Angiosperms — NEET Biology MCQs with Solutions
Free NEET Biology Angiosperms MCQs with step-by-step solutions (26 questions). Part of Plant Kingdom. Practise online on Prepizo — no login needed.
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Questions with solutions
Q1 — Angiosperms · easy · theory
Angiosperms are distinguished by having their seeds enclosed within a:
A. Naked ovule
B. Cone
C. Sporangium
D. Fruit (developed from the ovary) ✓ Correct
Solution: In angiosperms (flowering plants) ovules are enclosed in an ovary that ripens into a fruit.
Q2 — Angiosperms · easy · theory
The two classes of angiosperms are:
A. Cycadopsida and Coniferopsida
B. Dicotyledons and Monocotyledons ✓ Correct
C. Bryopsida and Anthocerotopsida
D. Chlorophyceae and Rhodophyceae
Solution: Angiosperms are divided into dicots (two cotyledons) and monocots (one cotyledon).
Q3 — Angiosperms · medium · theory
Double fertilisation, unique to angiosperms, results in the formation of a diploid zygote AND a:
A. Second zygote
B. Diploid endosperm
C. Haploid endosperm
D. Triploid primary endosperm nucleus (PEN) ✓ Correct
Solution: One male gamete fuses with the egg (2n zygote); the other fuses with two polar nuclei forming the triploid PEN — double fertilisation.
Q4 — Angiosperms · medium · theory
The male gametophyte of an angiosperm is the:
A. Pollen grain (germinated pollen tube with two male gametes) ✓ Correct
B. Embryo sac
C. Nucellus
D. Prothallus
Solution: The pollen grain is the highly reduced male gametophyte; the embryo sac is the female gametophyte.
Q5 — Angiosperms · hard · theory
The typical angiosperm female gametophyte (embryo sac) is 7-celled and 8-nucleate, comprising:
A. Four megaspores
B. Only an egg and two synergids
C. Egg apparatus (3), central cell (2 polar nuclei), antipodals (3) ✓ Correct
D. Egg apparatus (5), antipodals (3)
Solution: A mature embryo sac has 3 cells of the egg apparatus, 3 antipodal cells and one central cell with two polar nuclei — 7 cells, 8 nuclei.
Q6 — Angiosperms · hard · theory
Which set of features distinguishes MONOCOTS from DICOTS?
A. Parallel venation, fibrous roots, trimerous flowers, scattered vascular bundles ✓ Correct
B. Reticulate venation, fibrous root
C. Parallel venation, tap root
D. Reticulate venation, tap root, pentamerous flowers
Solution: Monocots: one cotyledon, parallel venation, fibrous roots, trimerous flowers, scattered (closed) vascular bundles.
Q7 — Angiosperms · easy · numerical
The smallest flowering plant (angiosperm) is:
A. Wolffia ✓ Correct
B. Rafflesia
C. Sequoia
D. Eucalyptus
Solution: Wolffia is the smallest angiosperm; Rafflesia only bears the largest flower, while Sequoia and Eucalyptus are among the tallest plants.
Q8 — Angiosperms · easy · numerical
Triple fusion in angiosperms involves the fusion of one male gamete with:
A. The antipodal cells
B. The two polar nuclei of the central cell ✓ Correct
C. The egg cell
D. A single synergid
Solution: In triple fusion the second male gamete fuses with the two polar nuclei of the central cell, giving the triploid primary endosperm nucleus.
Q9 — Angiosperms · easy · numerical
The usually triploid nutritive tissue that nourishes the developing embryo in angiosperms is the:
A. Perisperm
B. Nucellus
C. Cotyledon
D. Endosperm ✓ Correct
Solution: The triploid endosperm, formed after triple fusion, provides nutrition to the developing embryo in angiosperm seeds.
Q10 — Angiosperms · medium · numerical
Assertion (A): Angiosperms lack archegonia. Reason (R): Their female gametophyte (embryo sac) is extremely reduced and develops within the ovule.
A. Both A and R are true but R is not the correct explanation of A
B. Both A and R are true and R is the correct explanation of A ✓ Correct
C. A is true but R is false
D. A is false but R is true
Solution: The angiosperm female gametophyte is reduced to a few-celled embryo sac with no archegonia, unlike gymnosperms, so R correctly explains A.
Q11 — Angiosperms · medium · numerical
Which statement about the endosperm of angiosperm seeds is correct?
