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Plant Bio > Flowers Lab > Flashcards

Flowers Lab Flashcards

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1
Q

In what order is flowers identified?

A

Florescence/ inflorescence > pedicel (stem)> calyx (sepal) > corolla (petals) > stamen > carpels > symmetry

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2
Q

What feature is used often to identify plants, and why?

A

flowers, because they are more reliable than vegetative characteristics

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3
Q

What are the sterile parts of the flower?

A

sepals/ calyx
petals/ corolla

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4
Q

What is the perianth?

A

the calyx and corolla

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5
Q

What does the sepal do?

A

protect flower bud

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6
Q

What is the stamen, and what does it include?

A

male reproductive structures

anthers/ filamets

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7
Q

what is the androecium

A

stamen

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8
Q

What is the pistil?

A

the female portion (carpel), including the stigma, style, and ovary

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9
Q

What is the gynoecium?

A

the carpels

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10
Q

What is a complete flower?

A

Possesses the sepals, petals, stamens, and carpels

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11
Q

What is an incomplete flower?

A

missing one of the four main floral parts

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12
Q

What is a perfect flower?

A

a bisexual flower with both stamen and carpel

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13
Q

What is an imperfect flower?

A

unisexual flower missing either the stamen or carpel

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14
Q

What is a staminate flower?

A

a male unisexual flwoer with just the stamen

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15
Q

What is a carpellate flower?

A

a female unisexual flower with just carpels present.

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16
Q

What is a monoecious plant?

A

possess both staminate and carpellate flower

17
Q

What is a dioecious plant?

A

plant has either staminate or carpellate flower, but not both!

18
Q

What is hypogynous?

A

sepals, petals, and stamens are inserted under the carpel. Ovary is superior

19
Q

What is a perigynous flower?

A

the sepal, petals, and stamens fused together to form a cup. the gynoecium sits inside the cup but not fused to it. Ovary is superior.

20
Q

What is the hypanthium?

A

fused cup in a perigynous flower.

21
Q

What is an epigynous flower?

A

sepals, petals, and stamens arise from a point above the ovary. Ovary is inferior.

22
Q

What is actinomorphic?

A

Radial symmetry, where cutting the flower in any pane produces a mirror image.

23
Q

What is a zygomorphic flower?

A

a bilateral flower where a flower can only mirror in one plane.

24
Q

How do indeterminate and determinate inflorescence differ?

A

indeterminate plants have no terminal flowers/

25
Q

How is inflorescece determined (4)?

A

number of flowers
positional relationships
degree of development of their pedicels
nature of branching pattern

26
Q

What is a terminal flower?

A

flower at the tip of a stem

27
Q

What is a spike?

A

elongated inflorescence with sessile, dense flowers

28
Q

What is catkin inflorescence?

A

pendant or erect inflorescence where unisexual flowers lack petals and are hidden by scaly bracts.

29
Q

What is raceme inflorescence?

A

an elongated inflorescence of pedicellate flowers on an unbranched rachis.

30
Q

What is an umbel inflorescnece?

A

flat-topped rounded inflorescence where pedicels arise from a common point.

31
Q

What is a corymb inflorescence?

A

similar to umbel, but pedicels vary in length inserted along the rachis, not from a common point.

32
Q

What is panicle inflorescence?

A

branched inflorescence with a central rachis which bears branches with branch as well.

Plant Bio (22 decks)

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