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NEET • BIOLOGY • PLANT KINGDOM
Plant kingdom practice · Easy
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1
Easy
1 of 115
Understanding
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Female gametophyte in pinus is
View answer and explanation
Correct option: D
Both 2 and 3
Option D (Both 2 and 3) is correct because the female gametophyte in Pinus is multicellular and bears two or more archegonia.
2
Easy
2 of 115
Remembering
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Haplontic life cycle is followed by
View answer and explanation
Correct option: A
Algae
Option A (Algae) is correct because many algae exhibit a haplontic life cycle, where the dominant phase is haploid, and the diploid phase is only represented by the zygote.
3
Easy
3 of 115
Remembering
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Carrageen is mainly produced by members of
View answer and explanation
Correct option: A
Red algae
Option A (Red algae) is correct because carrageenan is a polysaccharide extracted from red algae and used as a thickening agent.
4
Easy
4 of 115
Understanding
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Gymnosperms are naked seeded plants because
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Correct option: A
There is no fruit
Option D (There is no ovary and fruit) is the correct answer because gymnosperms lack an ovary, which is essential for fruit development. Therefore, they have naked seeds.
5
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In Mosses Meiosis Occurs
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Correct option: A
During spare formation
The correct answer is A (During spare formation) because meiosis in mosses occurs during the formation of spores within the sporangium.
6
Easy
6 of 115
Understanding
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Consider the following statements about sexual reproduction in brown algae?
I. Sexual reproduction may be oogamous isogamous or anisogamous
II. Union of gametes take place in water or within the oogonium
III. The gametes are pear-shaped and bear two laterally attached flagella
Which of the statements given above are correct?
I. Sexual reproduction may be oogamous isogamous or anisogamous
II. Union of gametes take place in water or within the oogonium
III. The gametes are pear-shaped and bear two laterally attached flagella
Which of the statements given above are correct?
View answer and explanation
Correct option: D
I, II and III
Option D (I, II and III) is correct because all three statements accurately describe sexual reproduction in brown algae.
7
Easy
7 of 115
Remembering
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Laminaria is a
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Correct option: B
Brown algae
Option B (Brown algae) is correct because Laminaria is a genus of brown algae, commonly known as kelp.
8
Easy
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Remembering
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Stamen consists of
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Correct option: A
Filament and anther
Option A (Filament and anther) is correct. A stamen consists of a filament and an anther.
9
Easy
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Remembering
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The members of algae reproduce by
View answer and explanation
Correct option: D
All of these
Option D (All of these) is correct because algae reproduce through vegetative, asexual, and sexual methods.
10
Easy
10 of 115
Understanding
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Algae are
View answer and explanation
Correct option: D
Both 1 and 2 are correct
Option D (Both 1 and 2 are correct) is correct because algae are chlorophyll-bearing, simple, thalloid autotrophic organisms and are mostly aquatic.
11
Easy
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Remembering
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In pteridophytes spore germinate to give rise to
View answer and explanation
Correct option: A
Thalloid gametophytes called prothallus
Option A (Thalloid gametophytes called prothallus) is correct because spores in pteridophytes germinate to form a thalloid, independent gametophyte called a prothallus.
12
Easy
12 of 115
Understanding
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Choose the correct statements.
View answer and explanation
Correct option: A
The sporophyte in mosses in more elaborate than in liver worts.
Option A (The sporophyte in mosses in more elaborate than in liver worts) is correct because mosses have a more developed sporophyte compared to liverworts.
13
Easy
13 of 115
Remembering
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‘Chilgoza’ a gymnospermic seed that is eaten as dry fruit is produced by
View answer and explanation
Correct option: B
Pinus geradiana
Option B is correct because 'Chilgoza' is produced by Pinus gerardiana, a gymnosperm known for its edible seeds.
14
Easy
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Remembering
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The commercial products which is used grow microbes and in preparations of ice-creams and jellies are obtained from
View answer and explanation
Correct option: C
Gracilaria
Option C (Gracilaria) is correct because agar, used to grow microbes and in ice-creams and jellies, is obtained from Gracilaria (a red algae).
15
Easy
15 of 115
Remembering
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Male and female sex organs are present on separate plant bodies in
View answer and explanation
Correct option: D
Marchantia
Option D (Marchantia) is correct because Marchantia is a dioecious bryophyte, meaning male and female sex organs are on separate plants.
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16
Easy
16 of 115
Remembering
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Heterosporous Pteridophyte is
View answer and explanation
Correct option: A
Salvinia
Option A (Salvinia) is correct because it produces two types of spores (microspores and megaspores), leading to the development of male and female gametophytes, respectively.
