Brainscape's Knowledge GenomeTM

Browse over 1 million classes created by top students, professors, publishers, and experts.


See full index

Biology > Exam 3 > Flashcards

Exam 3 Flashcards

lecture 16

You may prefer our related Brainscape-certified flashcards:
AP® Biology flashcards Biology 101 flashcards
1
Q

What plants relied on water to move sperm to fertilize eggs

A

Ancestral Plants

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
2
Q

Evolved the ability to transport gametes and seed offspring via air, animals, water

A

Land Plants

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
3
Q

Bring together male and female gametes in dry (terrestrial) conditions

A

Seed Plants

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
4
Q

Gymnosperm

What are they

A

Conifers
-Cone bearing plants
-pine tree

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
5
Q

Angiosperm

What are they

A

Flowering plants

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
6
Q

What are the four major steps of forming a spore

A

-Formation of 2 spore types
- spores undergo mitosis (inside sporangia)
-Gametes undergo mitosis
-Pollination- fertilization
-Maturation of ovule into a seed

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
7
Q

Formation of Spores

A

-Each spore (n) type is produced in separate sporangia (2n)—> Meiosis
- Spores develop in segregated male or female gametophytes

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
8
Q

What do spores undergo?

A

Mitosis
-instead of being dispersed spores undergo mitosis inside the sporangia where they form the gametophyte

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
8
Q

What do female gametophytes (n) produce?

A

Eggs (n, Ovules)

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
8
Q

What do male gametophytes (n) produce?

A

Sperm (n, pollen)

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
9
Q

What do male gametophytes do once they are delivered near the ovum?

A

they germinate and grow through the tissue of the ovule to fertilize the egg (megaspore)

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
10
Q

Reproductive shoots specialized for the transfer or receipt of pollen

A

Flowers

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
11
Q

Flowers can have _________ carpels

A

one or more

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
12
Q

Where does pollen land on a flower

A

The stigma

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
13
Q

What grows through the style on a flower

A

A pollen tube

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
14
Q

What happens after the pollen tube is formed?

A

The pollen then fertilizes the ovary in the sporangia

15
Q

What surrounds the carpels

A

stamen

16
Q

Stamen is comprised of___

A

An anther on a filament

17
Q

Can not fertilize themselves

A

Self incompatible genes

18
Q

S genes

A

Self genes

19
Q

one sperm fertilizes the egg to form the 2n zygote while the other sperm fuses with the polar nuclei to form the 3n endosperm

A

Double Fertilization

20
Q

What are the 3 cells angiosperm male gametophytes have

A

2 are male gametes and the third controls the growth of the pollen tube

21
Q

What does the female angiosperm gametophytes contain

A
  • 8 haploid nuclei in 7 cells
22
Q

What is occurring when 1 haploid sperm fertilizes 1 haploid egg to form a diploid zygote

A

fertilization

23
Q

How do you form a triploid endosperm

A

When the second sperm unites with the double nuclei cell in the female gametophyte

24
Q

Serves as nutrition for the growing diploid embryo

A

Triploid endosperm

25
Q

Seeds produced without fertilization

A type of Asexual reproduction

A

Apomixis

26
Q

A new plant grows out of an existing plant

Another type of asexual reproduction

A

Vegetative Reproduction

Biology (6 decks)

Brainscape helps you reach your goals faster, through stronger study habits.
© 2024 Bold Learning Solutions. Terms and Conditions