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NEET • BIOLOGY • PLANT KINGDOM

Plant kingdom practice · Mixed difficulty

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271 Medium

271 of 401

Remembering +4 | -1

Double fertilisation is characteristic feature of

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Correct option: B

Angiosperms

Option B (Angiosperms) is correct because double fertilization is a defining characteristic of angiosperms, involving the fusion of one sperm with the egg and another with the polar nuclei.

272 Hard

272 of 401

Remembering +4 | -1

In which plant group gametophytic stage is main and sporophytic phase is subsidiary?

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Correct option: C

Bryophyta

Option C (Bryophyta) is correct because bryophytes have a dominant gametophytic stage and a subsidiary sporophytic stage.

273 Medium

273 of 401

Analyzing +4 | -1

Select odd one out w.r.t. ploidy of main plant body.

View answer and explanation

Correct option: D

Bryophyte

Option D (Bryophyte) is correct because bryophytes have a dominant gametophyte (haploid) plant body, while pteridophytes, gymnosperms, and angiosperms have a dominant sporophyte (diploid) plant body.

274 Hard

274 of 401

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

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Correct option: B

Diplontic

Option B (Diplontic) is correct because seed-bearing plants have a dominant diploid sporophyte and a reduced haploid gametophyte.

275 Medium

275 of 401

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First vascular plant is

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Correct option: C

Pteridophyta

Option C (Pteridophyta) is correct because pteridophytes are the first plants to possess vascular tissues (xylem and phloem).

276 Hard

276 of 401

Remembering +4 | -1

Haploid brown, hairlike, delicate unicellular outgrowths are

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Correct option: D

Rhizoids of fern plants

Option D (Rhizoids of fern plants) is correct because rhizoids are haploid, brown, hair-like, delicate unicellular outgrowths found in the gametophyte stage of fern plants.

277 Medium

277 of 401

Remembering +4 | -1

Identify the alga, which exhibits diplontic life cycle.

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Correct option: C

Fucus

Option C (Fucus) is correct because Fucus, a brown alga, exhibits a diplontic life cycle where the diploid sporophyte is the dominant phase and meiosis occurs during gamete formation.

278 Hard

278 of 401

Remembering +4 | -1

Majority of algae show external fertilization, except

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Correct option: C

Spirogyra

Option C (Spirogyra) is correct because Spirogyra exhibits internal fertilization through conjugation, unlike the other algae listed which typically have external fertilization.

279 Easy

279 of 401

Remembering +4 | -1

Buxbaumia aphylla is a classical example of

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Correct option: B

Saprophytic bryophyte

Option B (Saprophytic bryophyte) is correct because Buxbaumia aphylla lacks chlorophyll and obtains nutrients from decaying organic matter.

280 Easy

280 of 401

Understanding +4 | -1

Pteridophytes differ from bryophytes in possessing

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Correct option: B

True vascular system

Option B (True vascular system) is correct because pteridophytes possess a true vascular system (xylem and phloem) for water and nutrient transport, which bryophytes lack.

281 Hard

281 of 401

Remembering +4 | -1

In gymnosperm, the multicellular female gametophyte is retained with in

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Correct option: B

Megasporangium

Option B (Megasporangium) is correct because in gymnosperms, the multicellular female gametophyte is retained within the megasporangium.

282 Hard

282 of 401

Remembering +4 | -1

Chloroplasts, with pyrenoid like structures are found in the leaves of

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Correct option: A

Funaria

Option A (Funaria) is correct because Funaria, a moss, has chloroplasts with pyrenoid-like structures in its leaves, which are involved in carbon fixation.

283 Medium

283 of 401

Analyzing +4 | -1

Select the mismatch among the given options.

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Correct option: C

Sargassum - Chl b

Option C (Sargassum - Chl b) is correct because Sargassum belongs to Phaeophyceae (brown algae) and contains chlorophyll a and c, along with fucoxanthin, but not chlorophyll b.

284 Hard

284 of 401

Understanding +4 | -1

Alternation of generations is not shown by

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Correct option: D

1 and 2

Option D (1 and 2) is correct because Spirogyra (haplontic) and Fucus (diplontic) do not clearly show alternation of generations in the same way as haplo-diplontic plants.

285 Easy

285 of 401

Understanding +4 | -1

Identify the incorrect combination

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Correct option: D

Hepaticopsida – Funaria

The correct answer is D (Hepaticopsida – Funaria) because Funaria is a moss and belongs to the class Bryopsida, not Hepaticopsida (liverworts).

Explore Other Chapters in BIOLOGY

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ANIMAL KINGDOM 756 MCQs ANATOMY OF FLOWERING PLANTS 404 MCQs MOLECULAR BASIS OF INHERITANCE 404 MCQs CHEMICAL COORDINATION AND INTEGRATION 387 MCQs PRINCIPLE OF INHERITANCE AND VARIATION 374 MCQs EVOLUTION 362 MCQs

286 Easy

286 of 401

Understanding +4 | -1

Assertion: Most algae show haplontic type of life
cycle
Reason: They show free living sporophyte

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Correct option: C

If the assertion is true but the reason is false

Option C is correct because most algae do exhibit a haplontic life cycle, but they do not show a free-living sporophyte; the sporophyte is typically dependent or reduced.

