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NEET • BIOLOGY • PLANT KINGDOM

Plant kingdom practice · Mixed difficulty

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Showing 181-210 of 401 questions

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181 Medium

181 of 401

Understanding +4 | -1

Assertion: Double fertilization is unique to angiosperms

Reason: Triple fusion is unique character of angiosperms

View answer and explanation

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 double fertilization is indeed unique to angiosperms, and triple fusion, which is part of double fertilization, is the reason why.

182 Easy

182 of 401

Remembering +4 | -1

Gymnosperms exhibit

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Correct option: A

Naked Ovules

Option A (Naked Ovules) is correct because a defining characteristic of gymnosperms is that their ovules are not enclosed within an ovary wall (naked).

183 Hard

183 of 401

Analyzing +4 | -1

Select the odd one w.r.t gymnosperms.

View answer and explanation

Correct option: C

Embryo sac has 3 celled egg apparatus

Option C (Embryo sac has 3 celled egg apparatus) is correct. Gymnosperms have a female gametophyte (embryo sac) with an archegonium, which contains the egg. The egg apparatus is not 3-celled in gymnosperms.

184 Medium

184 of 401

Remembering +4 | -1

Antherozoids of Dryopteris are

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Correct option: A

Multiciliated and coiled

Option A (Multiciliated and coiled) is correct because the antherozoids (sperm) of Dryopteris (a fern) are characterized by having multiple cilia and a coiled shape.

185 Medium

185 of 401

Understanding +4 | -1

Megaspore mother cell divides …A… to give rise …B… megaspores Identify the A and B and choose correct option

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Correct option: B

A-Meiotically; B-four

Option B (A-Meiotically; B-four) is correct because megaspore mother cell undergoes meiosis to produce four megaspores.

186 Medium

186 of 401

Remembering +4 | -1

Haplo-diplontic life cycle is followed by

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Correct option: A

Bryophytes and pteridophytes

Option A (Bryophytes and pteridophytes) is correct because both bryophytes and pteridophytes exhibit a haplo-diplontic life cycle, where both haploid and diploid phases are multicellular and relatively prominent.

187 Easy

187 of 401

Understanding +4 | -1

Coralloid Roots of Cycas is distinguished from angiosperm roots by

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Correct option: D

Presence of Algal Zone

Option D (Presence of Algal Zone) is correct because coralloid roots of Cycas have a symbiotic association with cyanobacteria, forming an algal zone, which distinguishes them from angiosperm roots.

188 Medium

188 of 401

Understanding +4 | -1

Which is wrong in respect to bryophytes?

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Correct option: D

Presence of autotrophic independent sporophyte

Option D (Presence of autotrophic independent sporophyte) is correct because the sporophyte in bryophytes is dependent on the gametophyte for nutrition, and is not autotrophic or independent.

189 Hard

189 of 401

Remembering +4 | -1

Which of the following plant materials, is an efficient water imbibant?

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Correct option: C

Agar

Option C (Agar) is correct because agar has a high water-holding capacity and is thus an efficient water imbibant.

190 Medium

190 of 401

Remembering +4 | -1

Transfusion tissue is present in the leaves of

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Correct option: D

Both (b) and (c )

Option D (Both (b) and (c )) is correct because transfusion tissue is present in the leaves of both Cycas and Pinus, which are gymnosperms.

191 Medium

191 of 401

Understanding +4 | -1

In which of the following, all listed genera belong to the same class of algae?

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Correct option: B

Volvox,Spirogyra,Chlamydomonas

Option B (Volvox, Spirogyra, Chlamydomonas) is correct because all three genera belong to the class Chlorophyceae (green algae).

192 Easy

192 of 401

Remembering +4 | -1

Isogametes are not produced by

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Correct option: B

Volvox

Option B is correct. Volvox produces oogamous type of sexual reproduction where motile sperm fuses with large non-motile egg.

193 Easy

193 of 401

Understanding +4 | -1

Bryophytes are amphibians of the plant kingdom because?

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Correct option: A

They require a layer of water for carrying out sexual reproduction

Option A (They require a layer of water for carrying out sexual reproduction) is correct because bryophytes need water for the sperm to swim to the archegonium for fertilization.

194 Medium

194 of 401

Understanding +4 | -1

Select the incorrect match

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Correct option: C

Selaginella- Homosporous

Option C (Selaginella- Homosporous) is the incorrect match because Selaginella is a heterosporous pteridophyte, producing two types of spores.

195 Medium

195 of 401

Understanding +4 | -1

Zygotic meiosis is seen in the plants exhibiting the _______

View answer and explanation

Correct option: A

Haplontic life cycle

Option A is correct because zygotic meiosis, where the zygote undergoes meiosis immediately after formation, is characteristic of organisms with a haplontic life cycle.

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

196 Easy

196 of 401

Remembering +4 | -1

Which of the following is the amphibians of the plant kingdom?

