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Bio 108 > Lecture 12 Angiosperms > Flashcards

Lecture 12 Angiosperms Flashcards

1
Q

What are Anthophyta?

A

The phylum Anthophyta, meaning flowering plants. That make up the vast majority of seed plants.

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2
Q

What does the root word “Anthos” mean?

A

Flower

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3
Q

What is a flower?

A

A flower is a specialized shoot with up to 4 whorls of modified leaves.

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4
Q

What are the 4 Whorls of modified leaves within flowers?

A
  1. Sepals
  2. Petals
  3. Stamens=
  4. Carpels
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5
Q

What are Stamens?

A

The anther + filament(male)

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6
Q

What are carpels?

A

stigma + style + ovary (female)

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7
Q

Where is the ovary located within plants?

A

ovary at base of carpel contains 1 or more ovules.

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8
Q

What are Perfect flowers?

A

Contains both stamens & carpels, and therefore complete (= perfect) in Linnaeus’ opinion.

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9
Q

What are imperfect flowers?

A

Flowers that contain either stamens or carpels

  • hence a male (has only stamens) or a female flower (has only carpels)
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10
Q

Species with imperfect flowers can be _________

A

Monoecious

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11
Q

What does the root word “oikos” mean?

A

house.

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12
Q

What is a monoecious plant?

A

A plant with male and female flowers on the same plant.

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13
Q

What are Dioecious plants?

A

Plants that have male and female flowers on different female plants..

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14
Q

What are flower modifed to attract and why?

A

They are modified to attract pollinators, providing them with food rewards.

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15
Q

Are Non-Conifer gymnospersm or angiosperms more reliant on pollinators for reproduction?

A

Angiosperms

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16
Q

What are the food rewards in flowers?

A

nectar or pollen

17
Q

What are fruit?

A

They are the mature Ovary containing seeds, being the container part of the ANGIOsperm.

18
Q

What are cotyledons?

A

Embryonic seed leaves that are present within the seed along with the Radicle

19
Q

What is a Radicle?

A

Embryonic root

20
Q

What is the basis of the subdivision of anthophyta into the groups called
Monocytla and Dicotyla?

A

The number of cotyledons within a seed.

21
Q

In angiosperm what is the megagametophyte called?

A

The Embryo Sac

22
Q

How many cells are within the Embryo sac?

A

7 cells, far less than the gymnosperm megagametophyte.

Bio 108 (24 decks)

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