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NEET • BIOLOGY • PLANT KINGDOM
Plant kingdom practice · Mixed difficulty
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61
Easy
61 of 401
Remembering
+4 | -1
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.
62
Hard
62 of 401
Remembering
+4 | -1
A typical of angiospermic embryo sac is usually
View answer and explanation
Correct option: D
Seven celled
Option D (Seven celled) is correct because a typical angiosperm embryo sac at maturity is composed of seven cells: one egg cell, two synergid cells, one central cell (containing two polar nuclei), and three antipodal cells.
63
Hard
63 of 401
Remembering
+4 | -1
Characters of both conifers and cycads are found in
View answer and explanation
Correct option: A
Ginkgo
Option A (Ginkgo) is correct because Ginkgo biloba possesses characteristics of both conifers and cycads, representing an evolutionary link between them.
64
Medium
64 of 401
Remembering
+4 | -1
Turpentine oil is obtained from
View answer and explanation
Correct option: A
Pinus longifolia
Option A (Pinus longifolia) is correct because Pinus longifolia is a specific species of pine tree known for producing turpentine oil.
65
Easy
65 of 401
Remembering
+4 | -1
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.
66
Easy
66 of 401
Understanding
+4 | -1
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.
67
Easy
67 of 401
Remembering
+4 | -1
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.
68
Medium
68 of 401
Remembering
+4 | -1
The members of brown algae are found primarily in
View answer and explanation
Correct option: B
Marine habitat
Option B (Marine habitat) is correct because brown algae are predominantly found in marine environments.
69
Medium
69 of 401
Remembering
+4 | -1
Members of class-Rhodophyceae are known as red algae due to the presence of red pigment
View answer and explanation
Correct option: A
r-phycoerythrin
Option A (r-phycoerythrin) is correct because r-phycoerythrin is the specific red pigment responsible for the red color of Rhodophyceae.
70
Easy
70 of 401
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.
71
Hard
71 of 401
Understanding
+4 | -1
[A]: Allopatric species are geographically isolated whereas sympatric species coexist.
[R]: Allopatric species can be accepted as separate species unless they pass the test of sympatry.
[R]: Allopatric species can be accepted as separate species unless they pass the test of sympatry.
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 allopatric species are geographically isolated, and sympatric species coexist, and the test of sympatry is used to confirm species status.
72
Easy
72 of 401
Analyzing
+4 | -1
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.
73
Medium
73 of 401
Remembering
+4 | -1
Angiospermic plants are divided into
View answer and explanation
Correct option: C
Both (a) and (b)
Option C (Both (a) and (b)) is correct because angiosperms are divided into two main classes: dicots and monocots.
74
Medium
74 of 401
Remembering
+4 | -1
Iodine is found in algae
View answer and explanation
Correct option: D
Laminaria
Option D (Laminaria) is correct because Laminaria, a brown alga, is known to accumulate iodine.
75
Medium
75 of 401
Understanding
+4 | -1
What is true in members of
gymnosperms?
gymnosperms?
View answer and explanation
Correct option: D
All the above
Option D (All the above) is correct because gymnosperms can have parasitic gametophytes, often thrive in xerophytic habitats, and possess archegonia inside the ovule.
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76
Medium
76 of 401
Understanding
+4 | -1
A newly discovered plant was found to be a gymnosperm because it
View answer and explanation
Correct option: A
Lacks ovary but possesses exposed ovules
Option A (Lacks ovary but possesses exposed ovules) is correct because the defining characteristic of gymnosperms is the presence of naked ovules, not enclosed within an ovary.
77
Medium
77 of 401
Understanding
+4 | -1
In Spirogyra,
View answer and explanation
Correct option: A
Filaments in which lateral conjugation occur are homothallic
Option A (Filaments in which lateral conjugation occur are homothallic) is correct because in Spirogyra, lateral conjugation occurs within the same filament (homothallic).
78
Hard
78 of 401
Remembering
+4 | -1
Male sex organs in an angiospermic flower is
View answer and explanation
Correct option: A
Stamen
Option A (Stamen) is correct because the stamen is the male reproductive organ in a flower, consisting of the anther and filament.
79
Easy
79 of 401
Analyzing
+4 | -1
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.
80
Hard
80 of 401
Understanding
+4 | -1
[A]: Some of the Sea kelps are used as fertilizers.
[R]: They are important source of minerals.
[R]: They are important source of minerals.
