Stem Flashcards

1
Q

Stem

A

Opposite to root ( radicle )

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2
Q

Stem is

A

Positively phototrophic

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3
Q

Stem is negatively

A

Geotrophic

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4
Q

Stem grows against

A

Moisture ( negatively hydrotrophic )

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5
Q

Stem develops from

A

Plumule

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6
Q

Parts of stem

A

● node
● internode
● foliage leaves
● scale leaves
● storage leaves

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7
Q

Node

A

Area of stem where leaves grow

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8
Q

Internode

A

Distance between 2 nodes

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9
Q

Foliage leaves

A

Green leaves which grown in plants

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10
Q

Scale leaves

A

Small, membrane like leaves protecting the stem

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11
Q

Scale leaves are seen

A

Ginger

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12
Q

Storage leaves

A

Thick leaves which grow to store food

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13
Q

Storage leaves are seen in

A

Aloe vera

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14
Q

Functions of stem

A

● To support plant
● To bear fruit, leaves, flowers
● Conduction of water, minerals

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15
Q

Modifications of stem

A

● Storage
● Photosynthesis
● Climbing
● protection
● vegetative protection

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16
Q

Storage in stem

A

Food storing stem like tubers

17
Q

Storage stem is seen in

A

Ginger

18
Q

Photosynthesis in stem

A

Stems which harbor chlorophyll which gives them green color

19
Q

Photosynthetic stem is seen in

A

Cacti

20
Q

Climbing stem

A

Stem is long, flexible which have tendrils for Anchorage

21
Q

Climbing stem is seen in

A

Vitis

22
Q

Protection in stem

A

Stem bearing thorns to protect them from herbivores

23
Q

Protection in stem is seen in

A

Bougainvillea

24
Q

Vegetative propagation

A

Propagation through vegetative parts of a plant

25
Q

Vegetative propagation examples

A

Runner stem, sobule, sucker, offset

26
Q

Runner stem

A

Horizontally growing stem giving rise to roots and aerial branches

27
Q

Runner stem is seen in

A

Grass

28
Q

Sobole, sucker stem

A

Stem grows roots underground and give rise to aerial branches horizontally

29
Q

Offset stem

A

Grows short horizontal branch which produces rosette of leaves

30
Q

Offset stem is seen in

A

Pistia

31
Q

Runner , sobole, sucker stem is

A

Terrestrial

32
Q

Offset stem is

A

Aquatic