water retaining material in kelps
phycocolloid
frietschiella is an example for
terrestrial chlorophyceae
epiphytes?
protococcus, trenteopohlia
endophytes?
Coleocheate nitellum
endozoic
zoochlorella (sponges), chlorella (hydra)
epizoic
cladophora and charaellum (mollusc shells and crustaceans)
red colour of snow is due to which alga?
chlamydomas nivalis, has presence of astaxanthin
which members of chloro are used for sewage oxidation tanks?
chlorella, chlamydomonas, pediastrum
red rust of tea leaves and coffee crop is caused by?
Cephaleuros virescens
algae that do not undergo haplontic life cycle?
fucus (diplontic), ectocarpus , laminaria, polysiphonia (haplo diplontic)
phaeo that are not marine
?
pleurocladis, bodanelia
parenchymatous tissue is present in higher forms of phaeo such as?
sargassum, fucus, laminaria, macrocystis
an alga that is known to wreck ships
sargassum natans
what xanthophylls are responsible for colour of phaeo
fucoxanthin (main), other: lutein, flavoxanthin, violaxanthin
iodine and potash rich alga (respectively)
fucus-laminarin, macrocystis-nereocystis
effective blood anticoagulant is a chemical called ____________, obtained from _______, which is a _____ algae
sodium laminarin sulphate, laminarin, brown
uses of alginic acid
emulsions, ice creams, cosmetics, flame proof (impo) etc
_______ is a pasrasitic red alga parasitic over polysiphonia
harveyella
rhodo phycocolloids?
agar, carrageenin, funori
pigments in red algae?
chl-a, carotenoids, phycobilins like r-phycoerythrin and little bit of phycocyanin
______ is a red alga obtained from ____ ____ used to hasten blood coagulation, as a cleaning agent, emulsifier etc
carrageenin, Chrondrus crispus
red algae which are used as:
i- adhesive
ii- eateries
iii-vermifuge
iv-anti bacterial
i-funori
ii-porphyra, rhodymenia (sheep’s weed), chondrus (irish moss)
iii-corallina
iv- polysiphonia