17
Easy
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Understanding
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Fertilisation is the process of
View answer and explanation
Correct option: B
Fusion of one male gamete with the egg
Option B (Fusion of one male gamete with the egg) is correct because fertilization is defined as the fusion of male and female gametes.
18
Easy
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Understanding
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Zygote of Spirogyra produces four haploid nuclei in which
View answer and explanation
Correct option: A
One is functional
Option A (One is functional) is correct because in Spirogyra, after meiosis in the zygote, only one of the four haploid nuclei survives, and the other three degenerate.
19
Easy
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Understanding
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Mosses reproduce vegetatively by?
View answer and explanation
Correct option: D
2 and 3
The correct answer is D (2 and 3) because mosses reproduce vegetatively through fragmentation and the development of secondary protonema.
20
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Understanding
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Read the given assertion and reason type select correct option Explanation (A) :- Bryophytes and tracheophytes have an embryostage in their life cycle. Explanation (R) :- Embryophytes are terrestrial plants
View answer and explanation
Correct option: C
Both Explanations are correct
Option C (Both Explanations are correct) is correct because both bryophytes and tracheophytes have an embryo stage in their life cycle, and embryophytes are indeed terrestrial plants.
21
Easy
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Remembering
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Cycas leaflets are
View answer and explanation
Correct option: B
Sessile, straight, linear-lanceolate
Option B (Sessile, straight, linear-lanceolate) is correct because Cycas leaflets are sessile (without a stalk), straight, and have a linear-lanceolate shape.
22
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Understanding
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Cycas is classified as a gymnosperms due to its
View answer and explanation
Correct option: C
Naked ovule
Option C (Naked ovule) is correct because gymnosperms are characterized by having naked ovules, which are not enclosed within an ovary.
23
Easy
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Remembering
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Besides paddy fields cyanobacteria are also found inside vegetative part of
View answer and explanation
Correct option: A
Cycas
Option A (Cycas) is correct because cyanobacteria often have a symbiotic relationship with Cycas, residing within its coralloid roots.
24
Easy
24 of 115
Remembering
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Plant body is not filamentous in
View answer and explanation
Correct option: D
Volvox
Option D (Volvox) is correct because Volvox is a colonial alga, not a filamentous one, while Spirogyra, Ulothrix, and Ectocarpus are filamentous.
25
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Understanding
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Haplo-diplontic type of life cycle is present in all of these, except
View answer and explanation
Correct option: D
Ficus
Option D (Ficus) is correct because Ficus (a flowering plant) exhibits a diplontic life cycle, while the others are haplo-diplontic.
26
Easy
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Remembering
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Protonema is formed in
View answer and explanation
Correct option: A
Moss
Option A (Moss) is correct because protonema is the first stage in the life cycle of mosses, developing from a spore.
27
Easy
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Understanding
+4 | -1
Assertion: In some species of Chlamydomonas, the
fusion of gamete is termed as anisogamous
Reason: Because gametes which undergo fusion in
these species are of dissimilar in size
fusion of gamete is termed as anisogamous
Reason: Because gametes which undergo fusion in
these species are of dissimilar in size
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
reason is a correct explanation of the
assertion
Option A (If both the assertion and the reason are true and the reason is a correct explanation of the assertion) is correct because anisogamy is defined by the fusion of gametes that are dissimilar in size, and Chlamydomonas exhibits this in some species.
28
Easy
28 of 115
Analyzing
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Select the odd one w.r.t. green algae
View answer and explanation
Correct option: D
Porphyra
Option D (Porphyra) is the odd one out because it is a red alga, while Volvox, Chlamydomonas, and Chara are all green algae.
29
Easy
29 of 115
Analyzing
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Assertion (A): Algae are divided into three main classes, based on only cell wall composition.
Reason (R): Among members of algae composition of cell wall is extremely variable.
Reason (R): Among members of algae composition of cell wall is extremely variable.
View answer and explanation
Correct option: D
Both (A) and (R) are false
Option D is correct because algae are classified based on multiple factors, not just cell wall composition, and the cell wall composition isn't extremely variable across all algae.
30
Easy
30 of 115
Remembering
+4 | -1
A gymnosperm with unbranched stem is
View answer and explanation
Correct option: C
Cycas
Option C (Cycas) is correct because Cycas is a gymnosperm known for having an unbranched stem.
Revision notes and key takeaways
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Key Takeaways
- ✓ This set contains 115 single-correct-answer MCQs on PLANT KINGDOM.
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Showing 1-30 of 115 questions