View answer and explanation
Correct option: A
Both A and R are true and R is the correct explanation of A
Option A is correct because sea kelps are used as fertilizers due to their high mineral content, making the reason a correct explanation for the assertion.
81
Easy
81 of 401
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.
82
Easy
82 of 401
Understanding
+4 | -1
Assertion: Mosses along with lichens are the first organisms
to colonize rocks.
Reason: They decompose rocks by scereting acid
substances
to colonize rocks.
Reason: They decompose rocks by scereting acid
substances
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 mosses and lichens are indeed the first organisms to colonize rocks, and they decompose rocks by secreting acidic substances, which is why they are able to colonize rocks.
83
Hard
83 of 401
Understanding
+4 | -1
Choose the correct statements for the sporophyte of bryophytes,
I. sporophyte is multicellular, not free living but attached to the gametophyte for nourishment from it
II. some cells of the sporophyte under go meiosis to produce haploid spores
III. these spores germinate to produce gametophyte
I. sporophyte is multicellular, not free living but attached to the gametophyte for nourishment from it
II. some cells of the sporophyte under go meiosis to produce haploid spores
III. these spores germinate to produce gametophyte
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 sporophyte of bryophytes: it is multicellular and dependent on the gametophyte, it produces haploid spores via meiosis, and these spores germinate to form the gametophyte.
84
Medium
84 of 401
Remembering
+4 | -1
In Spirogyra the sporophytic stage is dominant
View answer and explanation
Correct option: B
FALSE
Option B is correct because Spirogyra exhibits a haplontic life cycle, where the dominant stage is the gametophyte (n), not the sporophyte (2n).
85
Medium
85 of 401
Understanding
+4 | -1
Which of the following is the difference between a monocotyledonous and a dicotyledonous plant?
View answer and explanation
Correct option: C
Monocot have one cotyledons whereas dicot have two cotyledons
Option C (Monocot have one cotyledons whereas dicot have two cotyledons) is correct because the primary difference between monocots and dicots lies in the number of cotyledons present in their seeds.
86
Hard
86 of 401
Understanding
+4 | -1
Statement I: Main plant body of bryophytes is sporophytic.
Statement II: Main plant body of pteridophytes is gametophytic.
Statement II: Main plant body of pteridophytes is gametophytic.
View answer and explanation
Correct option: B
Both statement I and II are incorrect.
Option B (Both statement I and II are incorrect) is correct because the main plant body of bryophytes is gametophytic, and the main plant body of pteridophytes is sporophytic.
87
Medium
87 of 401
Understanding
+4 | -1
Which one example behaves like a master and slave relationship?
View answer and explanation
Correct option: D
Algae and Fungi
Option D (Algae and Fungi) is correct because in lichens, the relationship between algae and fungi often resembles a master-slave dynamic where the fungus provides structure and the algae provides food.
88
Medium
88 of 401
Understanding
+4 | -1
Choose the correct statement about liverworts
I. In liverworts sexual reproduction occurs by the fusion of antherozoids and egg, which are produced in anthridium and archegonium, respectively
II. Both male and female sex organs may be present on same thalli or different thalli
III. Zygote give rise to sporophyte, which is differentiated into food, seta and capsule
IV. Some cells of capsule undergoes meiosis and give rise to haploid spores
I. In liverworts sexual reproduction occurs by the fusion of antherozoids and egg, which are produced in anthridium and archegonium, respectively
II. Both male and female sex organs may be present on same thalli or different thalli
III. Zygote give rise to sporophyte, which is differentiated into food, seta and capsule
IV. Some cells of capsule undergoes meiosis and give rise to haploid spores
View answer and explanation
Correct option: D
I, II, III and IV
Option D (I, II, III and IV) is correct because all the statements accurately describe the characteristics of liverworts.
89
Medium
89 of 401
Remembering
+4 | -1
Embryo sac consists of
View answer and explanation
Correct option: D
All of the above
Option D (All of the above) is correct because the embryo sac in angiosperms contains one egg cell, two synergids, three antipodal cells, and two polar nuclei.
90
Medium
90 of 401
Remembering
+4 | -1
In liverworts asexual reproduction takes place by
View answer and explanation
Correct option: A
Gemmae and fragmentation of thalli
Option A (Gemmae and fragmentation of thalli) is correct because liverworts reproduce asexually through gemmae formation and fragmentation of their thallus.
Revision notes and key takeaways
Review PLANT KINGDOM in your textbook or class notes, then use this set to check your understanding.
Showing 61-90 of 401 questions