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NEET • BIOLOGY • MORPHOLOGY OF FLOWERING PLANTS
Morphology of flowering plants practice · Mixed difficulty
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121
Medium
121 of 334
Analyzing
+4 | -1
Select incorrectly matched pair
View answer and explanation
Correct option: B
Aestivation with unequal petals– cotton sized petals
Option B (Aestivation with unequal petals– cotton sized petals) is correct because cotton petals are of equal size, and the aestivation is twisted, not with unequal petals.
122
Medium
122 of 334
Analyzing
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Select the characters, which are not applicable to the family-Solanaceae? I. Epipetalous and syngenesious anthers. II.Bicarpellary and syncarpous ovary. III.Oblique ovary with axile placentation. IV.Stamens six, arranged in two whorls. V.Bicarpellary, syncarpous and inferior ovary.
View answer and explanation
Correct option: B
I, IV and V only
Option B (I, IV and V only) is correct because Solanaceae typically has epipetalous and syngenesious anthers, stamens arranged in two whorls, and an inferior ovary.
123
Medium
123 of 334
Understanding
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Which is correct to saprophytic angiosperm?
View answer and explanation
Correct option: A
They secrets enzyme outside the body and absorb nutrients
Option A (They secrets enzyme outside the body and absorb nutrients) is correct because saprophytic angiosperms obtain nutrients by secreting enzymes and absorbing the digested material.
124
Medium
124 of 334
Understanding
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Which of the following two are the resultant of stipule modifications? I.Spines in Ziziphus. II.Tendrils in Smilax. III.Tendrils in Nepenthes. IV.Spines in Argemone. V.Thorns in Bougainvellea.
View answer and explanation
Correct option: B
I and II
The correct answer is B (I and II) because spines in Ziziphus and tendrils in Smilax are both resultant of stipule modifications.
125
Medium
125 of 334
Remembering
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Natural system of classification were based upon
View answer and explanation
Correct option: D
All of the above
Option D (All of the above) is correct because natural systems of classification consider various factors, including structural embryology, phytochemistry, and anatomy, to establish relationships between organisms.
126
Easy
126 of 334
Remembering
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Respiratory roots are found in
View answer and explanation
Correct option: D
Mangrove plants
Option D (Mangrove plants) is correct because they grow in swampy areas and possess specialized respiratory roots called pneumatophores.
127
Medium
127 of 334
Remembering
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Colchicum autumnale belongs to
View answer and explanation
Correct option: C
Liliaceae
Option C (Liliaceae) is correct because Colchicum autumnale, commonly known as autumn crocus, belongs to the Liliaceae family.
128
Easy
128 of 334
Understanding
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Which one of the following is the specific xerophytic adaptation?
View answer and explanation
Correct option: C
Presence of long tap root system
Option C (Presence of long tap root system) is the correct xerophytic adaptation. Long tap roots help plants access water deep underground in arid environments.
129
Easy
129 of 334
Remembering
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Which of the following is a fatty oil yielding plant?
View answer and explanation
Correct option: A
Sunflower
Option A (Sunflower) is correct because sunflower seeds are a well-known source of fatty oil.
130
Hard
130 of 334
Remembering
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The type of placentation in which ovary is syncarpous, unilocular and ovules on sutures is called:
View answer and explanation
Correct option: B
Parietal placentation
Option B (Parietal placentation) is correct because parietal placentation involves a syncarpous, unilocular ovary with ovules attached to the inner walls or along ridges.
131
Easy
131 of 334
Remembering
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Seed coat has …A… layers I. Outer covering is called …B…. . II. Inner covering is called …C… . Complete the given set of statements (I to III) by choosing appropriate options for A to C
View answer and explanation
Correct option: B
A-2, B-testa, C-tegmen
Option B (A-2, B-testa, C-tegmen) is correct because the seed coat has two layers, with the outer layer being the testa and the inner layer being the tegmen.
132
Medium
132 of 334
Remembering
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Fibrous root system is mostly found in
View answer and explanation
Correct option: A
Monocot plants
Option A (Monocot plants) is correct because fibrous root systems are commonly found in monocot plants.
133
Easy
133 of 334
Remembering
+4 | -1
Alternate phyllotaxy is seen in
View answer and explanation
Correct option: C
Mustard
Option C (Mustard) is correct because Mustard exhibits alternate phyllotaxy, where a single leaf arises at each node in an alternating pattern.
134
Hard
134 of 334
Remembering
+4 | -1
A compound leaf, which appears as simple leaf due to the suppression of one or two leaflets is found in one of the following plants
View answer and explanation
Correct option: D
Citrus
Option D (Citrus) is correct because in Citrus, some leaflets of a compound leaf may be suppressed, making it appear as a simple leaf.
135
Hard
135 of 334
Remembering
+4 | -1
Geocarpic fruits are produced by
View answer and explanation
Correct option: C
Groundnut
Option C (Groundnut) is correct because groundnut (Arachis hypogaea) produces geocarpic fruits, meaning the fruits develop underground after the flower's pedicel elongates and pushes the developing ovary into the soil.
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136
Medium
136 of 334
Remembering
+4 | -1
Hypogynous flowers are seen in
View answer and explanation
Correct option: C
Pea
Option C (Pea) is correct because hypogynous flowers have the ovary positioned superior to other floral parts, which is characteristic of pea flowers.
