Lecture 9: Plant Diversity 2 Flashcards
1
Q
What are the 5 derived traits of Seed Plants?
A
- Seeds
- Reduced Gametophyte
- Heterospory
- Ovules & Egg Production
- Pollen & Sperm Production
2
Q
What do Sporophytes offer Gametophytes?
A
- Protection & Nutrients
3
Q
Describe Heterospory
A
The Production of 2 different types of Spores
1.Megaspore - Female
2.Microspore - Male
4
Q
Ovules consist of:
A
1.) Integrument
2.) Megaspore
3.) Megasporangium
5
Q
What is an Integrument?
A
Protective sporophyte tissues surrounding Megasporangium; form a seed coat
6
Q
Describe a Pollen Grain
A
A male gametophyte within a sporopollenin (pollen wall)
7
Q
Tube cells produce _
A
Pollen Tube
8
Q
Generative Cells produce _
A
Pollen/Sperm
9
Q
Describe the 5 structures of Flowers
A
- Stamen (Male structure)
- Sepal
3.Petals
4.Receptacle
5.Carple (Female structure)
10
Q
SEQ Gymnosperm Life Cycle starting from fertilization
A
11
Q
SEQ Angiosperm Life Cycle starting from fertilization
A
12
Q
A major difference between the Gymnosperm and Angiosperm life cycle is that the…
A
