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NEET • BIOLOGY • MORPHOLOGY OF FLOWERING PLANTS
Morphology of flowering plants practice · Mixed difficulty
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271
Medium
271 of 334
Remembering
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I. Bear leaves and branches II. Conduction of water and minerals III. Storage of food These are the functions of
View answer and explanation
Correct option: B
Stem
Option B (Stem) is correct because stems bear leaves and branches, conduct water and minerals, and store food, fulfilling all the listed functions.
272
Medium
272 of 334
Understanding
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Monoecious inflorescence with unisexual flowers is?
View answer and explanation
Correct option: D
all of these
Option D is correct because cyathium, hypanthodium, and spadix can all be monoecious inflorescences with unisexual flowers.
273
Easy
273 of 334
Remembering
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Drupes are called stony fruits because they have hard
View answer and explanation
Correct option: D
Endocarp
Option D (Endocarp) is correct because drupes are characterized by having a hard, stony endocarp that surrounds the seed.
274
Easy
274 of 334
Understanding
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Statement I: The fibrous root system is better adapted than the tap root system for anchorage to the soil.
Statement II: The primary root and its branches constitute top root system.
Statement II: The primary root and its branches constitute top root system.
View answer and explanation
Correct option: A
Both statement I and II are correct.
Option A (Both statement I and II are correct) is the correct answer. Fibrous roots are indeed better for anchorage, and tap root systems consist of a primary root and its branches.
275
Hard
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Remembering
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The examples of cellular endosperm are (1)
Citrus, Malea, Primula (2) Adoxa, Cetranthus,
Datura (3) Phoenix, Acer, Arachis (4)
Impatiens, Magnolia, Cetranthus
Citrus, Malea, Primula (2) Adoxa, Cetranthus,
Datura (3) Phoenix, Acer, Arachis (4)
Impatiens, Magnolia, Cetranthus
View answer and explanation
Correct option: C
2 and 4 are correct
Option C (2 and 4 are correct) is correct because Citrus, Malea, Primula exhibit nuclear endosperm, while Adoxa, Cetranthus, Datura, Impatiens, and Magnolia exhibit cellular endosperm.
276
Hard
276 of 334
Remembering
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The flowers are Zygomorphic in:
(a) Mustard
(b) Gulmohar
(c) Cassia
(d) Datura
(e) Chilly
Choose the correct answer from the options given below:
(a) Mustard
(b) Gulmohar
(c) Cassia
(d) Datura
(e) Chilly
Choose the correct answer from the options given below:
View answer and explanation
Correct option: C
(b), (c) Only
Option C ((b), (c) Only) is correct because Gulmohar and Cassia exhibit zygomorphic flowers.
277
Hard
277 of 334
Remembering
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The reproductive unit of angiosperms is
View answer and explanation
Correct option: C
Flower
Option C (Flower) is correct because the flower is the reproductive unit in angiosperms, responsible for sexual reproduction through pollination and fertilization.
278
Hard
278 of 334
Remembering
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Haustoria or sucking roots are found in
View answer and explanation
Correct option: A
Cuscuta
Option A (Cuscuta) is correct because Cuscuta uses haustoria to penetrate the host plant and absorb nutrients.
279
Medium
279 of 334
Remembering
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Fibrous root system originates from the base of
View answer and explanation
Correct option: B
Stem
Option B (Stem) is correct because fibrous root systems develop from the base of the stem.
280
Easy
280 of 334
Understanding
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Which of the following statement(s) is/are correct about calyx?
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Correct option: D
All of these
Option D (All of these) is correct because all the statements about the calyx are accurate.
281
Easy
281 of 334
Understanding
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Ginger is an underground stem. It is distinguished from root because it
View answer and explanation
Correct option: C
Has nodes and internodes
The correct answer is C (Has nodes and internodes) because the presence of nodes and internodes distinguishes a stem from a root.
282
Medium
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Analyzing
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Assertion: Flower of racemose inflorescence are
pollinated by insects.
Reason: In racemose head infloresence, the
florets are arranged in a centripetal fashion.
pollinated by insects.
Reason: In racemose head infloresence, the
florets are arranged in a centripetal fashion.
View answer and explanation
Correct option: B
If both Assertion and Reason are true but Reason
is not the correct explanation of Assertion
is not the correct explanation of Assertion
Option B is correct because both the assertion (racemose flowers pollinated by insects) and the reason (centripetal arrangement in racemose head) are true, but the reason is not the correct explanation for the assertion.
283
Medium
283 of 334
Remembering
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Edible part if mango is
View answer and explanation
Correct option: D
Mesocarp
Option D (Mesocarp) is correct because the mesocarp is the fleshy middle layer of the mango fruit, which is the primary edible part.
284
Hard
284 of 334
Understanding
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[A]: Insectivorous plants grow in carbohydrate deficient soil.
[R]: Insectivorous plants grow in nitrogen rich soil.
[R]: Insectivorous plants grow in nitrogen rich soil.
View answer and explanation
Correct option: D
Both A and R are false
Option D (Both A and R are false) is correct because insectivorous plants grow in nutrient-deficient (especially nitrogen-deficient), not carbohydrate-deficient or nitrogen-rich, soils.
285
Easy
285 of 334
Understanding
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Select the incorrect statement w.r.t. main functions of root system.
