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PBIO > Angiosperms: flower structure > Flashcards

Angiosperms: flower structure Flashcards

1
Q

Angiosperm

A

“vessel seed” - seeds are enclosed in a container (carpel/fruit)

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2
Q

Whorls of a complete flower: Individual structure (de adentro pa fuera)

A
  1. carpel
  2. stamen
  3. petal
  4. sepal
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3
Q

Whorls of a complete flower: all structures (adentro pa fuera)

A
  1. gynoecium
  2. andoecium
  3. corola
  4. calyx
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4
Q

Actinomorphic

A

regular, radial symmetry

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5
Q

adnate

A

unlike parts, such as petals and stamens, wholly or partly fused together

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6
Q

androecium

A

male reproduction system organ made of filament and anther

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7
Q

anther

A

in an angiosperm, the terminal pollen sac of a stamen, where pollen grans containing sperm-producing gametophytes form

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8
Q

basal angiosperm

A

the most primitive lineages of flowering plants, including amborella and water lilies

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9
Q

calyx

A

the whorl of sepals in a flower collectively forming the outer floral envelope or layer of the perianth enclosing and supporting the developing bud

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10
Q

carpel

A 
female reproductive organ of the flower:
1. stigma
2.style
3.ovary
(megasporophyll)
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11
Q

carpellate

A

flower that only contains a female reproductive system

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12
Q

companion cell

A

phloem cell that surrounds sieve tube elements

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13
Q

compound leaf

A

a leaf in which the blade is divided into two or more smaller leaflets

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14
Q

connate

A

fusion between members of a whorl (i.e petal+petal)

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15
Q

corolla

A

whorl of petals

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16
Q

cotyledon

A

“seed leaf” that provides nutrients to seedlinga and becomes the first seed of the plant

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17
Q

Fusion of floral parts

A
  1. Adnate (different parts)

2. connate (same)

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18
Q

free

A

structures are not fused together

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19
Q

floral symmetry

A
  1. regular

2. irregual

20
Q

Regular symmetry

A

flower can be divided in three or more identical parts

21
Q

Irregular symmetry

A

Flower can only be divided in one single plane into two mirror-image halves

22
Q

Ovary position

A
  1. superior

2. Inferior

23
Q

Superior Ovary position

A

ovary attached to the receptacle above the attachment of other floral parts

24
Q

Inferior ovary position

A

ovary lies below the attachment of other floral parts

25
Q

Insertion of parts

A
  1. Hypogynous
  2. Perigynous
  3. Epigynous
26
Q

Hypogynous

A

having the stamens and other floral parts situated below the carpel

27
Q

Perigynous

A

Having the stamens and other floral parts at the same level than the carpel

28
Q

Epigynous

A

Having the ovary enclosed in the receptacle, with the stamens and other floral parts situated above the carpel

29
Q

Floral Whorls

A
  1. complete
  2. incomplete
  3. perfect
  4. imperfect
30
Q

Complete flower

A

all four whorls are on it

31
Q

Incomplete flower

A

1 or more whorls are not present

32
Q

Perfect Flower

A

Stamen and pistil are present

33
Q

Imperfect flower

A

contains stamen OR pistil

34
Q

Leaf form

A
  1. simple

2. compound

35
Q

simple leaf

A

a leaf that has an undivided blade

36
Q

compound leaf

A

a leaf in which the blade is divided into two or more smaller leaflets

37
Q

Leaf margin

A
  1. entire margin

2. toothed margin

38
Q

entire margin

A

structure of the leaf’s edge is smooth

39
Q

toothed margin

A

leaf’s edge is jabbed

40
Q

inflorescences

A

a group of flowers

41
Q

sessile

A

a flower or leaf having NO stalk

42
Q

phyllotaxis

A

arrangement of leaves.

  1. alternate
  2. opposite
  3. whorled
43
Q

alternate

A

one leaf per node

44
Q

opposite

A

two leaves opposite one another per node

45
Q

whorled

A

three or more leaves per node

PBIO (14 decks)

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