L12: Flower Anatomy and Development Flashcards

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1
Q

flower

A

the modified shoot of a plant which produces the reproductive structures

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2
Q

inflorescence

A

a group of flowers arranged on a stem

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3
Q

what does budding of leaf primordia from the SAM produce

A

vegetative growth

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4
Q

what does budding of flowers from the SAM produce

A

reproductive growth

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5
Q

sepal

A

a floral organ which, with the other sepals, forms the outmost whorl of modified leaves of a flower; collectively for the calyx; typically leaf-like and green

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6
Q

calyx

A

all the sepals

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7
Q

primary function of the sepals

A

protection

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8
Q

petal

A

a floral organ, which, with all the other petals, forms the second whorl of modified leaves of the flower; often brightly colored to attract pollinators

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9
Q

primary function of the petals

A

attraction

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10
Q

corolla

A

all of the petals

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11
Q

stamen

A

male reproductive organ of a flower that consist of an anther and filament and produces the microsporangia; 3rd whorl of the modified leaves of the flower

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12
Q

androecium

A

all of the stamen

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13
Q

primary function of the stamen

A

produce and release pollen (contains male gametes)

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14
Q

pistil

A

female reproductive organ of a flower consisting of the stigma, style, and ovary; can be a simple pistil or a compound pistil; 4th whorl of modified leaves of a flower

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15
Q

gynoecium

A

the pistil(s)

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16
Q

simple pistil

A

1 carpel

17
Q

compound pistil

A

fusion of 2 or more carpels

18
Q

placements of organs relative to the pistil

A

hypogynous flower, perigynous flower, epigynous flower

19
Q

types of floral symmetry

A

regular/radially symmetric
irregular/bilaterally symmetric

20
Q

types of flower sex

A

perfect
bisexual
hermaphroditic
imperfect/unisexual (staminate or pistillate)

21
Q

2 types of plants with unisexual flowers

A

monoecious and dioecious

22
Q

monoecious

A

female and male flowers on the same plant

23
Q

Dioecious

A

female and male flowers on separate plants

24
Q

receptacle

A

the expanded tip of a flower stalk (pedicel or peduncle) to which the floral organs attach

25
Q

pedicel

A

a flower stalk which bears a flower that is part of an inflorescence

26
Q

peduncle

A

the flower stalk that bears an inflorescence of a solitary flower

27
Q

floral organs are ________ ________

A

modified leaves

28
Q

bract

A

a modified leaf associated with a flower

29
Q

flowering involves the switch of the SAM from ______ to ________

A

vegetative to reproductive

30
Q

what happens when the SAM switches from vegetative to reproductive

A

SAM becomes broader and more flattened

31
Q

flower whorls are produced from _____ to ________

A

inside

32
Q

determinate growth

A

apical meristem transforms into floral meristem. # of nodes will not increase