3. The scientific name of red algae is “Rhodophyta”
They belongs to the class of Rhodophyceae.
It is one of the largest group of eukaryotic algae.
It comprises one of the largest phyla of algae.
Red algae is a distinctive type of species that are mostly found in
deep freshwater body ( coral reef and tide pool)
They have the ability to survive in depth of the ocean rather than the
other algae
Some examples; Palmaria, Delesseria, Chondrus, Coralline algae.
4. Cell structure:
Lack of flagella and centrioles.
Presence of spindle fibres, microtubules.
Pit connections between cells filamentous genome.
Absence of chloroplast endoplasmic reticulum.
Chloroplast:
Due to the presence of water soluble pigments called phycobilins.
The chloroplast is surrounded by double membrane of the chloroplast
envelope.
5.
6. Algae are either unicellular or multicellular in nature.
Found in moist places.
Mode of reproduction can be sexual as well as asexual.
Asexual reproduction occurs by spore formation.
Sexual reproduction occurs by the physical contact of
haploid gametes.
Lacks a well-defined body.
7. Because of the predominance of the red pigment r-
phycoerythin in their body.
Apart from this, other major pigments found in them are
chlorophyll a and chlorophyll d.
Phycoerythrins are phycoblin pigments similar to those
found in the cyanobacteria that found in the cyanobacteria that
allow red algae to use blue- green wavelengths of light.
8. Male gametophyte fertilizes female egg.
Forms carpogonium which grows on the female.
Spores are developed and are dispersed.
Tetrasporophyte is formed.
Tetrasporophyte releases tetra spores.
Tetraspores are either male or female.
Cycle repeats.
11. Rich in micro and macronutrients, humic acids, and
phytohormones, it enhances soil.
Farmed seaweed is also an ingredient in cosmetics, animal
feed, and fertilizer.
Seaweed farms absorb nutrients and carbon dioxide to grow.
The farms can help improve water quality and buffer the
effects of ocean acidification in surrounding areas.
