Sexual Reproduction in Flowering Plants Test

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Sexual Reproduction in Flowering Plants Test - 24

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Weekly Quiz Competition

Question 1
1 / -0

There are two types of flowers in a plant namely

A
unisexual and tri-sexual flowers

B
unisexual and bi-sexual flowers

C
bisexual and tri-sexual flowers

D
unisexual and homosexual flowers
Question 2
1 / -0

A part of plant that keeps on growing over soil, making other small plants with penetrating roots in soil and growing of shoots towards light is known as

A
tuber

B
bud

C
runner

D
bulb
Question 3
1 / -0

Which of the following pairs of cells are diploid?

A
Female gametophyte and megaspore

B
Megaspore mother cell and megaspore

C
Nucellus and megaspore mother cell (MMC)

D
Nucellus and female gametophyte

E
#
Question 4
1 / -0

When seed is sown into soil, first thing which happens it

A
takes up water

B
takes up oxygen

C
bursts apart

D
splits into two parts
Question 5
1 / -0

Self-incompatibility is a device to prevent in-breeding. Which of the following situations takes place during self-incompatibility?

A
Unisexual flowers are produced

B
Pollen tube growth is inhibited

C
Dys synchronisation of pollen release and stigma receptivity occurs

D
Anther and stigma are placed at different positions

E
#
Question 6
1 / -0

First part which comes out of a seed is

A
radicle

B
plumule

C
stem

D
cotyledon
Question 7
1 / -0

Besides cellulose, the intine layer of pollen grains also contains

A
pectin

B
suberin

C
sporopollenin

D
lignin

E
#
Question 8
1 / -0

Which of the following walls of microsporangium has more than one nucleus per cell?

A
Epidermis

B
Endodermis

C
Middle layer

D
Tapetum

E
#
Question 9
1 / -0

Transfer of pollen grains from anther to stigma of same flower, or to stigma of another flower on same plant is known as

A
self reproduction

B
cross reproduction

C
self pollination

D
cross pollination
Question 10
1 / -0

Apomixis is a phenomenon found in some grasses. What happens during apomixis?

A
Occurrence of more than one embryo in a seed

B
Development of fruits without fertilisation

C
Development of seeds without fertilisation

D
Presence of large number of seeds in a fruit

E
#
Question 11
1 / -0

Flowers pollinated by means of insects, have

A
bright colored petals and attractive scent

B
dull colored petals and attractive scent

C
bright colored petals and bad smell

D
dull colored petals and bad smell
Question 12
1 / -0

The number of ovules in an ovary may be one or many. In which of the following plants a single ovule might be present in the ovary?

A
Paddy

B
Orchid

C
Water melon

D
Papaya

E
#
Question 13
1 / -0

Which of the following cells undergoes meiotic division?

a. Microspore mother cell
b. Megaspore mother cell
c. Sporogenous cells
d. Microspores

A
a, b and d

B
c and d

C
a and b

D
a, b and c

E
#
Question 14
1 / -0

Which of the following sentences about megasporogenesis is false?

A
Megaspores are produced due to a meiotic division.

B
Megaspore mother cell is differentiated from micropylar region.

C
Eight nucleate embryo sacs are produced from 4 mitotic divisions.

D
Only six of the eight nuclei are surrounded by cell walls in embryo sac.

E
#
Question 15
1 / -0

By which kind of pollination method can assured seeds be produced even in the absence of pollinators?

A
Cleistogamy

B
Geitonogamy

C
Xenogamy

D
Both by Cleistogamy and Geitonogamy

E
#
Question 16
1 / -0

Pollen grains consist of 2 cells, i.e vegetative and generative. Which of the following sentences is correct about the vegetative cell?

A
It is smaller than generative cell.

B
The cell floats in the cytoplasm of generative cell

C
It does not store food.

D
The nucleus is irregularly shaped.

E
#
Question 17
1 / -0

Intergeneric hybridization is a type of hybridization which involves crossing between two different genera of the same family. Which of the following sentence is false about intergeneric hybridization?

A
F1 hybrids are always sterile

B
Evolution of new crops is Impossible

C
It is rarely used

D
Triticale is an example of intergeneric hybridization

E
#
Question 18
1 / -0

As embryo grows, ovule turns into a

A
fruit

B
flower

C
seed

D
ovary
Question 19
1 / -0

Insects pollinated flowers face

A
upwards

B
downwards

C
left

D
right
Question 20
1 / -0

Perisperm is a residual nucellus, which persists in some seeds. In which of the following plants it is found?

A
Sunflower

B
Black pepper

C
Groundnut

D
Castor

E
#
Question 21
1 / -0

Stigma of wind pollinated flower is

A
sticky

B
feathery

C
plain

D
dry
Question 22
1 / -0

Which of the following is an aquatic plant that does not use water for pollination?

A
Vallisneria

B
Hydrilla

C
Water hyacinth

D
Zostera grass

E
#
Question 23
1 / -0

What is the ratio of antipodal cells: polar cell: synergids in embryo sac?

A
3 : 1 : 2

B
3 :2 : 3

C
3 : 2 : 2

D
2 : 1 : 2

E
#
Question 24
1 / -0

What is common between wheat, maize and sunflower seeds?

A
They all are monocotyledonous seeds.

B
They all possess non-albuminous seeds.

C
They all are albuminous seeds.

D
They all contain remnant of nucellus.

E
#
Question 25
1 / -0

Male reproductive part of a flower contains two round shaped structures at their tip. These structures are known as

A
anthers

B
filaments

C
stamens

D
carpels

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Sexual Reproduction in Flowering Plants Test - 24

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Sexual Reproduction in Flowering Plants Test - 24

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SHARING IS CARING

Question 1

unisexual and tri-sexual flowers

unisexual and bi-sexual flowers

bisexual and tri-sexual flowers

unisexual and homosexual flowers

Question 2

tuber

bud

runner

bulb

Question 3

Female gametophyte and megaspore

Megaspore mother cell and megaspore

Nucellus and megaspore mother cell (MMC)

Nucellus and female gametophyte

#

Question 4

takes up water

takes up oxygen

bursts apart

splits into two parts

Question 5

Unisexual flowers are produced

Pollen tube growth is inhibited

Dys synchronisation of pollen release and stigma receptivity occurs

Anther and stigma are placed at different positions

#

Question 6

radicle

plumule

stem

cotyledon

Question 7

pectin

suberin

sporopollenin

lignin

#

Question 8

Epidermis

Endodermis

Middle layer

Tapetum

#

Question 9

self reproduction

cross reproduction

self pollination

cross pollination

Question 10

Occurrence of more than one embryo in a seed

Development of fruits without fertilisation

Development of seeds without fertilisation

Presence of large number of seeds in a fruit

#

Question 11

bright colored petals and attractive scent

dull colored petals and attractive scent

bright colored petals and bad smell

dull colored petals and bad smell

Question 12

Paddy

Orchid

Water melon

Papaya

#

Question 13

a, b and d

c and d

a and b

a, b and c

#