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NEET • BIOLOGY • PLANT KINGDOM

Plant kingdom practice · Mixed difficulty

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Showing 1-30 of 401 questions
1 Easy
1 of 401
Understanding +4 | -1
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 Medium
2 of 401
Remembering +4 | -1
In pteridophyte, the sporophytes consist of leaf-like appendages called
View answer and explanation
Correct option: B
Sporophylls
Option B (Sporophylls) is correct because sporophylls are specialized leaves in pteridophytes that bear sporangia, the structures that produce spores.
3 Medium
3 of 401
Remembering +4 | -1
Triple fusion in angiosperms is the fusion of second male gamete with
View answer and explanation
Correct option: A
Two polar nuclei (secondary nucleus)
Option A (Two polar nuclei (secondary nucleus)) is correct because triple fusion involves the fusion of a male gamete with the two polar nuclei in the central cell of the embryo sac, forming the endosperm.
4 Easy
4 of 401
Remembering +4 | -1
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.
5 Easy
5 of 401
Remembering +4 | -1
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.
6 Medium
6 of 401
Understanding +4 | -1
Gametophyte is always dependent on sporophyte in
View answer and explanation
Correct option: D
Seed plants
Option D (Seed plants) is correct because in seed plants, the gametophyte is reduced and completely dependent on the sporophyte.
7 Medium
7 of 401
Analyzing +4 | -1
Assertion (A) Production of two types of spores is a prerequisite of seed habit
Reason (R) In pteridophytes, Lycopodium is precursor of
seed habit.
View answer and explanation
Correct option: C
If A is true, but R is false.
Option C (If A is true, but R is false) is correct because the production of two types of spores is a prerequisite for seed habit, but Lycopodium is not a precursor of seed habit.
8 Hard
8 of 401
Understanding +4 | -1
Common characteristic between bryophytes and pteridophytes is
View answer and explanation
Correct option: C
Water for fertilization
Option C (Water for fertilization) is correct because both bryophytes and pteridophytes require water for the sperm to swim to the egg for fertilization.
9 Hard
9 of 401
Remembering +4 | -1
Mark the correct set of characteristics for Phaeophyceae.
View answer and explanation
Correct option: B
Chlorophyll a, c; mannitol, cellulose and algin
Option B is correct because Phaeophyceae (brown algae) have chlorophyll a and c, store food as mannitol, and have cell walls containing cellulose and algin.
10 Medium
10 of 401
Remembering +4 | -1
The members of brown algae (class-Phaeophyceae) have gelatinous coating outside the, cellulosic cell wall called
View answer and explanation
Correct option: A
Algin
Option A (Algin) is correct because brown algae have a gelatinous coating of algin outside their cellulosic cell wall.
11 Medium
11 of 401
Remembering +4 | -1
Gemmae are asexual buds, which originate from small receptacles called gemma cups.
These are found in
View answer and explanation
Correct option: B
Marchentia
Option B (Marchentia) is correct because gemmae cups are a characteristic feature of Marchantia, a liverwort, used for asexual reproduction.
12 Hard
12 of 401
Remembering +4 | -1
Natural system of classification was developed by
View answer and explanation
Correct option: C
Bentham and Hooker
Option C (Bentham and Hooker) is correct because Bentham and Hooker developed the natural system of classification, which considers multiple characteristics.
13 Hard
13 of 401
Understanding +4 | -1
Consider the following statements about green algae
I. Green algae are green due to the presence of chlorophyll-a and b pigments localised in chloroplast
II. Algae store food in form of starch in a specialised structures called pyrenoids located in chloroplast. Food may be stored in form of oil droplets
III. Vegetative reproduction occurs through cell division, fragmentation, stolons and tubers
Which of the statements given above are correct?
View answer and explanation
Correct option: B
I and III
Option A (I and II) is incorrect. The correct answer is that statements I and III are correct about green algae. Statement II is partially incorrect because starch is stored in pyrenoids, but stolons and tubers are not typical vegetative reproduction methods for green algae.
14 Easy
14 of 401
Understanding +4 | -1
Gymnosperms are naked seeded plants because
View answer and explanation
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.
15 Easy
15 of 401
Understanding +4 | -1
In Mosses Meiosis Occurs
View answer and explanation
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.
16 Medium
16 of 401
Understanding +4 | -1
Which of the following taxa shows zooidogamous oogamy?
I. Spirogyra II. Funaria
III. Pteris IV. Cycas
View answer and explanation
Correct option: D
II, III and IV
Option D (II, III and IV) is correct because Funaria, Pteris, and Cycas exhibit zooidogamous oogamy, where motile sperm cells swim to the egg.
17 Medium
17 of 401
Analyzing +4 | -1
In the given below example. How many plants are in which embryo and flower both present:
Spirogyra, Sargassum, Fern, Funaria, Cycas, Pinus, Volvox, Adiantum, Salvinia, Equisetum, Ginkgo, Psilotum, Eucalyptus, Petunia
View answer and explanation
Correct option: D
2
Option D (2) is correct because only Eucalyptus and Petunia possess both embryo and flower, as they are angiosperms.
18 Hard
18 of 401
Remembering +4 | -1
The main plant body in pteridophyte is
View answer and explanation
Correct option: A
Sporophyte (2n) which is differentiated into root, stem and leaf
Option A (Sporophyte (2n) which is differentiated into root, stem and leaf) is correct because the main plant body in pteridophytes is a diploid sporophyte differentiated into root, stem, and leaves.
19 Easy
19 of 401
Understanding +4 | -1
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?
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.
20 Medium
20 of 401
Understanding +4 | -1
Consider the following statements
I. Agar, one of the commercial products obtained from Gelidium and Gracilaria are used to grow microbes and in preparations of ice-creams and jellies
II. Chlorella and Spirogyra are used in sewage disposal ponds
III. Some species of marine algae like Porphyra,Laminaria and Sargassum are used as food
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 the uses of algae.
21 Easy
21 of 401
Remembering +4 | -1
Laminaria is a
View answer and explanation
Correct option: B
Brown algae
Option B (Brown algae) is correct because Laminaria is a genus of brown algae, commonly known as kelp.
22 Easy
22 of 401
Remembering +4 | -1
Stamen consists of
View answer and explanation
Correct option: A
Filament and anther
Option A (Filament and anther) is correct. A stamen consists of a filament and an anther.
23 Easy
23 of 401
Remembering +4 | -1
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.
24 Easy
24 of 401
Understanding +4 | -1
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.
25 Easy
25 of 401
Remembering +4 | -1
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.
26 Medium
26 of 401
Analyzing +4 | -1
Read the given statements and select the incorrect ones.

