Sexual Reproduction In Flowering Plants

Question 1

LIFE SCIENCE & ENVIRONMENT

Question 2

F2. (c) Sexual Reproduction in Flowering plants

Question 3

does reproduction occur in flowering plants

Question 4

134

Question 5

Flower is sexual reproductive structure of plants

Answer 5

especially in angiosperms. It is modified

Question 6

reproductive shoot and helps in sexual reproduction of plants. It consists of thalamus on

Question 7

which four sets of floral whorls are arranged in orderly manner.

Question 8

on the floral axis is called Inflorescence or Anthotaxy.

Question 9

e Different parts of a typical flower :

Question 10

Androecium and Gynoecium that are successively arranged.

Question 11

A typical flower consists of a thalamus with four sets of floral leaves-Calyx

Answer 11

Corola

Question 12

Corolla

Question 13

rain etc.

Question 14

Calyx

Question 15

Epicalyx

Question 16

Anther

Question 17

grains.

Question 18

Filament-

Question 19

Single Stamen

Question 20

• Sepal

Question 21

Petal

Question 22

The arrangement of

Question 23

B

Question 24

Corolla

Question 25

Stamens

Question 26

Thalamus

Question 27

Fig. 2.34 : Different parts of a typical flower (Hibiscus rosasinensis).

Question 28

\ower

Question 29

Function-Petals protect the inner Androecium and Gynoecium.

Question 30

Stigma

Question 31

Style

Question 32

) Calyx : It is the outermost part of the flower and consists of some green leaf like

Question 33

structures known as sepals.

Question 34

Ovary

Question 35

Function-Sepals protect the inner parts of flower in bud condition from heat

Answer 35

cold.

Question 36

Calyx

Question 37

() Corolla : It is the second inner floral set

Answer 37

consisting of several leafy structures called

Question 38

petals. Generally they have bright colour or beautiful smell or both.

Question 39

(ii) Androecium : It is the third inner floral whorl consisting of a number of male

Question 40

reproductive organs known as stamens. Each stamen consists of a slender stalk called filament

Question 41

and a saclike structure at the top of the filament

Answer 41

known as anther (pollen sac). The pollen

Question 42

sac produces pollen grains that are commonly yellowish in colour.

Question 43

Eor reference only:

Question 44

Function–Anther of stamen produces male reproductive units of flower called poien

Question 45

CONTINUTY OF LIFF

Question 46

1. Thhe bright colour of

Question 47

ovary. Ovary contains one or more ovule and each ovule contains an egg cell.

Question 48

2. The white colour of

Question 49

(iv) Gynoecium or Pistil : It is the innermost whorl of the flower. It consists of one o

Question 50

Anthocyanin is waters

Question 51

3. Flower

Question 52

more female reproductive part known as carpel. Each carpel consists of a receptive terminal

Question 53

portion called stigma

Answer 53

a long slender stalk called style and a swollen basal portion called

Question 54

A The flower that c

Question 55

Gynoecium is called

Question 56

absent

Answer 56

it is calied

Question 57

5. In male flowers

Question 58

flowers

Answer 58

only Gyr

Question 59

Bisexual flowers

Question 60

dioecious (e.g.

Question 61

7. Beautiful smell

Question 62

8. Arrangement

Question 63

Access

Question 64

Essent

Question 65

6

Question 66

Function-

Question 67

fertilization

Question 68

A Polli

Question 69

The flovw

Question 70

the anther

Question 71

Definiti

Question 72

of carpel

Question 73

A Ty

Question 74

Pollir

Question 75

Allogam