Sexual Reproduction In Plants

Question 1

Where does fertilization take place?

Answer 1

Ovary

Question 2

By which mean do ovules are attached to ovary?

Answer 2

Funicles

Question 3

Body of the ovule is called

Answer 3

Nucellus

Question 4

Nucellus is covered with layers of

Answer 4

Interguments

Question 5

A pore which is left uncovered at the tip of ovary

Answer 5

Micropyle

Question 6

Embryo sac is a large ____ sac.

Answer 6

Oval-shaped

Question 7

In embryo sac there are ____ nuclei.

Answer 7

8

Question 8

The biggest nuclei

Answer 8

The egg cell (or) the female gamete

Question 9

Synergids are situated on _____.

Answer 9

Micropylar end

Question 10

Nuclei on the opposite side of micropylar end

Answer 10

Antipodean cells

Question 11

Nuclei at the centre of embryo sac

Answer 11

(two) polar nuclei

Question 12

____ are carried within flowers

Answer 12

Sex organs

Question 13

Sex cell is called

Answer 13

Gamete

Question 14

Male gamete is formed inside the ___.

Answer 14

Pollen

Question 15

Pollen has only one ____.

Answer 15

Nucleus (uninsulate)

Question 16

The inner wall of pollen grain

Answer 16

Intine

Question 17

The outer wall of pollen grain

Answer 17

Exine

Question 18

___ is viscous at the time of pollination

Answer 18

Stigma

Question 19

Exine is often provided with

Answer 19

Spinous outgrowth

Question 20

Weak spot are called

Answer 20

Germ pores

Question 21

Germ spore exists on ____.

Answer 21

Exine

Question 22

____ stimulates the pollen grain to germinate.

Answer 22

A sticky substance

Question 23

Nucellus of pollen divided into ___ and ____.

Answer 23

The tube nucleus / generative nucleus

Question 24

The pollen begins to elongate to form

Answer 24

A pollen tube

Question 25

On pollination, the generative nucleus is divided into ___.

Answer 25

Two male gametes

Question 26

The pollen tube enters the ovule through the ___.

Answer 26

Micropyle

Question 27

One male gamete fuses with the egg cell to form ___.

Answer 27

Fertilizated egg (or) oospore

Question 28

Fusion of male gamete and egg cell is called

Answer 28

Fertilization

Question 29

What do two polar nuclei fuse each other into?

Answer 29

Secondary nucleus

Question 30

What is formed after fusion of the two polar nuclei and the male gamete?

Answer 30

Primary endosperm nuclues

Question 31

Formation of primary endosperm nucleus is termed as

Answer 31

Triple fusion

Question 32

What does ferilization and triple fusion are known together as?

Answer 32

Double fertilization

Question 33

Cells that direct the male gamete during the process of fertilization

Answer 33

Synergids

Question 34

The nuclei that doesn't involve in the fertilization

Answer 34

Antipodal cell

Question 35

That part of the plant may fall off or persist util the formation of fruit

Answer 35

Sepals

Question 36

That part of plant develops into seeds

Answer 36

Ovules

Question 37

What is changed to form a fruit

Answer 37

Ovary

Question 38

What does an intergument become?

Answer 38

A seed coat