Seedless Plants Flashcards
What are glaucophytes ?
- unicellular
- freshwater
- chlorophyll and carotenoids
What are red algae
- 6000-7000 specs
- most are multicellular (seaweeds)
- filamentous or leaflike blades / holdfast
What does phycoerythrin do
- reflects red and absorbs blue
What does carrageenan do
- thickener in ice cream and processed foods
What is agar
Microbial growth
What is nori
Important food sources in Asia
What is shallow h20
High chlorophylla and carotinods
What is the Irish moss
- hold fast
- stipe
- blade
- grows attached to rocks in the interracial zone
What is green algae
- > 21,000 species
- unicellular
- colonial
- multicellular
What is chlorophytes
- mostly freshwater
- unicellular
- colonial
What is clamydomonas
- unicellular
- pear shaped
- single cup shaped
What is volvox
- unicellular
- 50,000 vegetative cells
- oear shaped
- single cup shaped
Ulva ( sea lettuce )
- multicellular
- single nucleus
- cup shaped chloroplast
Spirogyra
- multicellular , filamentous
Chara
- multicellular
Superficially resembles land plants
Stem - like / leaf like structures
Fresh or brackish water attached to the muddy bottom
Stonewart
Stems calcium carbonate on cell walls / rough texture
Skunkweed
Unpleasant odor , mix of rancid garlic and skunk
Antheridia
Large round structures male reproductive structures
What are the land plant advantages ?
Greater access to sunlight increased availability of carbon dioxide ( c0 2)
Mineral nutrients found in soil
What does gametophyte produce
Produces gametes
What are sporophyte producing
Produces spores
What is cuticle
Waxy covering that retards desiccation
What is stomata
Openings in leaves that regulate gas exchange and water loss
What is stomata
Openings in leaves that regulate gas exchange and water loss
