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BIOL 350 - Plants and Fungi > Ch19: Angiosperms Intro > Flashcards

Ch19: Angiosperms Intro Flashcards

1
Q

What are the fertile parts of the flower?

A

Stamens and carpels.

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2
Q

What is the collective name for all petals?

A

corolla

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3
Q

What is the collective name for all sepals?

A

Calyx

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4
Q

What is the collective name for all petals and sepals together?

A

perianth

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5
Q

Where are the microsporangia located in flowers?

A

The two lobed anther contains four microsporangia (pollen sacks)

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6
Q

What is found within the gynoecium of a flower?

A

Gynoecium = house of woman

Carpels are collectively called the gynoecium (collection of pistils are also gynoecium). Megasporophyll folded lengthwise enclosing one or more ovules.

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7
Q

What is a perfect flower?

A

Includes BOTH stames and carpels.
- Bisexual

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8
Q

What is an imperfect flower?

A

Either stemens or carpels missing.
- unisexual

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9
Q

What is staminate?

A

Only stamen present, missing carpals

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10
Q

What is carpellate?

A

Only carpel present, missing stamens.

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11
Q

What are the four floral whorls?

A
  1. sepals
  2. petals
  3. stamens
  4. carpels
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12
Q

Complete vs incomplete.

A

Complete contains all four floral whorls.

Incomplete lack any of them.

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13
Q

What is the difference between epigynous, hypogynous and perigynous? How does this correspond to inferior and superior ovaries?

A

Hypogynous flower: flower is below ovary (supreior ovary)

Epigynous flower: Flower is above ovary (inferior ovary)

Perigynous flower: intermediate conditions

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14
Q

What does the angiosperm ovary develop into?

A

Fruit

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15
Q

What is found within an angiosperm pollen grain?

A

Large vegetative/tube cell and a small generative cell.

Outer wall (exine) and inner wall (intine). The exine contains sporopollenin, which protects the pollen grain from UV, dehydration, and pathogens.

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16
Q

What happens in double fertilization?

A

Two fertilization events. The first produces the zygote, the second produces the endosperm.

17
Q

What is the carpel?

A

Consists of the style, stigma, and ovary.
In a pistil, the carpels are the visible leaf parts of the style.

18
Q

What is the stamen?

A

Male reproductive organs (collectively called the androecium). Includes filament and anther.

19
Q

Be able to label the parts of the flower.

A

BIOL 350 - Plants and Fungi (13 decks)

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