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Transcript
Phylum
Rhodophyta- Red Algae
Presented By: Kyle Williamson and Niaed Vega
What is Red Algae?
 Red algae is a large group of algae that
includes many seaweeds that are manly
red in color.
 Most red algae are known as macro
algae. Macro algae refers to multicellular
species.
 Rhodophytes have been classified as part
of kingdom Plantae by genetic analyses
Why is red algae important?
 Red algae act as habitat and food for
some animals.
 Certain calcified red algae known as
corallines help to build and maintain
coral reefs.
 Phycocolloids are starch-like chemicals
found in red algae and is often used in
food processing.
What allows red algae to live deeper than
other algae?
 The reason red algae can live at deeper depths is because red light is quickly filtered out
by the water column, while green and blue light penetrate the most deeply.
 Red algae reflect red light, but absorb light in the blue and green spectrum to get energy, so they
can survive where only a little bit of light penetrates.
 Members in this phylum have chlorophyll a, but not b.
 Chlorophyll a is a pigment directly involved with photosynthesis and chlorophyll b just assists
chlorophyll a in capturing light for photosynthesis.
Classification
DOMAIN
Eukaryota
KINGDOM/ SUPERGROUP
Plantae
PHYLA
Rhodophyta (Red Algae)
Chlorophyta (Green Algae)
Magnoliphyta (Flowering plants- sea grasses and mangroves)
THE END