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12th Biology Week Test - 4 ( Botany - Asexual and Sexual Reproduction in Plants )

St. Britto Hr. Sec. School - Madurai

12th Biology Week Test - 4 ( Botany - Asexual and Sexual Reproduction in Plants )-Aug 2020

Time : 1.00 Hours

Part - A

Multiple Choice Question - Answer All Question

Choose the correct statement from the following

Gametes are involved in asexual reproduction
Bacteria reproduce asexually by budding
Conidia formation is a method of sexual reproduction
Yeast reproduce by budding

Choose the correct statements from the following.

Gametes are involved in asexual reproduction.
Bacteria reproduce asexually by budding.
Conidia formation is a method of sexual reproduction.
Yeast reproduce by budding.

Parthenocarpic fruits lack

Endocarp
Epicarp
Mesocarp
seed

Assertion : Sporopollenin preserves pollen in fossil deposits.

Reason : Sporopollenin is resistant to physical and biological decomposition.

assertion is true; reason is false
assertion is false; reason is true
Both assertion and reason are not true
Both assertion and reason are true

Arrange the layers of anther wall from locus to periphery

Epidermis,middle layers, tapetum, endothecium
Tapetum, middle layers, epidermis, endothecium
Endothecium, epidermis, middle layers, tapetum
Tapetum, middle layers endothecium epidermis

Parthenocarpic fruits lack

Endocarp
Epicarp
Mesocarp
Seed

Size of pollen grain in Myosotis

10 micrometer
20 micrometer
200 micrometer
2000 micrometer

Pollen tube was discovered by

J.G.Kolreuter
G.B.Amici
E.Strasburger
E.Hanning

Tunicated bulb is seen is ___________

Scilla
Solanum
Allium
Zingiber

Identify the correctly matched pair

Tuber - Allium Cepa
Sucker - Pistia
Rhizome - Musa
Stolon - Zingiber

First cell of male gametophyte in angiosperm is

Microspore
megaspore
Nucleus
Primary Endosperm Nucleus

Identify the correctly matched pair

Tuber - Allium cepa
Sucker - Pistia
Rhizome - Musa
Stolon - Zingiber

A plant called X possesses small flower with reduced perianth and versatile anther. The probable agent for pollination would be

water
air
butterflies
beetles

A Plant called X possesses small flower with reduced perianth and versatile anther. The probable agent for pollination would be

water
air
butterflies
beetles

Piston mechanism of pollination is found in ____________

Aristolochia
Arum
Asclepiadaceae
Papilionaceae

Match the following

I. External Fertilization - (i) Pollen grain

II. Androecium - (ii) anther wall

III. Male gametophyte -(iii) algae

IV. Primary parietal layer- (iv) Stamens

I-iv II-i III-ii IV-iii
I-iii II-iv III-i IV-ii
I-iii II-iv III-ii IV-i
I-iii II-i III-iv IV-ii

Pollination by an ant is called ___________

Malacophily
Entomophily
Myrmecophily
Chiropterophily.

__________ is an example for sucker.

Dioscorea
Chrysanthemum
Bryophyllum
Murraya

Which of the following represent megagametophyte

Ovule
Embryo sac
Nucellus
Endosperm

An eminent Indian embryologist is

S.R.Kashyap
P.Maheswari
M.S. Swaminathan
K.C.Mehta

Transmitting tissue is found in

Micropylar region of ovule
Pollen tube wall
Stylar region of gynoecium
Integument

Apospory is seen in ___________

Citrus
Aerva
Parthenium
Eupatorium

Pollen deposits on another flower of same individual plant is called ___________

Geitonogamy
Xenogamy
Homogamy
Cleistogamy

Hollow style is also called as _________

closed style
solid style
open style
semi-solid style

Find out the character which is not suitable for anemophilous plants ____________

Spike infloresence
Perianth is absent
Flowers are small
Scented flowers

An example of protandry is __________

Helianthus and Borassus
Helianthus and Clerodendron
Scrophularia and Aristolochia
Scrophularia and Aristolochia

Assertion : Sporopollenin preserves pollen in fossil deposits
Reason : Sporopollenin is resistant to physical and biological decomposition

assertion is true; reason is false
assertion is false; reason is true
Both Assertion and reason are not true
Both Assertion and reason are true.

Sexual reproduction of higher plants include _________ stages.

2
4
3
5

Who discovered the pollen tube?

G. B. Amici
E. Strasburger
Hanstein
D. A. Johansen

PEN is referred as _____________.

Primary Endo Nutritive tissue.
Primary Endosperm Nucleus.
Primary Entry of Nucleus.
Post Entry of Nucleus.

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