Brainscape's Knowledge GenomeTM

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


See full index

Biology 102 > ch. 30 > Flashcards

ch. 30 Flashcards

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

In addition to seeds, what is common to all seed plants (4)

A

1) Reduced Gametophytes
2) Heterospory
3) Ovules
4) Pollen

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

Reduced Gametophytes characteristics (2)

A

1) Gametophytes of seed plants are microscopic
2) Develop within walls of spores retained within the tissue of parent sporophyte

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

Giant Gametophyte

A

Gametophyte: Dominant
Sporophyte: Reduced, depends of gametophyte for nutrition
Mosses and nonvascular plants

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

Small Gametophyte

A

Gametophyte: Reduced, independent
Sporophyte: Dominant
seedless vascular plants

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

Tiny Gametophyte

A

Gametophyte: Reduced, microscopic, dependent on sporophyte, in ovulate and pollen
Sporophyte: Dominant
Seed plants (gymnosperms and angiosperms)

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

Homosporous

A

Plants that produce one kind of spore, usually produces bisexual gametophyte
Ex. Ferns

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

Heterosporous

A

Produce two types of spores, which develop to either male or female gametophytes
Ex. Seed plants

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

Microsporocytes (2n) give rise to

A

microspores (n) (meiosis)

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

Gametophyte (n) produces

A

Gametes (mitosis)

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

Megasporangia

A

1) produce megaspores that give rise to female gametophytes
2) develop on megasporophylls

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

microsporangia

A

1) produce microspores that give rise to male gametophytes
2) develop on microsporophylls

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

Chain of mega

A

Megasporophylls contain megasporangia containing megasporocytes which make megaspores

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

chain of micro

A

microsporophylls contain microsporangia containing microsporocytes which make microspores

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

Ovules consists of? (3)

A

Consist of:
1) Megasporangium (2n)
2) megaspore (n)
3) Integument (2n)
- 1 integument for gymnosperm
- 2 integument for angiosperm

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
15
Q

What is a pollen grain

A

a developed microspore that contains a male gametophyte

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
16
Q

What is pollination?

A

transfer of pollen to ovules

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
17
Q

Germinated pollen grain produces

A

Pollen tube that discharges sperm into female gametophyte in ovule

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
18
Q

Where are Gymnosperms seeds located?

A

Exposed on sporophylls that form cones

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
19
Q

Where are Angiosperm seeds located?

A

Found in fruits, mature ovaries

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
20
Q

Life cycle of pine (male)

A

1) Pollen cones contain microsporophyll which contain microsporangia
2) Within the microsporangia there are cells called microsporocytes that go through meiosis to make microspores
3) Microspores turn into pollen grain(n) which have male gametophyte

21
Q

Life cycle of pine (female)

A

1) Ovulate cones contain Megasporophylls(2n) that bear megasporangia(2n) and stem tissue
2) The megasporocytes in the megasporangia go through meiosis to produce haploid megaspores
3) Megaspores develop into female gametophytes which are retained in the megasporangia

22
Q

4 Gymnosperm phyla

A

1) Cycadophyta
2) Ginkgophyta
3) Gnetophyta
4) Coniferophyta

23
Q

Cycadophyta

A

1) Large cones and palm like leaves
2) Has flagellated sperm

24
Q

Ginkgophyta (3)

A

1) One living species, Ginkgo biloba
2) Has flagellated sperm
3) has high tolerance for air pollution

25
Q

Gnetophyta (2)

A

1) 3 genera: Gnetum, Ephedra, Welwitschia
2) Vary in appearance and location

26
Q

Ephedra

A

anxiety

27
Q

Sinica

A

psychosis

28
Q

Coniferophyta (3)

A

1) Largest of the gymnosperm
2) Mostly woody cones
3) Mainly evergreens

29
Q

Angiosperm (domain, kingdom, phylum)

A

Domain: Eukarya
Kingdom: Plantae
Single Phylum: Anthophyta
Flower and fruits

30
Q

What is the purpose of Flowers?

A

Angiosperm meant for sexual reproduction

31
Q

4 Floral organs

A

Sepals
Petals
Stamens
Carpel

32
Q

Sepals characteristics (3)

A

Enclose the flower
protect unopened floral buds
resemble leaves

33
Q

explain the coloration of Petals

A

Bright color to attract pollinators or no color if wind pollinated

34
Q

Stamens characteristics(2)

A

1) Male reproductive organs
2) Contain filament, with a sac called anther

35
Q

Carpels characteristics(2)

A

1) Female Reproductive organs
2) Has an ovary at the base of a style leading up to stigma (where pollen is received)
Fertilized ovules develop into seeds

36
Q

What do Stamens contain?

A

Contain filament, with a sac called anther

37
Q

What are microspores

A

produced in anthers, develop into pollen grains containing male gametophytes

38
Q

What is an Anther

A

sac on the stamen, produces and holds microspores (pollen)

39
Q

What are Pistil

A

Single carpel or two or more fused carpels

40
Q

Radial Symmetry

A

Any imaginary line through the central axis divides the flower into two equal parts

41
Q

Bilateral Symmetry

A

Flower can only be divided into two equal parts by a single imaginary line

42
Q

When do Fruits form? What is its function?

A

Formed when ovary wall thickens and matures
Protects seeds and aid in dispersal

43
Q

Male gametophytes located where on Angiosperms

A

In pollen grains produced by the microsporangia of anther

44
Q

Female gametophyte located where on angiosperms

A

Within an ovule within an ovary at the base of a stigma

45
Q

Micropyle

A

Ovule is entered through a pore called the micropyle

46
Q

Double Fertilization

A

when pollen tube discharges two sperm into the female gametophyte within an ovule

47
Q

What starts the development of endosperm

A

One Sperm must fertilize the egg, the other combines with two polar nuclei in the central cell of female gametophyte

48
Q

Cotyledons

A

One/two seed leaves

Biology 102 (38 decks)

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