287 Hard

287 of 401

Understanding +4 | -1

[A]: Pteridophytes and Gymnosperms are included in Archegoniatae.

[R]: They have archegonia as female reproductive organ.

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Correct option: A

Both A and R are true and R is the correct explanation of A

Option A (Both A and R are true and R is the correct explanation of A) is correct because both pteridophytes and gymnosperms possess archegonia as their female reproductive organs, placing them in the Archegoniatae.

288 Medium

288 of 401

Remembering +4 | -1

The alga used in space research is

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Correct option: C

Chlorella

Option C (Chlorella) is correct because Chlorella is a single-celled green alga known for its high photosynthetic efficiency and nutritional value, making it suitable for space research.

289 Hard

289 of 401

Remembering +4 | -1

The most common type of spores produced in algae are motile, they are

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Correct option: C

Zoospores

Option C (Zoospores) is correct because zoospores are motile spores produced by algae, equipped with flagella for movement.

290 Easy

290 of 401

Understanding +4 | -1

Assertion: Rhodophytes of shallow water body do not
appear reddish.
Reason: Rhodophytes of shallow water body have
lesser synthesis of phycoerythrin.

View answer and explanation

Correct option: A

If both the assertion and the reason are true and the
reason is a correct explanation of the
assertion

Option A is correct because the assertion and reason are both true, and the reason correctly explains why rhodophytes in shallow water may not appear reddish: they synthesize less phycoerythrin.

291 Hard

291 of 401

Understanding +4 | -1

Which one of the following pairs of plants are not seed producers?

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Correct option: A

Fern and Funaria

Option A (Fern and Funaria) is correct because both ferns and Funaria (a moss) reproduce via spores and do not produce seeds.

292 Medium

292 of 401

Understanding +4 | -1

Double fertilisation involves

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Correct option: A

Syngamy and triple fusion

Option A (Syngamy and triple fusion) is correct because double fertilization involves both the fusion of a male gamete with the egg (syngamy) and the fusion of another male gamete with the polar nuclei (triple fusion).

293 Easy

293 of 401

Remembering +4 | -1

Peat Moss is

View answer and explanation

Correct option: B

Sphagnum

Option B is correct because Sphagnum is commonly known as peat moss, valued for its water retention and use in horticulture.

294 Medium

294 of 401

Understanding +4 | -1

Read carefully the following statements about angiospermic sexual fertilisation
I. Pollen tube carries the male gamete towards archegonia and discharge contents in the mouth of archegonium
II. Male gamete fuses with egg to give rise zygote
III. Zygote develops into embryo and embryo into seeds
IV. Seeds are naked
Which of the statement given above are correct?

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Correct option: D

I, II, III and IV

Option A (I and II) is correct because statements I and II accurately describe the process of angiospermic fertilization, while statements III and IV are incorrect.

295 Hard

295 of 401

Understanding +4 | -1

Assertion: Spirogyra shows haplontic life cycle.
Reason: Zygotic meiosis occurs in Spirogyra.

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Correct option: A

If both assertion and reason are correct and the reason is a correct explanation of the assertion.

Option A is correct because Spirogyra does exhibit a haplontic life cycle, and this is due to the occurrence of zygotic meiosis, where the zygote is the only diploid cell and undergoes meiosis to produce haploid cells.

296 Medium

296 of 401

Remembering +4 | -1

A prokaryotic autotrophic nitrogen fixing symbiont is found in

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Correct option: A

Cycas

Option A is correct because Cycas has a symbiotic association with nitrogen-fixing cyanobacteria (prokaryotic, autotrophic) in its coralloid roots.

297 Hard

297 of 401

Understanding +4 | -1

Assertion: Selaginella and Salvinia are homosporous.
Reason: In Selaginella and Salvinia, similar kind of spores are produced.

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Correct option: D

If both the assertion and reason are incorrect.

Option D (If both the assertion and reason are incorrect) is correct because Selaginella and Salvinia are heterosporous, not homosporous, and the reason is based on the incorrect assertion.

298 Easy

298 of 401

Remembering +4 | -1

The giant red wood tree belongs to

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Correct option: C

Gymnosperms

Option C (Gymnosperms) is correct because the giant redwood tree (Sequoia sempervirens) is a conifer, which is a type of gymnosperm.

299 Easy

299 of 401

Remembering +4 | -1

Rhizoids are absent in

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Correct option: A

Pteridophytes

Option A (Pteridophytes) is correct because mature pteridophytes have roots instead of rhizoids.

300 Hard

300 of 401

Understanding +4 | -1

Consider the following statements regarding reproduction in class-Chloropyceae.
I. Asexual reproduction is mainly by flagellated zoospores produced in zoosporangia.
II. The sexual reproduction shows considerable variation in the type and formation of sex cells and it may be isogamous, anisogamous and oogamous.
Which of the statements given above are correct?

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Correct option: C

I and II

Option C is correct because both statements accurately describe reproduction in Chlorophyceae: asexual reproduction via flagellated zoospores and sexual reproduction with isogamous, anisogamous, or oogamous methods.

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Review PLANT KINGDOM in your textbook or class notes, then use this set to check your understanding.

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Plant kingdom practice · Mixed difficulty

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