
A. Psilopsida (i) Psilotum
B. Lycopsida (ii) Equisetum
C. Sphenopsida (iii) Selaginella
D. Pteropsida (iv) Dryopteris

A
A-(i), B-(ii), C-(iii), D-(iv)

B
A-(i), B-(iv), C-(iii), D-(ii)

C
A-(i), B-(iii), C-(ii), D-(iv)

D
A-(i), B-(iii), C-(iv), D-(ii)
Solution
Pteridophyta is divided into 4 classes:-
(A) Psilopsida - Psilotum
(B) Lycopsida - Selaginella
(C) Sphenopsida - Equisetum
(D) Pteropsida - Dryopteris
So, the correct answer is (c).
Question 7
1 / -0

In ________, a dominant and independent haploid gametophyte alternates with a short-lived, dependent sporophyte.

A
algae

B
bryophytes

C
pteridophytes

D
gymnosperms

Solution

In bryophytes, a dominant, independent, photosynthetic, thalloid or erect phase is represented by a haploid gametophyte and it alternates with the short-lived multicellular sporophyte which is totally or partially dependent on the gametophyte for its anchorage and nutrition.
So the correct option is B.
Question 8
1 / -0

Choose the incorrect match.

A
Amphibians of plant kingdom - Bryophytes

B
First terrestrial plants to possess vascular tissues - Gymnosperms

C
Aquatic plant - Algae

D
Seeds enclosed in fruits - Angiosperms
Solution
Correct option: B

Explanation:
- Pteridophytes, which dominated the forests during the carboniferous period, are the earliest terrestrial plants to have vascular tissue.
- They are also known as the vascular cryptogams (i.e., the plants possessing primitive vascular tissue and are non-seeded).
- The gymnosperms (naked seeds) on the other hand, have eustele which indicates that the evolution of stele started with Gymnosperms.
Hence, Option B - the first terrestrial plants to possess vascular tissues - Gymnosperms is the incorrect match, because Pteridophytes are the earliest known terrestrial plants.
Question 9
1 / -0

Which kind of life-cycle pattern is exhibited by seed-bearing plants?

A
Haplontic

B
Diplontic

C
Haplo-diplontic

D
All of these

Solution

In a diplontic life cycle, the dominant free-living phase is the diploid (2n). The sporophyte is photosynthetic. The gametophytic phase is represented by single to few-celled haploid gametophyte. All seed-bearing plants, i.e., gymnosperms and angiosperms exhibit this type of life cycle.
So the correct option is B.
Question 10
1 / -0

The given figure shows a / an

A
Adiantum plant

B
Dryopteris plant

C
Selaginella leaf

D
Psilotum leaf

Solution

In Dryopteris, sporophytic plant body is differentiated into roots,rhizomatous stem and leaves. It reproduces by means of spores. Prothallus is present which is heart-shaped,monoecious and protandrous.
So,the correct answer is " Dryopteris ".

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Column I	Column II
A. Psilopsida	(i) Psilotum
B. Lycopsida	(ii) Equisetum
C. Sphenopsida	(iii) Selaginella
D. Pteropsida	(iv) Dryopteris

Plant Kingdom Test - 73

Result

Plant Kingdom Test - 73

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Question 1

Both statements 1 and 2 are correct.

Statement 1 is correct but statement 2 is incorrect.

Statement 1 is incorrect but statement 2 is correct.

Both statements 1 and 2 are incorrect.

Solution

Question 2

Both statements 1 and 2 are correct.

Statement 1 is correct but statement 2 is incorrect.

Statement 1 is incorrect but statement 2 is correct.

Both statements 1 and 2 are incorrect.

Solution

Question 3

Algae

Fungi

Bryophytes

Pteridophytes

Solution

Question 4

Spores $$\rightarrow$$ Sporophylls $$\rightarrow$$ Sporangia$$ \rightarrow$$ Strobili

Spores $$\rightarrow$$ Sporangia $$\rightarrow$$ Sporophylls $$ \rightarrow$$ Strobili

Sporangia $$\rightarrow$$ Sporophylls $$\rightarrow$$ Spores $$\rightarrow$$ Strobili

Spores $$\rightarrow$$ Sporangia $$\rightarrow$$ Strobili $$\rightarrow$$ Sporophylls

Solution

Question 5

Pteridophytes

Gymnosperms

Angiosperms

All of these

Solution

Question 6

A-(i), B-(ii), C-(iii), D-(iv)

A-(i), B-(iv), C-(iii), D-(ii)

A-(i), B-(iii), C-(ii), D-(iv)

A-(i), B-(iii), C-(iv), D-(ii)

Solution

Question 7

algae

bryophytes

pteridophytes

gymnosperms

Solution

Question 8

Amphibians of plant kingdom - Bryophytes

First terrestrial plants to possess vascular tissues - Gymnosperms

Aquatic plant - Algae

Seeds enclosed in fruits - Angiosperms

Solution

Question 9

Haplontic

Diplontic

Haplo-diplontic

All of these

Solution

Question 10

Adiantum plant

Dryopteris plant

Selaginella leaf

Psilotum leaf

Solution

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