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NEET • BIOLOGY • PLANT KINGDOM

Plant kingdom practice · Easy

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61 Easy

61 of 115

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Eight nucleated female gametophyte is found in

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Correct option: C

Angiosperms

Option C (Angiosperms) is correct because angiosperms are characterized by having an eight-nucleated female gametophyte (embryo sac).

62 Easy

62 of 115

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Phycology is the study of

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Correct option: A

Algae

Option A (Algae) is correct because phycology is the branch of botany that deals with the study of algae.

63 Easy

63 of 115

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Carrageen, a jelly-like substance, is obtained from a marine alga called

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Correct option: A

Red algae

Option A (Red algae) is correct because carrageenan is a jelly-like substance obtained from certain species of marine red algae.

64 Easy

64 of 115

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Microspores of the following plants are also called as pollen grains?

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Correct option: D

Spermatophytes

Option D (Spermatophytes) is correct because microspores of spermatophytes are indeed called pollen grains, as spermatophytes are seed-bearing plants.

65 Easy

65 of 115

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Read the following statements.

(a) The system of classification based on evolutionary relationships among various organisms was proposed by Linnaeus.

(b) Eudorina shows anisogamy.

(c) Laminarin is the chief storage food in Phaeophyceae members.

(d) Haplontic life cycle is prevalent in mosses.

How many of the above statement(s) is/are correct?

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Correct option: C

Option C (2) is correct because statements (b) and (c) are correct. Linnaeus did not propose classification based on evolutionary relationships, and mosses have a haplodiplontic life cycle.

66 Easy

66 of 115

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In pteridophytes, gametophytes require …A… to grow

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Correct option: A

Cool, damp and shady places

Option A (Cool, damp and shady places) is correct because pteridophytes require these conditions for the gametophyte to grow and for fertilization to occur.

67 Easy

67 of 115

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Highly reduced gametophyte

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Correct option: D

Angiosperm

Option D (Angiosperm) is correct because angiosperms have the most reduced gametophyte stage compared to other plant groups.

68 Easy

68 of 115

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Assertion (A): Sexual reproduction of Spirogyra is isogamous type.

Reason (R): Both of the fusing gametes of Spirogyra are non-flagellated and similar in size.

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Correct option: A

Both (A) & (R) are true and the (R) is the correct explanation of the (A)

Option A (Both (A) & (R) are true and the (R) is the correct explanation of the (A)) is correct because Spirogyra exhibits isogamous sexual reproduction, and the reason correctly explains why: both gametes are non-flagellated and similar in size.

69 Easy

69 of 115

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Choose the option that represents different genera included within pteridophytes

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Correct option: B

Selaginella, Lycopodium, Equisetum and Dryopteris

Option B is correct because Selaginella, Lycopodium, Equisetum, and Dryopteris are all distinct genera belonging to the Pteridophyta.

70 Easy

70 of 115

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Select the mismatched pair.

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Correct option: B

Equisetum – Heterosporous

Option B (Equisetum – Heterosporous) is correct because Equisetum is a homosporous plant, not heterosporous.

71 Easy

71 of 115

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The cells which do not degenerate after fertilization in 15
I) Synergids II) Antipodals III) Egg Cell IV) Secondary Nucleus
The Correct answer is

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Correct option: C

III,IV

Option C (III,IV) is correct because the egg cell and secondary nucleus are the cells that do not degenerate after fertilization, as they form the zygote and endosperm, respectively.

72 Easy

72 of 115

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Assertion: Half of the total

C{O_2}

fixation on earth is
carried out by algae.
Reason: Algae increases the level of dissolved oxygen
in their nearby environment

View answer and explanation

Correct option: B

If both the assertion and reason are true but the
reason is not a correct explanation of the
assertion

Option B (If both the assertion and reason are true but the reason is not a correct explanation of the assertion) is correct because while both statements are true, the increased oxygen level is not the primary reason for the high CO2 fixation by algae.

73 Easy

73 of 115

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Angiosperms are also called

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Correct option: C

Flowering plants

Option C (Flowering plants) is correct because angiosperms are characterized by the presence of flowers, which are their reproductive structures.

74 Easy

74 of 115

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Photosynthetic pigments of class-Rhodophyceae (red algae) are

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Correct option: C

Chlorophyll-a, d

Option C (Chlorophyll-a, d) is correct because Rhodophyceae (red algae) characteristically possess chlorophyll a and d as their primary photosynthetic pigments.

75 Easy

75 of 115

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Which of the following contain xylem vessel ?

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Correct option: D

Angiosperm

Option D (Angiosperm) is correct because xylem vessels are a characteristic feature of angiosperms, which are more advanced vascular plants.

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

76 Easy

76 of 115

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Mark the correct statement about Selaginella.

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Correct option: B

The spores germinate to give rise free-living, multicellular thalloid gametophytes

Option B (The spores germinate to give rise free-living, multicellular thalloid gametophytes) is correct because Selaginella's spores do indeed germinate into free-living, multicellular thalloid gametophytes.

77 Easy

77 of 115

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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.

78 Easy

78 of 115

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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.

79 Easy

79 of 115

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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).

80 Easy

80 of 115

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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.

81 Easy

81 of 115

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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.

82 Easy

82 of 115

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Peat Moss is

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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.

83 Easy

83 of 115

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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.

84 Easy

84 of 115

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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.

85 Easy

85 of 115

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Select mismatched pair?

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Correct option: A

Smallest angiosperm – Rafflesia

Option A (Smallest angiosperm – Rafflesia) is the mismatched pair because Rafflesia is the largest flower, not the smallest angiosperm. The smallest angiosperm is Wolffia.

86 Easy

86 of 115

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Chlorophyll-b is not present in

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Correct option: D

Blue-green algae

Option D (Blue-green algae) is correct because chlorophyll-b is not present in blue-green algae (cyanobacteria).

87 Easy

87 of 115

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Gymnosperms differ from ferns in having/being

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Correct option: C

Ovule

Option C (Ovule) is correct because gymnosperms have ovules, which develop into seeds after fertilization, while ferns do not have ovules.

88 Easy

88 of 115

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Poly – Sulphate esters are found in the cell walls of

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Correct option: D

Rhodophyceae

Option D (Rhodophyceae) is correct because poly-sulphate esters are found in the cell walls of red algae (Rhodophyceae), contributing to their unique cell wall structure.

89 Easy

89 of 115

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In angiosperms endosperm is

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Correct option: C

Triploid

Option C (Triploid) is correct because endosperm in angiosperms results from the fusion of a sperm nucleus with two polar nuclei, resulting in a triploid (3n) structure.

90 Easy

90 of 115

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Rhodophytes are commonly called as

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Correct option: B

Red algae

Option B (Red algae) is correct because Rhodophytes are indeed commonly known as red algae due to the presence of the pigment phycoerythrin.

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 · Easy

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