Sexual Reproduction In Flowering Plants

Question 1

The long and slender stock called

Answer 1

Filament

Question 2

The terminally generally bilobed structure called

Answer 2

Anther

Question 3

The proximal end of the filament is attached to the

Answer 3

Thalamus or the petal of the flower

Question 4

A typical angiosperm answer is

Answer 4

Bilobed with each lobe, having too Theca

Question 5

How many sides are there in an anther

Answer 5

Four sides, tetragonal

Question 6

How are these two theca are separated?

Answer 6

By longitudinal groove

Question 7

How many microsporangia are there in an anther ?

Answer 7

4

Question 8

These microsporangia developed into

Answer 8

Pollen sacs

Question 9

What are the four walls of an microsporangium?

Answer 9

Epidermis endothecium , middle layer, Tapetum

Question 10

The outer three layers of the microsporangium helps in

Answer 10

Dehiscence and protection

Question 11

Which layer provides the nourishment to the pollen grains?

Answer 11

Tapetum

Question 12

The dense cytoplasm of tapetum contains more than one

Answer 12

Nucleus

Question 13

When an anther is Young, a group of compact cells are called

Answer 13

Sporogenous tissue

Question 14

Some of the sporogenous tissue are capable to go under meiotic division are called

Answer 14

Pollen Mother cell diploid

Question 15

After the meiosis of pollen Mother cell, how many cell will form?

Answer 15

There will be four cell, which will be call micropore tetrad

Question 16

What is the ploidy level of microspore tetra?

Answer 16

Haploid

Question 17

The formation of micropore through pollen mother cells

Answer 17

Micro sporogenesis

Question 18

60% angiosperm does their 2nd mitosis

Answer 18

After pollination

Question 19

What is the diameter of pollen grain?

Answer 19

25 to 50 micrometer

Question 20

The outer layer of an pollen grain is made up of what?

Answer 20

Sporopolleninn

Question 21

Wherever The sporopollenin is absent

Answer 21

There is germ pore

Question 22

The inner most layer of an pollen grain is made up of

Answer 22

Cellulose
and pectin

Question 23

The pollen viability of some cereals or rice and wheat

Answer 23

30 minutes

Question 24

The member of rosacea leguminoseam and solanaceae

Answer 24

Months

Question 25

Where to Store pollen grains grains for years

Answer 25

Liquid nitrogen in -1 96°C

Question 26

How does Ovule attach? In ovary

Answer 26

Through placenta

Question 27

One Ovule examples

Answer 27

Wheat paddy Mango

Question 28

Many ovules examples

Answer 28

Papaya, watermelon orchid

Question 29

In an multicarpellary the fused ones are called and the example

Answer 29

Syncarpous papver

Question 30

If the multicarpellary is free then it is called and the example

Answer 30

Apocarpous micheliea

Question 31

Ovule is small structure attached to placenta by means of

Answer 31

Funicle

Question 32

The point of attachment of funicle and ovule

Answer 32

Hilum

Question 33

Each ovule i has one or two protective envelope

Answer 33

Integuments

Question 34

Enclosed within integuments mass of cell is called

Answer 34

Nucellus abundant food reserve

Question 35

Integuments enCircle, nucellus , except at tip, small opening is called

Answer 35

Micropyle

Question 36

The opposite of micropylar end is called

Answer 36

Chalazal end

Question 37

Single functional megaspore goes into how many mitosis

Answer 37

3

Question 38

How many nucleus will be there in single megaspore after 3mitosis

Answer 38

8 nucleus

Question 39

A typical angiospermic embryo sack has

Answer 39

7celled and 8nucleated

Question 40

The transfer of pollen grain from same flower anther to stigma

Answer 40

Autogamy

Question 41

Example of the flowers, which shows autogamy

Answer 41

Voila oxalis commelina

Question 42

Transfer of pollen grain from anther to stigma to another flower of the same plant

Answer 42

Geitonogamy genetically similar to autogamy

Question 43

Water pollination is limited to how many genera monocotyledons

Answer 43

30

Question 44

Examples of water pollination in fresh water and marine water

Answer 44

Vallisneria hydrilla fresh water Zoestra marine sea grass

Question 45

Which flower emerges above water level

Answer 45

Water Lilly

Question 46

Special floral reward safe place to lay egg name the flower

Answer 46

Amorphophallus

Question 47

2 polar nuclei and male gamete forms

Answer 47

Primary endosperm cell

Question 48

Endosperm ploidy level

Answer 48

3n

Question 49

Who develops first zygote or endosperm

Answer 49

Endosperm

Question 50

Coconut water is ?

Answer 50

Free nuclear endosperm

Question 51

The edible part of coconut is

Answer 51

Cellular endosperm

Question 52

Zygote gives rise to which form

Answer 52

Pro-embryo globular heart and then mature embryo

Question 53

The cylindrical portion of below level of cotyledons

Answer 53

Hypcotyl

Question 54

In grass family the cotyledon is called

Answer 54

Scutellum

Question 55

In monocot embryo radicle and root tip is covered by undifferentiated sheath called

Answer 55

Coleorhiza

Question 56

A typical seed consist of

Answer 56

Seed coat cotyledon and an embryo axis

Question 57

No residue endosperm seeds r called

Answer 57

Non albuminous pea bean groundnut

Question 58

In some seeds some nucellus is remained

Answer 58

Perisperm black pepper beet

Question 59

Which forms the harden as tough protective seed coat

Answer 59

Integuments

Question 60

The wall of ovary develops into walls of fruit called

Answer 60

Pericarp

Question 61

True fruit example

Answer 61

Mango

Question 62

Thalamus contributes in fruit formation Pray tell, what kind of fruit it is called

Answer 62

False fruits

Question 63

Fruits develop without fertilisation is called

Answer 63

Parthenocarpic fruits

Question 64

It is a type of asexual reproduction, which mimic sexual reproduction seeds are produced without fertilisation

Answer 64

Apomixis

Question 65

What is seed dormancy? Give an example.

Answer 65

A condition where seeds do not germinate despite favorable conditions. Example: Tomato, Pea, Wheat