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Chapter 19: Algae and the Origin of Eukaryotic Cells (Origin of Eukaryotic…
Chapter 19: Algae and the Origin of Eukaryotic Cells
Concepts
Endosymbiosis
Protozoans and Algae
Embryophytes
Origin of Eukaryotic Cells
DNA Structure
In prokaryotes, DNA is "naked"
In eukaryotes, DNA is more elaborately packaged
Nuclear Structure and Division
Organelles
Origin of Mitochondria and Plastids: The Endosymobiont Theory
Autogenous theory and Endosymbiont theory
Origin of Mitochondria
Origin of Plastids
Primary Endosymbiosis
Secondary Endosymbiosis
Type of Cytokinesis
Phycoplast
Occur in Algae
Characteristics of Various Groups of Algae
Green Algae
moved onto land
Body Construction of Green Algae
1) Motile Colonies
2) Nonmotile Colonies
3) Filamentous Body
4) Membranous Body
5) Parenchymatous
6) Coenocyic or SIphonous Body
Life Cycles of Green Algae
Monobiontic Species
Dibiontic
Alternation of Isomorphic Generations
Isogamous
Anisogamy
Representative Genera of Green Algae
Unicellular Species
Motile Colonial Species
Filamentous Species
Laminar Species
Coenocytic Species
Parenchymatous Species
Green Algae and Embryophytes
Streptophytes
Archaeplastids
Primoplantae
Red Algae
Large group of especially distinct and fascinating algae
Pit connections
agar
floridean starch
Brown Algae and Their Relatives: The Heterokonts
Brown Algae
almost exclusively marine
Littoral Zone
Laminarin
Receptacles
Conceptacles
Trumpet Cells
Diatoms
Easy to recognize because of their distinctive morphology
Diatomaceous Earth
Yellow-Green Algae
occur mostly in fresh water
Golden-Brown Algae
single cells
Coccolithophorids
Dinoflagellates
have many unusual characters
"Red Tide"
Oomycetes
are diverse in structure and nutrition
Euglenoids
have been discovered, named, and placed into 36 genera
majority never had chloroplasts