137
Medium
137 of 334
Analyzing
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If a tree flowers thrice in a year in October,
January and July in Northern India, the plant
is
January and July in Northern India, the plant
is
View answer and explanation
Correct option: D
thermo sensitive but photo insensitive
Option D (thermo sensitive but photo insensitive) is correct because flowering thrice a year at different times (October, January, July) suggests the plant is responding to temperature changes rather than photoperiod (day length).
138
Easy
138 of 334
Understanding
+4 | -1
represents ?
View answer and explanation
Correct option: A
Superior ovary
Option A (Superior ovary) is correct because the underscore below the 'G' in a floral formula indicates a superior ovary.
139
Medium
139 of 334
Understanding
+4 | -1
Regions of root from the root tip to base are
View answer and explanation
Correct option: C
Region of meristematic Region of elongation Region of maturation
Option C is correct because the root regions are arranged in the order of meristematic activity, elongation, and maturation from the tip to the base.
140
Medium
140 of 334
Understanding
+4 | -1
What is the fruit that develops from a tricarpellary, syncarpous, inferior ovary with parietal placentation?
View answer and explanation
Correct option: A
Pepo
Option A (Pepo) is correct because pepo is a fleshy fruit that develops from a tricarpellary, syncarpous, inferior ovary with parietal placentation, characteristic of the Cucurbitaceae family.
141
Medium
141 of 334
Remembering
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The hardest part of drupe is
View answer and explanation
Correct option: B
Endocarp
Option B (Endocarp) is correct because the endocarp is the innermost layer of the pericarp in a drupe and is characteristically hard and stony.
142
Medium
142 of 334
Application
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Among the list of examples
Mustard, Plum, Rose, Peach, Brinjal, Petunia,
Guava, Cucumber
How many plants have hypogynous flower?
Mustard, Plum, Rose, Peach, Brinjal, Petunia,
Guava, Cucumber
How many plants have hypogynous flower?
View answer and explanation
Correct option: C
3
The correct answer is C (3) because Mustard, Brinjal, and Petunia have hypogynous flowers, where the ovary is superior.
143
Medium
143 of 334
Application
+4 | -1
In a flower of a plant the number of carpels is
equal to the number of inner whorl of perianth
lobes and cotyledons 1/3 of carpel number.
What is the arrangement of ovules on placenta
of the flower of that plant?
equal to the number of inner whorl of perianth
lobes and cotyledons 1/3 of carpel number.
What is the arrangement of ovules on placenta
of the flower of that plant?
View answer and explanation
Correct option: A
Axile
The correct answer is A (Axile) because if the number of carpels equals the number of inner whorl perianth lobes and cotyledons are 1/3 of the carpel number, it indicates a dicot with axile placentation.
144
Easy
144 of 334
Remembering
+4 | -1
The feature not related to family Fabaceae is
View answer and explanation
Correct option: D
Presence of perianth
Option D (Presence of perianth) is correct because while Fabaceae flowers do have a perianth (calyx and corolla), the question asks for a feature NOT related to the family. The presence of a perianth is a general characteristic of many flowering plants, not a unique feature of Fabaceae.
145
Hard
145 of 334
Understanding
+4 | -1
Read the following statements and select the correct option.
Statement A: The root is covered at the apex by a thimble-like structure.
Statement B: In maize seed, the outer covering of endosperm separates the embryo by aleurone layer.
Statement A: The root is covered at the apex by a thimble-like structure.
Statement B: In maize seed, the outer covering of endosperm separates the embryo by aleurone layer.
View answer and explanation
Correct option: C
Both the statements A and B are correct
Option C (Both the statements A and B are correct) is correct. The root apex is covered by a root cap, and the aleurone layer separates the embryo from the endosperm in maize seeds.
146
Easy
146 of 334
Remembering
+4 | -1
Endospermous seed among these is
View answer and explanation
Correct option: A
Castor
Option A (Castor) is correct because castor seeds retain endosperm at maturity, making them endospermous.
147
Easy
147 of 334
Remembering
+4 | -1
Leaf having completely divided lamina broken up into direct segment or leaflets is called
View answer and explanation
Correct option: C
Compound leaf
Option C (Compound leaf) is correct because a compound leaf is defined as having a completely divided lamina broken up into distinct segments or leaflets.
148
Medium
148 of 334
Analyzing
+4 | -1
Choose the odd one w.r.t. stem modification.
View answer and explanation
Correct option: C
Tendrils of pea
Option C (Tendrils of pea) is correct because tendrils of pea are leaf modifications, while the others (Tendrils of watermelon, Phylloclade, Thorns of Bougainvillea) are stem modifications.
149
Easy
149 of 334
Remembering
+4 | -1
In flower, different whorls arranged successively on the swollen end of the pedicel, that swollen end is called:-
View answer and explanation
Correct option: A
Thalamus
Option A (Thalamus) is correct because the thalamus is the swollen end of the pedicel where the floral whorls (calyx, corolla, androecium, and gynoecium) are arranged successively.
150
Hard
150 of 334
Remembering
+4 | -1
Nodulated roots bearing family is
View answer and explanation
Correct option: C
Papilionatae
Option C (Papilionatae) is correct because the Papilionatae (Fabaceae) family is known for having root nodules containing nitrogen-fixing bacteria.
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 121-150 of 334 questions