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Correct option: D

Byrophytes

Option D (Byrophytes) is correct because bryophytes require water for fertilization, similar to amphibians.

197 Easy

197 of 401

Understanding +4 | -1

Which statement is true

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Correct option: B

Spores and gametes are invariably haploids

Option B (Spores and gametes are invariably haploids) is correct because both spores and gametes are always haploid (n) as they are involved in sexual reproduction and life cycle continuation.

198 Hard

198 of 401

Understanding +4 | -1

Which of the following statements are correct for Cycas
I. The stem is unbranched
II. The pinnately compound leaves persist for few years
III. Having symbiotic association with

{N_2}

fixing cynobacteria.
IV. Cycas plants are monoceious with mycorrhizal association.

View answer and explanation

Correct option: D

I, II & III

Option D (I, II & III) is correct. Cycas has an unbranched stem, pinnately compound leaves that persist for a few years, and a symbiotic association with nitrogen-fixing cyanobacteria.

199 Easy

199 of 401

Understanding +4 | -1

A fern differs from a moss in processing?

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Correct option: C

Independent sporophyte

Option C (Independent sporophyte) is correct because ferns have an independent sporophyte generation, whereas in mosses, the sporophyte is dependent on the gametophyte for nutrition.

200 Easy

200 of 401

Understanding +4 | -1

In which of the following gametophyte is not independent free living

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Correct option: C

Pinus

Option C (Pinus) is correct because in Pinus (a gymnosperm), the gametophyte is dependent on the sporophyte.

201 Easy

201 of 401

Understanding +4 | -1

Fusion Between two dissimilar flagellated or Non flagellated gametes is

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Correct option: C

Anisogamy

Option C (Anisogamy) is correct because anisogamy is defined as the fusion between two dissimilar gametes, which can be flagellated or non-flagellated.

202 Medium

202 of 401

Understanding +4 | -1

Flagellated male gametes are present in all the three of which one of the following sets?

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Correct option: D

Riccia,Dryopteris and Cycas

Option D (Riccia, Dryopteris and Cycas) is correct because all three genera—Riccia (a bryophyte), Dryopteris (a pteridophyte), and Cycas (a gymnosperm)—have flagellated male gametes.

203 Hard

203 of 401

Understanding +4 | -1

Given below are two statements : One labelled as Assertion A and the other labelled as Reason R :

Assertion A : In gymnosperms the pollen grains are released from the microsporangium and carried by air
currents.

Reason R : Air currents carry the pollen grains to the mouth of the archegonia where the male gametes are
discharged and pollen tube is not formed.

In the light of the above statements, choose the correct answer from the options given below :

View answer and explanation

Correct option: A

A is true but R is false

Option A (A is true but R is false) is correct. Assertion A is true; gymnosperms release pollen grains carried by air. Reason R is false; gymnosperms do form pollen tubes.

204 Hard

204 of 401

Understanding +4 | -1

[A]: Either megasporophylls or microsporophylls are found in Gymnosperms.

[R]: Both mega and microsporophylls are common in Gymnosperms. Megasporophylls are smaller than microsporophylls.

View answer and explanation

Correct option: D

Both A and R are false

Option D (Both A and R are false) is correct because gymnosperms have both megasporophylls and microsporophylls, and megasporophylls are generally larger than microsporophylls.

205 Medium

205 of 401

Remembering +4 | -1

Which of the following is known as ‘bog moss’?

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Correct option: C

Sphagnum

Option C (Sphagnum) is correct because Sphagnum moss is commonly known as 'bog moss' due to its prevalence in bog environments.

206 Easy

206 of 401

Understanding +4 | -1

Read the given assertion and reason type select the correct option Explanation (A) :- Sphagnum can be used as fuel. Explanation (R) :- Sphagnum can absorb water

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Correct option: C

Both Explanations are correct

Option C (Both Explanations are correct) is correct because Sphagnum can be used as fuel due to its carbon content and can absorb water due to its hyaline cells.

207 Easy

207 of 401

Understanding +4 | -1

Difference between algae and bryophytes is

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Correct option: B

Sterile jacket

The correct answer is B (Sterile jacket) because bryophytes have a sterile jacket around their reproductive organs, whereas algae lack this protective layer.

208 Medium

208 of 401

Understanding +4 | -1

Algae is not?

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Correct option: C

Mainly fresh water

Option C is correct because while many algae are found in freshwater, they are also found in marine environments, so 'mainly freshwater' is not a universally true statement about algae.

209 Hard

209 of 401

Remembering +4 | -1

In Pinus, the development of endosperm is

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Correct option: A

A pre-fertilization event

Option A (A pre-fertilization event) is correct because in Pinus, the endosperm develops before fertilization, making it a pre-fertilization event.

210 Medium

210 of 401

Remembering +4 | -1

Iodine is obtained from

View answer and explanation

Correct option: A

Laminaria

Option A is correct because Laminaria (a brown alga) is a significant source of iodine.

Revision notes and key takeaways

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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