Sexual Reproduction in Flowering Plants Class 10. We covered all the Sexual Reproduction in Flowering Plants Class 10 MCQs in this post for free so that you can practice well for the exam.
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MCQ on Sexual Reproduction in Flowering Plants for NEET Students
Read the given statements and select the correct option. Statement I: 60% of angiosperms shed their pollen grains at the 3-celled stage. Statement II: In 40% of angiosperms, the generative cell divides mitotically to give rise to the two male gametes before pollen grains are shed, thus pollen grains are shed at 3 celled stage.
(A) Statement I is correct, while statement II is incorrect
(B) Statement II is correct, while statement I is incorrect
(C) Both statements I and II are correct
(D) Both statements I and II are incorrect
Option b – Statement II is correct, while statement I is incorrect
In which of the following type of pollination are transferred from the anther to the pollen grains stigma of another flower of the same plant?
(A) Autogamy
(B) Xenogamy
(C) Geitonogamy
(D) Cleistogamy
Option c – Geitonogamy
Which of the following gives the correct order of stages of embryogeny in a dicotyledonous embryo?
(A) zygote → proembryo → globular embryo → heart-shaped embryo →mature embryo
(B) PEN→ globular embryo → proembryo → horse-shoe-shaped embryo mature embryo
(C) zygote globular embryo →heart-shaped embryo→ proembryo-mature embryo
(D) embryo → proembryo → horse-shoe shaped embryo →→mature embryo
Option a – zygote → proembryo → globular embryo → heart-shaped embryo →mature embryo
Which of the following statement is NOT TRUE with respect to the generative cell of pollen grain?
(A) It is small and floats in the cytoplasm of the vegetative cells.
(B) It is spindle-shaped.
(C) It contains dense cytoplasm.
(D) It is devoid of a nucleus.
Option d – It is devoid of a nucleus.
If in a dithecous anther, each pollen sac contains 200 microspore mother cells. What will be the total number of pollen grains produced by the anther?
(A) 16,000
(B) 3200
(C) 24,000
(D) 8,000
Option b – 3200
Select the INCORRECT pair from the following.
(A) Funicle – Stalk of an ovule
(B) Integuments – Protective envelopes of ovule
(C) Chalaza – Small opening of the ovule where – integuments are absent
(D) Hilum – The region where the body of the ovule fuses with funicle
Option c – Chalaza – Small opening of the ovule where – integuments are absent
All the given below are part of an egg apparatus in an embryo sac, except
(A) egg cell
(B) secondary nuclei
(C) synergids
(D) filiform apparatus
Option b – secondary nuclei
Read the given statements and select the correct option. Statement I: Geitonogamy is functionally cross-pollination involving a pollinating agent. Statement II: Geitonogamy is genetically similar to autogamy as pollen grains come from the same plant.
(A) Statement I is correct, while statement II is incorrect
(B) Statement II is correct, while statement I is incorrect
(C) Both statements I and II are correct
(D) Both statements I and II are incorrect
Option c – Both statements I and II are correct
…….. is the part of megasporangium which have abundant reserve food material.
(A) Nucellus
(B) Micropyle
(C) Egg apparatus
(D) Funicle
Option a – Nucellus
Select the INCORRECT statement with respect to cleistogamous flowers.
(A) These flowers open only during the night.
(B) These flowers are invariably autogamous.
(C) These flowers do not open at all.
(D) These flowers produce an assured seed set.
Option a – These flowers open only during the night.
Pollen grains are well preserved as fossils because i. exine is made up of sporopollenin. ii. Sporopollenin can withstand high temperatures, strong acids, and alkalies. iii. exine has prominent apertures called germ pores.
(A) both i and iii
(B) Only I
(C) both i and ii
(D) all of these
Option c – both i and ii
In which of the following the number of ovules in an ovary is more than one?
(A) Watermelon
(B) Rice
(C) Wheat
(D) Mango
Option a – Watermelon
In an anatropous ovule, the body of an ovule fuses with a funicle in the region called
(A) micropyle
(B) hilum
(C) style
(D) nucellus
Option b – hilum
Which of the following statement is NOT true with respect to parthenocarpic fruits?
(A) These fruits are formed without fertilization.
(B) These fruits are generally seedless.
(C) These fruits develop from any part of a flower other than the ovary.
(D) Banana is an example of natural parthenocarpic fruit.
Option c – These fruits develop from any part of a flower other than the ovary.
Which of the following is TRUE with respect to geitonogamy?
(A) It is the transfer of pollen grains from the anther to the stigma of another flower of the same plant.
(B) It is the transfer of pollen grains from the anther to the stigma of a flower which does not open at all.
(C) It is the transfer of pollen grains from the anther to the stigma of a flower produced on different plants belonging to the same species.
(D) It is the transfer of pollen grains from the anther to the stigma of the same flower.
Option a – It is the transfer of pollen grains from the anther to the stigma of another flower of the same plant.
Select the INCORRECT statement with respect to the structure of microsporangium.
(A) Endothecium is the innermost wall layer of microsporangium.
(B) Tapetum nourishes the developing pollen grains.
(C) In young anther, sporogenous tissue is diploid.
(D) The outer three wall layers of microsporangium help in the dehiscence of the anther.
Option a – Endothecium is the innermost wall layer of microsporangium.
Select the CORRECT statement with respect to megasporogenesis from the following.
(A) It results in information on numerous megaspores from a megaspore mother cell.
(B) During this process, MMC undergoes mitosis to form 4 functional megaspores.
(C) All the megaspores formed from a single MMC take part in the formation of the embryo sac.
(D) Meiotic division of a single MMC results in the formation of 4 haploid megaspores.
Option d – Meiotic division of a single MMC results in the formation of 4 haploid megaspores.
A typical angiosperm anther is
(A) bilobed and monothecous
(B) bilobed and dithecous
(C) monolobed and tetrathecous
(D) monolobed and dithecous
Option b – bilobed and dithecous
Select the INCORRECT statement from the following.
(A) Stigma serves as a landing platform for pollen grains.
(B) Style is the elongated slender part beneath the stigma.
(C) Locule is the basal bulged part of the pistil
(D) The placenta is located inside the ovarian cavity.
Option c – Locule is the basal bulged part of the pistil
Filiform apparatus is the characteristic feature of
(A) antipodal cells
(B) synergids
(C) generative cell
(D) free nuclear endosperm
Option b – synergids
Which of the following is FALSE with respect to pollination in Vallisneria?
(A) Although it is an aquatic plant, pollination occurs with the help of insects.
(B) Pollen grains are released onto the surface of the water.
(C) The female flower reaches the water’s surface with the help of a long stalk.
(D) Pollen grains are carried passively to the stigma with the help of water currents.
Option a – Although it is an aquatic plant, pollination occurs with the help of insects.
We covered all the sexual reproduction in flowering plants class 10 above in this post for free so that you can practice well for the exam.
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