1.2.3 multicellular algae Flashcards
What is the name for red algae?
Rhodophyta
What are brown algae called
Phaeophyta
What do we call green algae?
Chlorophyta
When did multicellular organisms come about?
Cambrian explosion
What are disadvantages of being a haploid?
You only have one set of genes, so if one part gets knocked out, you are dead
What is the life cycle of the algae?
haploid gametophyte alternates with diploid sporophyte
What is a huge divison of the brown algae?
Kelp
name the three parts in the brwon algae seaweed
the holdfast, stipe, and blade
What is the advantage of rhodophyta having a red pigment?
It can harvest all the blue light that travels down through the ocean depths
What coloration does rhodophyta have?
CHL and phycoerythrin
Which group of algae never have flagella?
Rhodophyta
What dyes are in the Chlorophyta
CHL a, b, and carotene
What is the name for the brown pigment in brown algae?
fucoxanthin, acarotenoid
What is the name of the yellow carotenoid?
Carotene
What is the name of the red pigment in the rhodophyta?
Phycocyanin
What two substances are found in the cell wall of the Phaeophyta?
cellulose and algin
what energy storing molecule is used instead of starch for the phaeophyta?
Laminarian
What is algin used for?
thickener
What innovations have been found in the arctic phaeophyta?
Antivirals
What is the probable cyanobacteria ancestor?
Red algae
What is the cell wall made of in the rhodophyta?
agar and carrageenin
What are phycoblisomes?
Phycobilisomes are light harvesting antennae of photosystem II in cyanobacteria
He gave us some in class. What was it?
dulse
What is the molecule secreted by rhodophyta that prevent the formation of biofilms?
furanone
