Exploring plant-like protist diversity Flashcards
What are the 4 supergroups of the Eukarya?
- Excavata
- SAR
- Archaeplastida
- Unikonta
What characterizes a eukaryotic cell?
- Have organelles
- More complex than prokaryotic cells
Are there multicellular protists?
Yes
SAR- Stramenopiles
Diatoms are a major component of?
Phytoplankton
What are the main differences between brown and golden algae? (two types of stremenopiles)
Golden:
-Simple structure
-Mostly unicellular
-Ex: Carotenoids
Brown:
-Large complex
-Multicellular
-Ex: Kelp/seaweed
When an algae and plant share similarities, what type of evolution is this?
Analogous
What type of life cycle does the Brown Alga have?
An alteration of generations (has haploid and diploid stages)
Heteromorphic vs isomorphic
H: Generations look different
I: Generations look similar
The alveolates- Dinoflagellates
Have a body made up of?
Cellulose
The alveolates- Dinoflagellates
What is an example of dinoflagellates?
Phytoplankton
The alveolates- Dinoflagellates
What causes red tides in dinoflagellates?
Blooms (explosive growth)
The Archaeplastida
What are the two types?
Are they multicellular, grouped together, unicellular?
What types of habitats do they live in?
Red and Green algae
All 3.
Diverse habitats: freshwater, marine, terrestrial
What is the closest relatives of land plants?
Archaeplastida
Why is red algae red?
A pigment called phycoerythrin
Is red algae unicellular or multicellular?
Mostly multicellular
Does red algae have flagellate structures in their life cycle?
No
You can make a sushi wrap out of this type of algae
Red algae
Algal cell structures
- Cell wall
- Vacuole
-to regulate water content - Pyrenoids
Pyrenoids are within what structure and is the site of what synthesis?
Chloroplasts
Starch
What type of life cycle does brown alga have?
Alteration of generations
