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Life Science > Plant Diversity > Flashcards

Plant Diversity Flashcards

1
Q

What are the major groups of plants

A

Bryophytes
Ptereophytes
Gymnosperms
Angiosperms

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2
Q

What are taxonomists

A

People who classify organisms

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3
Q

What are the different types of vascular plants

A

Pterophytes
Angiosperms
Gymnosperms

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4
Q

What are pterophytes

A

Seedless plants

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5
Q

An example of a pterophyte

A

Ferns

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6
Q

Seed bearing plants

A

Gymnosperms and angiosperms

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7
Q

What are Gymnosperms

A

Cone bearing plans

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8
Q

Examples of Gymnosperms

A

Conifers and yellow woods

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9
Q

What are Angiosperms

A

Flowering plants

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10
Q

Non vascular plants

A

Have rhizoids to anchor plants
No Xylem so can’t grow tall
Homosporous
No cuticle
Water for fertilisation

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11
Q

Examples of Bryophytes

A

Mosses and Liveworts

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12
Q

Vascular plants

A

Have cuticle and stomata
Xylem and phloem transport water and mineral
Seeds for reproduction

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13
Q

Gametophyte

A

Haploid
Dominant generation
Photosynthetic

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14
Q

Sporophyte

A

Diploid
Produces haploid spores by meiosis

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15
Q

Seedless plants

A

Heterosporous
Lower vascular plants
Reproduce by spore bearing leaves
Motile male gametes
Thin cuticle and stomata
Roots grow out of rhizomw
Independent sporophyte

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16
Q

Seed bearing plants

A

Homosporous
Higher vascular plants
Reproduce by seeds
Resistant seeds
Pollen grains produced from microspores

17
Q

Cone bearing plants

A

Needle like leaves
Single vein
Male cone has pollen sacks which bursts to reach megasporangium

18
Q

Flowering plants

A

Flower attracts pollinators to stigma
Remain genetically strong as self pollination is avoided

19
Q

What will happen if there’s no pollination

A

No fertlisation
No production of fruit & seed crops
Natural ecosystems collapse
Animals die

20
Q

Classes of flowering plants

A

Monocotyledons
Dicotyledons

21
Q

Monocots

A

Single seed leaf
Narrow leaves
Parallel veins
x3 flower parts
Not separated into sepals & petals
Scattered vascular bundles
No secondary thickening
Fibrous leaves
Wind pollinated

22
Q

Dicots

A

Two seed leaves
Broad leaves
Network of veins
x4/5 flower parts
Has Sepals and petals
Ring vascular bundles
Secondly thickening
Tap root
Insect pollinated

23
Q

What does the stamen have

A

Anther and Filament

24
Q

What is the Anther

A

Where pollen is formed

25
Q

What does the Carpel have

A

Stigma
Style
Ovary
Ovule

26
Q

What happens to the ovary and the ovule

A

Ovary- mature into fruit
Ovule- forms seed after fertilisation

27
Q

What is the receptacle

A

The part that supports floral parts

28
Q

What does the Perianth contain

A

Corolla
Calyx

29
Q

Corolla

A

Petals

30
Q

Calyx

A

Sepals

Life Science (6 decks)

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