(i) Sporophyte in mosses is more elaborate than that in
liverworts.

(ii) Salvinia is homosporous.

(iii) Life-cycle in all spermatophytes is diplontic.

(iv) In Cycas, male cones and megasporophylls are borne
on the same trees.
View answer and explanation
Correct option: C
(ii) and (iv)
Option C ((ii) and (iv)) is correct because Salvinia is heterosporous and in Cycas, male cones and megasporophylls are borne on different trees.
27 Medium
27 of 401
Analyzing +4 | -1
A transverse section of a plant material shows the following anatomical features under a microscope:
Thick cuticle, Sunken stomata, discontinuous sclerenchymatous hypodermis, Armed
parenchyma, ‘T’ shaped sclerenchymatous girdle, Two-conjoint, collateral and open
vascular bundle
The plant material must be a
View answer and explanation
Correct option: C
Pinus needle
Option C (Pinus needle) is correct. The given anatomical features are characteristic of a Pinus needle, adapted for xerophytic conditions.
28 Medium
28 of 401
Understanding +4 | -1
Though Cycas has two cotyledons, this is not included in dicot because
View answer and explanation
Correct option: A
Of naked ovule
Option A (Of naked ovule) is correct because Cycas is a gymnosperm, characterized by having naked ovules, which is why it's not classified as a dicot despite having two cotyledons.
29 Hard
29 of 401
Understanding +4 | -1
[A]: Fossil plants serve as an index for paleoclimates.

[R]: Because plant adaptations to varied environmental conditions are well known.
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 fossil plants can indicate past climates due to plants' well-known adaptations to environmental conditions.
30 Easy
30 of 401
Understanding +4 | -1
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.
Revision notes and key takeaways

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Key Takeaways

  • ✓ This set contains 401 single-correct-answer MCQs on PLANT KINGDOM.
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