A. In non-endospermic seeds such as pea and bean, the endosperm is used up during embryo development ✓ Correct
B. Cereal grains completely lack endosperm
C. The endosperm of angiosperms is haploid
D. Perisperm is the main food-storing tissue of all dicots
Solution: In non-endospermic (ex-albuminous) seeds like pea and bean, the endosperm is consumed as the embryo develops; cereals are endospermic and the endosperm is triploid.
Q12 — Angiosperms · medium · numerical
During double fertilisation in an angiosperm, the two male gametes released by the pollen tube:
A. One fuses with a synergid and the other with the egg
B. Both fuse with the egg cell
C. One fuses with the egg (syngamy) and the other with the two polar nuclei (triple fusion) ✓ Correct
D. Both fuse with the polar nuclei
Solution: One male gamete fuses with the egg to form the zygote (syngamy) while the second fuses with the two polar nuclei (triple fusion) to form the endosperm.
Q13 — Angiosperms · medium · numerical
Assertion (A): Double fertilisation is a characteristic feature of angiosperms. Reason (R): It involves syngamy followed by triple fusion.
A. A is false but R is true
B. A is true but R is false
C. Both A and R are true but R is not the correct explanation of A
D. Both A and R are true and R is the correct explanation of A ✓ Correct
Solution: Double fertilisation, unique to angiosperms, consists of syngamy (forming the zygote) and triple fusion (forming the endosperm), so R correctly explains A.
Q14 — Angiosperms · medium · numerical
Which of the following correctly distinguishes angiosperms from gymnosperms?
A. Both groups form a triploid endosperm after fertilisation
B. In angiosperms the endosperm is haploid and formed before fertilisation, whereas in gymnosperms it is triploid and formed after fertilisation
C. Both groups form the endosperm before fertilisation
D. In angiosperms the endosperm is triploid and formed after fertilisation, whereas in gymnosperms it is haploid and formed before fertilisation ✓ Correct
Solution: The angiosperm endosperm is triploid and develops only after triple fusion, while the gymnosperm food tissue is the haploid female gametophyte formed before fertilisation.
Q15 — Angiosperms · medium
Assertion (A): Angiosperms are the most highly evolved group in the plant kingdom. Reason (R): In angiosperms, seeds are enclosed within fruits and show double fertilisation.
A. A is false, but R is true.
B. Both Assertion (A) and Reason (R) are true, and R is the correct explanation of A. ✓ Correct
C. Both A and R are true, but R is not the correct explanation of A.
D. A is true, but R is false.
Solution: Both statements are true and features like enclosed seeds and double fertilisation are exactly what make angiosperms the most highly evolved plants, so R correctly explains A.
Q16 — Angiosperms · medium
Assertion (A): Flowers are the reproductive structures in angiosperms. Reason (R): Flowers bear microsporangia and megasporangia on stamens and carpels respectively.
A. Both A and R are true, but R is not the correct explanation of A.
B. A is true, but R is false.
C. A is false, but R is true.
D. Both Assertion (A) and Reason (R) are true, and R is the correct explanation of A. ✓ Correct
Solution: Both statements are true and the presence of microsporangia and megasporangia on stamens and carpels is exactly why flowers are the reproductive structures, so R correctly explains A.
Q17 — Angiosperms · medium
Assertion (A): Double fertilisation is a hallmark of angiosperms. Reason (R): One male gamete fuses with the egg to form a zygote and the other fuses with the polar nuclei to form the primary endosperm nucleus.
A. A is false, but R is true.
B. Both Assertion (A) and Reason (R) are true, and R is the correct explanation of A. ✓ Correct
C. A is true, but R is false.
D. Both A and R are true, but R is not the correct explanation of A.
Solution: Both statements are true and the two fusion events described in R are precisely what constitute double fertilisation, so R correctly explains A.
Q18 — Angiosperms · medium
Assertion (A): In angiosperms, the pollen tube delivers two male gametes into the embryo sac. Reason (R): The pollen tube enters the embryo sac only through the chalazal end.
A. Both A and R are true, but R is not the correct explanation of A.
B. A is false, but R is true.
C. Both Assertion (A) and Reason (R) are true, and R is the correct explanation of A.
D. A is true, but R is false. ✓ Correct
Solution: The assertion is true because the pollen tube delivers two male gametes, but the reason is false since the pollen tube most commonly enters the embryo sac through the micropylar end, not only the chalazal end.
