Botany 130 - Lecture 31

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Last updated 1:32 AM on 4/30/26
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81 Terms

1
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Carpel

The ovules, ovary, stigma and style together makes up what?

2
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Pistil

1 or more carpels makes up what? (if the carpels are fused)

3
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Gynoceium

???

4
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7 Cells and 8 Nuclei

The female gametophyte has how many cells and nuceli?

5
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1 cell has 2 nuceli

How can the female gametophyte have more nuclei than cells?

6
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Embryo Sac

What is another name for the female gametophyte?

7
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3 Antipodal Cells
2 Polar Nuclei
1 Egg
2 Synergid Cells

What cells make up the female gametophyte?

8
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Egg

What fuses with the sperm to make a zygote?

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Synergids

What attracts a pollen tube and controls gamete fusion?

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???; Synergids

Once a female gametophyte is __, the __ take over

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Polar Nuclei

What fuses with a sperm to form the endosperm?

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Antipodals

What controls the megagametophyte development?

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Pollination

A diversity of mechanisms that promote dispersal of pollen from a stamen to a stigma

14
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A Pollen Tube

On an appropriate stigma, the pollen will produce what?

15
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The Style

Pollen tubes grow down what to find the egg?

16
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Nutritive

The endosperm is a __ tissue

17
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Gymnosperms

Naked Seed Group

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Angiosperms

Hidden Seed Group

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Gymnosperms

In what group is pollen delivered directly to the ovule?

20
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Angiosperms

In what group is pollen delivered to the carpel tissue?

21
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Carpel

In angiosperms, the ovule is encased in a sporophyll called a what?

22
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On the surface of the sporophyll

In gymnosperms, the ovules are sitting where?

23
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Inside of the sporophyll

In angiosperms, the ovules are sitting where?

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  • Contain dormant embryo

  • Seed coat forms from the integument(s)

What are two similarities between gymnosperms and angiosperms?

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The main nutritive tissue for the embryo

What is one important difference between gymnosperms and angiosperms?

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Endosperm; Megagametophyte

The main nutritive tissue in angiosperms and gymnosperms are __ and __ respectively

27
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2; 3

How many generations are in the seed of angiosperms and gymnosperms respectively

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Basal Condition

  • Two cotyledons

  • Uni-aperturate pollen

  • Flower parts in 3s

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Aperture

A soft spot in the pollen wall through which the pollen tube starts to grow

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Embryonic

Cotyledons are __ leaves

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B

A, B, C or D?

<p>A, B, C or D?</p>
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1 Pistil; 1 Carpel

1; Number of pistils and carpels

<p>1; Number of pistils and carpels</p>
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3 Pistils; 3 Carpels

2 ; Number of pistils and carpels

<p>2 ; Number of pistils and carpels</p>
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1 Pistil; 3 Carpels (Fused)

3 ; Number of pistils and carpels

<p>3 ; Number of pistils and carpels</p>
35
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A

A, B, C or D?

<p>A, B, C or D?</p>
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Antipodals

1

<p>1</p>
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Polar Nuclei

2

<p>2</p>
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Egg

3

<p>3</p>
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Synergids

4

<p>4</p>
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C

A, B, C or D?

<p>A, B, C or D?</p>
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Sperm

1

<p>1</p>
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Tube Nucleus

2

<p>2</p>
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Pollen with a Pollen Tube

Entire Image

<p>Entire Image</p>
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Stigma

1

<p>1</p>
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Pollen Tube

2

<p>2</p>
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2 Sperm

3

<p>3</p>
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Style

4

<p>4</p>
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Ovary

5

<p>5</p>
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Ovule

6

<p>6</p>
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Pollen Grain

7

<p>7</p>
51
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Polar Nuclei

8

<p>8</p>
52
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Egg

9

<p>9</p>
53
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Ovule

10

<p>10</p>
54
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Polar Nuclei

11

<p>11</p>
55
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Egg

12

<p>12</p>
56
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2 Sperm

13

<p>13</p>
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Egg

1

<p>1</p>
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Sperm

2

<p>2</p>
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Synergids

3

<p>3</p>
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Polar Nuclei

4

<p>4</p>
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Zygote

5

<p>5</p>
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2 Polar Nuclei + Sperm

1

<p>1</p>
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Egg + Sperm Nuclei

2

<p>2</p>
64
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C

A, B, C or D?

<p>A, B, C or D?</p>
65
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Endosperm

1

<p>1</p>
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Suspensor

2

<p>2</p>
67
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Embryo Proper

3

<p>3</p>
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Ovules

1

<p>1</p>
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Sporophyll

2

<p>2</p>
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Ovules

1

<p>1</p>
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Sporophyll (Carpel)

2

<p>2</p>
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Endosperm

1

<p>1</p>
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Embryo

2

<p>2</p>
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Integument

3

<p>3</p>
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C

A, B, C or D?

<p>A, B, C or D?</p>
76
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Basal Angiosperms

1

<p>1</p>
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Monocots

2

<p>2</p>
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Eudicots

3

<p>3</p>
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Two Cotyledons

1

<p>1</p>
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Uni-Aperturate Pollen

2

<p>2</p>
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Flower Part in 3s

3

<p>3</p>