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NEET • BIOLOGY • MORPHOLOGY OF FLOWERING PLANTS
Morphology of flowering plants practice · Mixed difficulty
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31
Hard
31 of 334
Remembering
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Hypanthodium inflorescence is found in:-
View answer and explanation
Correct option: B
Option B () is correct because hypanthodium inflorescence is a characteristic feature of the genus (e.g., fig).
32
Hard
32 of 334
Application
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A Vascular has 300 leaves. 15 % of these belong to mustard 20 % to Calotropis 10 % Guava, 15 % to sunflower and the remaining to Alstonia, if 6 leaves are present at each node of alstonia. Then what is the total number of nodes seen in various twigs present in vasculum?
View answer and explanation
Correct option: C
155
Option C (155) is correct because after calculating the number of leaves for each plant type, we find 30 Alstonia leaves, which with 6 leaves per node, gives 5 Alstonia nodes, and adding the other nodes gives 155.
33
Medium
33 of 334
Remembering
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When the floral appendages are in multiple of 3, 4, 5, they are respectively called
View answer and explanation
Correct option: A
Trimerous, tetramerous, pentamerous
Option A (Trimerous, tetramerous, pentamerous) is correct because these terms describe flowers with floral appendages in multiples of 3, 4, and 5, respectively.
34
Easy
34 of 334
Understanding
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Cymose inflorescence is identified by :
View answer and explanation
Correct option: C
Both (1) and (2)
Option C (Both (1) and (2)) is correct because cymose inflorescence is characterized by basipetal arrangement of flowers and limited growth of the main axis due to its termination in a flower.
35
Easy
35 of 334
Remembering
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Stilt roots are present in
View answer and explanation
Correct option: B
Maize
Option B (Maize) is correct because maize (corn) is a common example of a plant with stilt roots.
36
Medium
36 of 334
Analyzing
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Choose mismatch from the following
View answer and explanation
Correct option: D
Pea – Single stamen in a flower
Option C ((A) is true but (R) is false) is correct because five fused sepals are found in Papilionoideae, but the odd sepal is anterior, not posterior.
37
Medium
37 of 334
Remembering
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Vessels and companion cells are characteristic of
View answer and explanation
Correct option: A
Angiosperm
Option A (Angiosperm) is correct because vessels and companion cells are characteristic features of angiosperms.
38
Easy
38 of 334
Understanding
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Assertion (A) : In Nepenthes leaves are modified to trap insects
Reason (R) : Insects serve as nitrogen supplements
Reason (R) : Insects serve as nitrogen supplements
View answer and explanation
Correct option: B
Both (A) & (R) are true and (R) is the correct explanation of (A)
Option B (Both (A) & (R) are true and (R) is the correct explanation of (A)) is correct because Nepenthes leaves are modified to trap insects, and the insects serve as nitrogen supplements for the plant.
39
Medium
39 of 334
Application
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A plant has an androecium with monadelphous stamens, monothecous and reniform anthers. They corolla exhibits contorted aestivation. The plant could be
View answer and explanation
Correct option: D
Hibiscus
Option D (Hibiscus) is correct because Hibiscus has monadelphous stamens, monothecous and reniform anthers, and contorted aestivation.
40
Easy
40 of 334
Understanding
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(A) The flowers of Liliaceae members are often trimerous
(R) The flowers of Liliaceae are with five whorls of perianth members
(R) The flowers of Liliaceae are with five whorls of perianth members
View answer and explanation
Correct option: C
(A) is True but (R) is false
Option C ((A) is True but (R) is false) is correct because Liliaceae flowers are trimerous (A is true), but they have two whorls of perianth (tepals), not five (R is false).
41
Medium
41 of 334
Remembering
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Which of the given is medicinal plant of family Fabaceae?
View answer and explanation
Correct option: C
Muliathi
Option C (Muliathi) is correct because Muliathi (Licorice) is a medicinal plant belonging to the Fabaceae family, known for its various medicinal properties.
42
Easy
42 of 334
Understanding
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The insectivorous plants are
View answer and explanation
Correct option: C
Both (1) and (2)
Option C (Both (1) and (2)) is correct because insectivorous plants are both autotrophic (produce their own food) and heterotrophic (derive nutrients from insects).
43
Hard
43 of 334
Understanding
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Assertion: In spiral phyllotaxy, many leaves are present on a node.
Reason: In opposite phyllotaxy, two leaves are borne on a node.
Reason: In opposite phyllotaxy, two leaves are borne on a node.
View answer and explanation
Correct option: D
If the assertion is false but reason is true
The correct answer is D (If the assertion is false but reason is true) because spiral phyllotaxy has one leaf per node, while opposite phyllotaxy has two leaves per node.
44
Easy
44 of 334
Remembering
+4 | -1
The bladder serving as floats for trapping insects is found in
View answer and explanation
Correct option: B
Utricularia
Option B (Utricularia) is correct because Utricularia, also known as bladderwort, has bladders that serve as traps for insects.
45
Medium
45 of 334
Understanding
+4 | -1
Which of the following are floral characters of Malvaceae?
View answer and explanation
Correct option: D
Jointed pedicel, bracteate, bracteolate, hermaphrodite, pentamerous, actinomorphic, complete and superior ovary
Option D (Jointed pedicel, bracteate, bracteolate, hermaphrodite, pentamerous, actinomorphic, complete and superior ovary) is correct because it accurately describes the floral characteristics of Malvaceae.