Q19 — Angiosperms · medium
Assertion (A): The angiosperm sporophyte is dependent on the gametophyte for nutrition. Reason (R): In angiosperms, gametophytes are highly reduced and depend on the sporophyte.
A. Both Assertion (A) and Reason (R) are true, and R is the correct explanation of A.
B. A is true, but R is false.
C. Both A and R are true, but R is not the correct explanation of A.
D. A is false, but R is true. ✓ Correct
Solution: The assertion is false because the dominant angiosperm sporophyte is nutritionally independent, while the reason is true since the highly reduced gametophytes depend on the sporophyte.
Q20 — Angiosperms · medium
Statement I: Angiosperms are flowering plants that bear seeds enclosed in fruits. Statement II: In angiosperms, the ovules are enclosed within the ovary of the carpel.
A. Statement I is incorrect but Statement II is correct.
B. Statement I is correct but Statement II is incorrect.
C. Both Statement I and Statement II are incorrect.
D. Both Statement I and Statement II are correct. ✓ Correct
Solution: Both statements are correct as angiosperm seeds are enclosed in fruits and ovules are enclosed within the ovary of the carpel.
Q21 — Angiosperms · medium
Statement I: Monocots and dicots are major classes of angiosperms. Statement II: Monocots always have two cotyledons in their seeds.
A. Both Statement I and Statement II are incorrect.
B. Statement I is correct but Statement II is incorrect. ✓ Correct
C. Statement I is incorrect but Statement II is correct.
D. Both Statement I and Statement II are correct.
Solution: Statement I is correct, but Statement II is incorrect because monocots have a single cotyledon, not two.
Q22 — Angiosperms · medium
Statement I: In angiosperms, the sporophyte is completely dominant and independent. Statement II: In angiosperms, male and female gametophytes are highly reduced and dependent.
A. Both Statement I and Statement II are incorrect.
B. Statement I is incorrect but Statement II is correct.
C. Statement I is correct but Statement II is incorrect.
D. Both Statement I and Statement II are correct. ✓ Correct
Solution: Both statements are correct as the angiosperm sporophyte is dominant and the gametophytes are highly reduced and dependent.
Q23 — Angiosperms · medium
Statement I: In angiosperms, double fertilisation is a characteristic feature. Statement II: One male gamete fuses with the egg to form the zygote and the other fuses with the polar nuclei to form endosperm.
A. Both Statement I and Statement II are incorrect.
B. Both Statement I and Statement II are correct. ✓ Correct
C. Statement I is incorrect but Statement II is correct.
D. Statement I is correct but Statement II is incorrect.
Solution: Double fertilisation is characteristic of angiosperms, with one gamete forming the zygote and the other the endosperm, so both statements are correct.
Q24 — Angiosperms · hard
Statement I: In angiosperms, the endosperm is usually diploid. Statement II: Endosperm forms after the fusion of one male gamete with two polar nuclei.
A. Statement I is correct but Statement II is incorrect.
B. Both Statement I and Statement II are incorrect.
C. Statement I is incorrect but Statement II is correct. ✓ Correct
D. Both Statement I and Statement II are correct.
Solution: The endosperm is triploid (not diploid), so Statement I is incorrect, while Statement II correctly describes its formation from a male gamete and two polar nuclei.
Q25 — Angiosperms · hard
Statement I: In most angiosperms, the female gametophyte (embryo sac) is 7-celled and 8-nucleate. Statement II: The embryo sac develops from the megaspore through mitotic divisions.
A. Both Statement I and Statement II are correct. ✓ Correct
B. Statement I is incorrect but Statement II is correct.
C. Both Statement I and Statement II are incorrect.
D. Statement I is correct but Statement II is incorrect.
Solution: The embryo sac is typically 7-celled and 8-nucleate and develops from the megaspore by mitosis, so both statements are correct.
Q26 — Angiosperms · medium
Statement I: In angiosperms, seeds are always non-endospermic. Statement II: Some angiosperms (like pea and bean) store food in cotyledons instead of endosperm.
A. Statement I is incorrect but Statement II is correct. ✓ Correct
B. Statement I is correct but Statement II is incorrect.
C. Both Statement I and Statement II are incorrect.
D. Both Statement I and Statement II are correct.
Solution: Angiosperm seeds may be endospermic or non-endospermic, so Statement I is incorrect, while pea and bean storing food in cotyledons makes Statement II correct.