Morphology Of Flowering Plants Pt 2

Question 1

Name the 4 whorls of a flower

Answer 1

Calyx
Corolla
Androecium
Gynoecium

Question 2

Members of calyx are

Answer 2

Sepals

Question 3

Describe sepals

Answer 3

Green , leaf like

Question 4

Function of sepals

Answer 4

Protect the flower in bud stage

Question 5

Two types of sepals are :

Answer 5

Polysepalous (free sepals)
Gamosepalous (fused sepals)

Question 6

Members of corolla

Answer 6

Petals

Question 7

Petals are usually …….. coloured to attract insects for ……….

Answer 7

Bright
Pollination

Question 8

Different shapes ( arrangements ) of corolla

Answer 8

Bell shaped, tubular , wheeled shaped and funnel shaped

Question 9

Corolla types

Answer 9

Gamopetalous (fused)
Polypetalous ( free)

Question 10

What is aestivation

Answer 10

Mode of arrangement of petals or sepals in floral bud wrt to other members of the same whorl

Question 11

Valvate aestivation examples

Answer 11

Calotropis

Question 12

Twisted aestivation examples

Answer 12

China rose , cotton and lady finger

Question 13

Imbricate aestivation

Answer 13

Cassia and Gulmohar

Question 14

Vexiallry aestivation examples

Answer 14

Pea and bean

Question 15

Vexillary aestivation other name

Answer 15

Papilionaceous

Question 16

In pea and bean flowers there are ….. petals. The largest petal …….. be overlaps the two lateral petals ……. which intern overlap the two smallest anterior petals ……

Answer 16

Five
Standard
Wings
keel

Question 17

Androecium is composed of?

Answer 17

Stamens

Question 18

Parts of a stamen

Answer 18

Stalk or filament
And
Anther

Question 19

An answer is usually ……. and each lobe has two chambers the ……… The pollen grains are produced in ……..

Answer 19

Bilobed
Pollen sacs
Pollen sacs

Question 20

A sterile stamen is called?

Answer 20

Staminode

Question 21

When stamens are attached to petals , called?

Answer 21

epipetalous

Question 22

When stamens are attached to perianth , called?

Answer 22

Epiphyllous

Question 23

Examples:

Epipetalous-
Epiphyllous-

Answer 23

Bringal
Lily

Question 24

Free stamens are known as

Answer 24

Polyandrous

Question 25

Stamens united in - (Name with examples) 1) one bunch 2) two bundles 3) more than three bundles

Answer 25

monadelphous - china rose diadelphous - pea polydelphous - citrus

Question 26

There may be a variation in the length of filaments within a flower as in -

Answer 26

Salvia and mustard

Question 27

Gynoecium memeber

Answer 27

Carpel

Question 28

Three parts of ovary

Answer 28

Stigma Style Ovary

Question 29

Ovules are attached to what in an ovary

Answer 29

Placenta

Question 30

Types of carpel with example

Answer 30

Apocarpous - free carpels - lotus and rose Syncarpous - fused - mustard and tomato

Question 31

After fertilisation , ovules develop into …… and ovary into ……..

Answer 31

Seeds Fruit

Question 32

What is placentation

Answer 32

Arrangement of ovules within the ovary

Question 33

Marginal placentation, example-

Answer 33

Ovules attached to the margin of the ovary Pea

Question 34

In marginal placentation the placenta forms a ridge along the ……….. of the ovary and ovules are borne on this ridge in …….. rows

Answer 34

ventral suture Two

Question 35

Axile placentation ex-

Answer 35

Tomato Lemon China rose

Question 36

Parietal placentation ex

Answer 36

Mustard and argemone

Question 37

In ………. placentation , the ovary is one chambered but becomes two chambered ( bilocular ) due to formation if a false ……..

Answer 37

Parietal Septum

Question 38

Free central placentation ex

Answer 38

Dianthus and Primrose

Question 39

Axile vs Free central placentation

Answer 39

Both have ovules along the central axis but , in axile , septa are present whereas they are absent in free central

Question 40

What is the characteristic feature of a flowering plant

Answer 40

Fruit

Question 41

If a fruit is formed without fertilisation, it is called

Answer 41

Parthenocarpic fruit

Question 42

Generally, the fruit is divided into two main parts

Answer 42

Pericarp and seeds

Question 43

When the pericarp is thick and fleshy it is differentiated into

Answer 43

Epicarp Mesocarp Endocarp

Question 44

Examples of drupe fruit

Answer 44

Mango and coconut

Question 45

Drupe fruits are developed from

Answer 45

Monocarpellary superior ovary

Question 46

Coconut mesocarp - Mango mesocarp-

Answer 46

Fibrous Edible and fleshy

Question 47

Mango has ……… endocarp

Answer 47

Stony

Question 48

Outermost layer of the seed is called - It is divided into

Answer 48

Seed coat Testa and tegmen

Question 49

……… is this scar on the seed coat through which the developing seeds were attached to the fruit

Answer 49

Hilum

Question 50

Above the hilum is a small pore called

Answer 50

Micropyle

Question 51

The embryo consists of (Dicots)

Answer 51

The embryonal axis and two cotyledons

Question 52

Endosperm is formed as a result of ? Example

Answer 52

Double fertilisation castor

Question 53

Plants in which the mature seed does not have endosperm are called and examples

Answer 53

non-endospermous pea, bean , gram

Question 54

Generally monocot seeds are ……… , but some aren’t like -

Answer 54

endospermic Orchids

Question 55

In maize seed, the plumule is ……….. and the radicle is ……….. ( enclosed by )

Answer 55

Coleoptile Coleorhiza

Question 56

In monocot ( maize ) the embryo consists of -

Answer 56

A short axis with a plumule and a radicle And one cotyledon

Question 57

Majority of the area of the seed is taken by ……….. in maize seed

Answer 57

Endosperm

Question 58

The cotyledon is …….. shaped and is called ? ( maize)

Answer 58

Shield Scutellum

Question 59

The embryo and the endosperm is separated by ?

Answer 59

The outer protein rich covering of the endosperm called aleurone layer

Question 60

In monocots , the seed coat is generally ……… and …….. with the ………

Answer 60

Membranous Fused Fruit wall

Question 61

Fruit with liquid endosperm

Answer 61

Coconut