Macroalgae Flashcards
1
Q
divisions of seaweed
A
- green
- brown
- red
2
Q
Three features
A
- multi-cellular
- secured to the bottom
- complex life histories
3
Q
Ecology of seaweeds
A
- shallow waters
- provide shelter/habitat
- contribute to primary production
4
Q
How do plants and Macroalgae differ
A
lack vascular tissue, leaves stems and roots
5
Q
Stipe
A
stem: flexible
6
Q
Blade
A
photosynthetic, no veins, no stomata
7
Q
Pneumatocyst
A
gas filled bladder, floats
8
Q
Holdfast
A
attaches to rocky areas
9
Q
Morphology of seaweed
A
stipe, blade, pneumatocyst, holdfast
10
Q
Green Algae characteristics
A
- green pigments
- starch food reserves
- cellulose cell wall
- unicellular, some multi
- structure: simple filament -> flat sheets
11
Q
What is Ulva
A
Sea lettuce: green algae
12
Q
Red Algae characteristics
A
- division Rhodophyte
- red color: phycobilin
- starch used as food storage
- cell wall made of agar, carrageenan, cellulose
13
Q
What are Red Algae’s cell walls made of?
A
Agar, carrageenan, cellulose
14
Q
Brown Algae characteristics
A
- brown color
- Laminarin and oil used as food reserves
- cell wall made of cellulose and alginates
- structurally complex
- commonly found on rocks
15
Q
What division is brown algae?
A
Phaeophyta
