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Botany > Morphology Of Flowering Plants Pt 2 > Flashcards

Morphology Of Flowering Plants Pt 2 Flashcards

1
Q

Name the 4 whorls of a flower

A

Calyx
Corolla
Androecium
Gynoecium

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2
Q

Members of calyx are

A

Sepals

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3
Q

Describe sepals

A

Green , leaf like

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4
Q

Function of sepals

A

Protect the flower in bud stage

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5
Q

Two types of sepals are :

A

Polysepalous (free sepals)
Gamosepalous (fused sepals)

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6
Q

Members of corolla

A

Petals

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7
Q

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

A

Bright
Pollination

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8
Q

Different shapes ( arrangements ) of corolla

A

Bell shaped, tubular , wheeled shaped and funnel shaped

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9
Q

Corolla types

A

Gamopetalous (fused)
Polypetalous ( free)

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10
Q

What is aestivation

A

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

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11
Q

Valvate aestivation examples

A

Calotropis

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12
Q

Twisted aestivation examples

A

China rose , cotton and lady finger

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13
Q

Imbricate aestivation

A

Cassia and Gulmohar

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14
Q

Vexiallry aestivation examples

A

Pea and bean

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15
Q

Vexillary aestivation other name

A

Papilionaceous

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16
Q

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 ……

A

Five
Standard
Wings
keel

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17
Q

Androecium is composed of?

A

Stamens

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18
Q

Parts of a stamen

A

Stalk or filament
And
Anther

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19
Q

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

A

Bilobed
Pollen sacs
Pollen sacs

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20
Q

A sterile stamen is called?

A

Staminode

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21
Q

When stamens are attached to petals , called?

A

epipetalous

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22
Q

When stamens are attached to perianth , called?

A

Epiphyllous

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23
Q

Examples:

Epipetalous-
Epiphyllous-

A

Bringal
Lily

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24
Q

Free stamens are known as

A

Polyandrous

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25
Q

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

A

monadelphous - china rose
diadelphous - pea
polydelphous - citrus

26
Q

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

A

Salvia and mustard

27
Q

Gynoecium memeber

A

Carpel

28
Q

Three parts of ovary

A

Stigma
Style
Ovary

29
Q

Ovules are attached to what in an ovary

A

Placenta

30
Q

Types of carpel with example

A

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

31
Q

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

A

Seeds
Fruit

32
Q

What is placentation

A

Arrangement of ovules within the ovary

33
Q

Marginal placentation, example-

A

Ovules attached to the margin of the ovary
Pea

34
Q

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

A

ventral suture
Two

35
Q

Axile placentation ex-

A

Tomato
Lemon
China rose

36
Q

Parietal placentation ex

A

Mustard and argemone

37
Q

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

A

Parietal
Septum

38
Q

Free central placentation ex

A

Dianthus and Primrose

39
Q

Axile vs Free central placentation

A

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

40
Q

What is the characteristic feature of a flowering plant

A

Fruit

41
Q

If a fruit is formed without fertilisation, it is called

A

Parthenocarpic fruit

42
Q

Generally, the fruit is divided into two main parts

A

Pericarp and seeds

43
Q

When the pericarp is thick and fleshy it is differentiated into

A

Epicarp
Mesocarp
Endocarp

44
Q

Examples of drupe fruit

A

Mango and coconut

45
Q

Drupe fruits are developed from

A

Monocarpellary superior ovary

46
Q

Coconut mesocarp -
Mango mesocarp-

A

Fibrous
Edible and fleshy

47
Q

Mango has ……… endocarp

A

Stony

48
Q

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

A

Seed coat
Testa and tegmen

49
Q

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

A

Hilum

50
Q

Above the hilum is a small pore called

A

Micropyle

51
Q

The embryo consists of
(Dicots)

A

The embryonal axis and two cotyledons

52
Q

Endosperm is formed as a result of ?
Example

A

Double fertilisation
castor

53
Q

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

A

non-endospermous
pea, bean , gram

54
Q

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

A

endospermic
Orchids

55
Q

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

A

Coleoptile
Coleorhiza

56
Q

In monocot ( maize ) the embryo consists of -

A

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

57
Q

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

A

Endosperm

58
Q

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

A

Shield
Scutellum

59
Q

The embryo and the endosperm is separated by ?

A

The outer protein rich covering of the endosperm called aleurone layer

60
Q

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

A

Membranous
Fused
Fruit wall

61
Q

Fruit with liquid endosperm

A

Coconut

Botany (4 decks)

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