View answer and explanation
Correct option: B
Synthesis and storage of food
Option B (Synthesis and storage of food) is the incorrect statement. While roots can store food, they are not primarily involved in its synthesis. Leaves are the primary site of photosynthesis.
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286
Hard
286 of 334
Remembering
+4 | -1
In hypogeal seed germination, the structure help to push the cotyledon inside the soil is
View answer and explanation
Correct option: A
Epicotyl
Option A (Epicotyl) is correct because in hypogeal germination, the epicotyl elongates, pushing the plumule up while the cotyledons remain below the soil surface.
287
Medium
287 of 334
Application
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How many of the following plants belong to a family whose flowers have six tepals and six epitepalous stamens?
View answer and explanation
Correct option: B
Five
Option B (4) is correct because Indigofera, Lupin, Sesbania, and Trifollum are the only plants from the list that have zygomorphic flowers with either valvate or imbricate aestivation.
288
Easy
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Remembering
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Root pockets are seen in?
View answer and explanation
Correct option: A
Pistia
Option A (Pistia) is correct because Pistia (water lettuce) has root pockets for buoyancy and protection.
289
Easy
289 of 334
Understanding
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Study the following statements. I.Food is stored in the leaf bases. II.Buds develop from leaf apices. III.Presence of tunicated bulb. Identify the correct combination with reference to Scilla.
View answer and explanation
Correct option: A
I, II and III are correct
Option A (I, II and III are correct) is correct because Scilla stores food in leaf bases, develops buds from leaf apices, and has a tunicated bulb.
290
Medium
290 of 334
Remembering
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Smallest angiosperm plant is?
View answer and explanation
Correct option: A
Wolffia
Option A (Wolffia) is correct because Wolffia is the smallest angiosperm plant.
291
Easy
291 of 334
Remembering
+4 | -1
How many organisms in the list given below are autotrophs? Lactobacillus, Nostoc, Chara, Nitrosomonas, Nitrobacteria, Streptomyces, Saccharomyces, Trypanosoma, Porphyra, Wolffia
View answer and explanation
Correct option: D
Six
Option D (Six) is correct because Nostoc, Chara, Nitrosomonas, Nitrobacteria, Porphyra, and Wolffia are autotrophs.
292
Hard
292 of 334
Remembering
+4 | -1
The leaves are modified into tendrils, hook, pitcher and bladder in the following plants respectively
View answer and explanation
Correct option: A
Sweet pea, cat’s nail, Nepenthes, Utricularia
Option A (Sweet pea, cat’s nail, Nepenthes, Utricularia) is correct because sweet pea has tendrils, cat's nail has hooks, Nepenthes has pitchers, and Utricularia has bladders.
293
Easy
293 of 334
Understanding
+4 | -1
Identify the incorrect match.
View answer and explanation
Correct option: D
Actinomorphic – Gulmohar
Option D (Actinomorphic – Gulmohar) is the incorrect match because Gulmohar is zygomorphic, not actinomorphic.
294
Medium
294 of 334
Understanding
+4 | -1
Root is distinguishable from stem in
View answer and explanation
Correct option: D
All of the above
Option D (All of the above) is correct. Roots are distinguishable from stems by having root hairs, a root cap, and the absence of nodes and internodes.
295
Easy
295 of 334
Remembering
+4 | -1
The smallest Angiospermic flower is
View answer and explanation
Correct option: A
Wolffia
Option A (Wolffia) is correct because Wolffia is the smallest angiosperm and has the smallest flowers.
296
Easy
296 of 334
Understanding
+4 | -1
Which is true about bulbils in Agave
View answer and explanation
Correct option: D
All the above
The correct answer is D (All the above) because bulbils in Agave are modified floral buds, germinate on the inflorescence, and exhibit vivipary.
297
Hard
297 of 334
Remembering
+4 | -1
Bracts enclosing a cluster of flowers are known as
View answer and explanation
Correct option: B
Involucre
Option B (Involucre) is correct because an involucre is a whorl of bracts that encloses a cluster of flowers.
298
Easy
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Understanding
+4 | -1
Read the folowing characteristics and choose the family which shows them.
(a) Stem can be erect, branched and cylindrical.
(b) Bracteate or ebracteate bisexual flowers.
(c) Presence of monoadelphous, monothecous anther.
(d) Dry, capsule type of fruit.
(a) Stem can be erect, branched and cylindrical.
(b) Bracteate or ebracteate bisexual flowers.
(c) Presence of monoadelphous, monothecous anther.
(d) Dry, capsule type of fruit.
View answer and explanation
Correct option: A
Malvaceae
Option A (Malvaceae) is correct because the characteristics listed (erect stem, bisexual flowers, monoadelphous stamens, capsule fruit) are all features of the Malvaceae family.
299
Easy
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Remembering
+4 | -1
Which of the following plant parts in garlic and onion are edible?
View answer and explanation
Correct option: B
Fleshy leaves
Option B (Fleshy leaves) is correct because the edible parts of garlic and onion are the fleshy leaves, which store food.
300
Hard
300 of 334
Remembering
+4 | -1
A root was described as adventitious root because it
View answer and explanation
Correct option: A
Arose from plumule
Option A (Arose from plumule) is correct because adventitious roots arise from parts of the plant other than the radicle, such as the plumule, stem, or leaves.
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 271-300 of 334 questions