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Reproduction in Angiosperms Quiz

Assess your understanding of angiospermic embryo sacs, filiform apparatus, Polygonum type, and specialized reproductive strategies like apomixis and dioecy ensuring xenogamy.

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1: Q1: The function of filiform apparatus in an angiospermic embryo sac is

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to bring about opening of the pollen tube

to guide the pollen tube into a synergid

C: to prevent entry of more than one pollen tube into a synergid

D: to provide nutrition to the egg

2: Polygonum type of embryo sac is

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8-nucleate 7-celled

8-nucleate 8-celled

7-nucleate 7-celled

4-nucleate 3-celled

3: Even in absence of pollinating agents seed-setting is assured in ________ .

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Commelina

Zostera

Salvia

Bombax

4: Male and female flowers are present on different plants (dioecious) to ensure xenogamy in ________ .

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Papaya

Bottle gourd

Maize

Apple

5: Spiny or sticky pollen grains and large attractively coloured flowers are associated with

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hydrophily

entomophily

ornithophily

anemophily

6: The outermost and innermost wall layers of anther are respectively ________.

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endothecium and tapetum

epidermis and endodermis

epidermis and middle layer

epidermis and tapetum

7: The ploidy level is NOT the same in ________.

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Integuments and nucellus

Root tip and shoot tip

Secondary nucleus and endosperm

Antipodals and synergids

8: Feathery stigma occurs in ________.

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Pea

Wheat

Datura

Caesalpinia

9: Which of the following is a post-fertilization event in flowering plants?

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Transfer of pollen grains

Embryo development

Formation of flower

Formation of pollen grains

10: 'Clones' are individuals that have exactly the same:

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Lifespan

Physiology

Growth rate

Genetic makeup

11: Which of the following is not used for vegetative propagation?

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Bud

Bulbil

Scion

Antherozoid

12: In which of the following pair of plants both the plants can be vegetatively propagated by leaf pieces?

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Bryophyllum and Kalanchoe

Potato and Dahlia

Sweet potato and Bryophyllum

Kalanchoe and Asparagus

13: During microsporogenesis meiosis occurs in:

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endothecium

microspore mother cells

microspore tetrads

pollen grains

14: The pollen sacs represent:

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microsporangia

male gametophyte

male gametes

microsporophylls

15: The anther wall consists of four wall layers where

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tapetum lies just inner to endothecium

middle layers lie between endothecium and tapetum

endothecium lies inner to middle layers

tapetum lies next to epidermis

16: The innermost layer of anther is tapetum whose function is:

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dehiscence

reproduction

nutrition

protection

17: Pollen grain is a _______

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megaspore

microspore

microsporophyll

microsporangium

18: How many pollen mother cells should undergo meiotic division to produce 64 pollen grains ?

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64

32

16

8

19: The most resistant biological material present in the exine of pollen grain is

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pectocellulose

sporopollenin

suberin

cellulose

20: The three cells in the male gametophyte of an angiospermic plant are:

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1 vegetative cell 1 generative cell 1 male gamete

1 vegetative cell 2 male gametes

1 generative cell 2 male gametes

either a or b

21: Part of the gynoecium which receives the pollen grains is called

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style

stigma

ovule

ovary

22: When the pollen of a flower is transferred to the stigma of another flower on the same plant the process is known as:

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autogamy

xenogamy

geitonogamy

cleistogamy

23: In a fertilized embryo sac the haploid diploid and triploid structures are:

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Synergid zygote and primary endosperm nucleus

Synergid antipodal and polar nuclei

Antipodal synergid and primary endosperm nucleus

Synergid polar nuclei and zygote

24: Which of the following floral parts form the pericarp after fertilization?

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