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46
Medium
46 of 334
Remembering
+4 | -1
How many of the given plants have zygomorphic flowers?
Mustard, Datura, Chilli, Gulmohur, Bean
Mustard, Datura, Chilli, Gulmohur, Bean
View answer and explanation
Correct option: C
Two
Option C (Two) is correct because Gulmohur and Bean have zygomorphic flowers, while Mustard, Datura, and Chilli have actinomorphic flowers.
47
Easy
47 of 334
Understanding
+4 | -1
Which of the following statements is incorrect regarding leaves of silk cotton?
View answer and explanation
Correct option: B
Leaflets develop at the tip of rachis
Option B (Leaflets develop at the tip of rachis) is correct because silk cotton leaves are palmately compound, where leaflets arise from a common point at the petiole's tip, not along the rachis.
48
Easy
48 of 334
Remembering
+4 | -1
Tulip belong to family
View answer and explanation
Correct option: B
Liliaceae
Option B (Liliaceae) is correct because Tulip is a genus within the Liliaceae family, characterized by its bulbous habit and showy flowers.
49
Medium
49 of 334
Remembering
+4 | -1
Viscum is a
View answer and explanation
Correct option: D
Partial stem parasite
Option D (Partial stem parasite) is correct because Viscum (mistletoe) is a partial stem parasite, meaning it derives some nutrients from the host stem but can also photosynthesize.
50
Medium
50 of 334
Analyzing
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The triploid number of chromosomes of the first taxon in 10 times more than the haploid number of chromosomes of the second taxon, while the diploid number of the third taxon is six time more than the haploid number of the fourth taxon. Which one of the following shows the ascending order of the number of chromosomes in their respective endosperm?
View answer and explanation
Correct option: B
Allium-Oryza-Nicotiana-Saccharum
The correct answer is B (Allium-Oryza-Nicotiana-Saccharum) because it represents the ascending order of chromosome numbers in the endosperm of the given plants, calculated based on the provided ratios.
51
Hard
51 of 334
Remembering
+4 | -1
Juicy hair-like structures observed in the lemon fruit develop from
View answer and explanation
Correct option: A
Endocarp
Option A (Endocarp) is correct because the juicy hair-like structures in lemon fruit develop from the inner layer of the fruit wall, which is the endocarp.
52
Easy
52 of 334
Remembering
+4 | -1
Edible part of the apple is
View answer and explanation
Correct option: C
Thalamus
Option C (Thalamus) is correct because the edible part of an apple is the fleshy thalamus, which is the receptacle of the flower.
53
Medium
53 of 334
Remembering
+4 | -1
Sorosis is found in
View answer and explanation
Correct option: D
Both (1) and (2)
Option D (Both (1) and (2)) is correct because both jackfruit and mulberry are examples of sorosis fruits.
54
Hard
54 of 334
Understanding
+4 | -1
[A]: The function of phyllotaxy is to display leaves properly.
[R]: It is for getting maximum light by all leaves so that chance of shading is reduced.
[R]: It is for getting maximum light by all leaves so that chance of shading is reduced.
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 phyllotaxy's function is indeed to display leaves properly for maximum light capture, reducing shading.
55
Easy
55 of 334
Remembering
+4 | -1
Stem develops from
View answer and explanation
Correct option: C
Plumule
Option C (Plumule) is correct because the stem develops from the plumule, which is the embryonic shoot within a seed.
56
Hard
56 of 334
Understanding
+4 | -1
Which of the following statements is correct?
View answer and explanation
Correct option: C
The ovules are pendulous in Nelumbo
Option D (Lateral style is found in Ocimum) is correct because the style in Ocimum (Tulsi) arises laterally from the ovary.
57
Medium
57 of 334
Remembering
+4 | -1
In Amorphophallus, vegetative reproduction occurs through
View answer and explanation
Correct option: B
Corm
Option B (Corm) is correct because Amorphophallus reproduces vegetatively through corms, which are underground stems.
58
Hard
58 of 334
Understanding
+4 | -1
Assertion (A): Actinomorphic flower shows radial symmetry.
Reason (R): Mustard, datura, chilli have actinomorphic flowers.
Reason (R): Mustard, datura, chilli have actinomorphic flowers.
View answer and explanation
Correct option: B
Both A and R are true, R is not the correct explanation of A
Option B (Both A and R are true, R is not the correct explanation of A) is correct because actinomorphic flowers do show radial symmetry, and mustard, datura, and chilli are examples of plants with actinomorphic flowers, but the reason doesn't explain the symmetry itself.
59
Medium
59 of 334
Analyzing
+4 | -1
Which of the odd type of vegetable in a basket
containing the following?
containing the following?
View answer and explanation
Correct option: B
Potatoes
Option B (Potatoes) is correct because potatoes are modified stems (tubers), while beet roots, carrots, and radishes are modified roots.
60
Medium
60 of 334
Remembering
+4 | -1
The family containing mustard and its main characters are
View answer and explanation
Correct option: A
Brassicaceae - Tetramerous flowers, six stamens, bicarpellary gynoecium, siliqua type fruit
Option A (Brassicaceae - Tetramerous flowers, six stamens, bicarpellary gynoecium, siliqua type fruit) is correct because these are the defining characteristics of the Brassicaceae family, which includes mustard.
Revision notes and key takeaways
Review MORPHOLOGY OF FLOWERING PLANTS in your textbook or class notes, then use this set to check your understanding.
Showing 31-60 of 334 questions