Poisoning saxitoxin is resistant to heat unintended

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Unformatted text preview: IC SHELLFISH POISONING SAXITOXIN IS RESISTANT TO HEAT UNINTENDED CONSEQUENCE: FISH COLLECT TOXIN IN GILLS, SO LIMIT FISH CONSUMPTION SF CHRON 030506 Euglenophyta can be algae or protozoa (unicellular) (Greek: eu = true/ glene = cavity) Habitat: aquatic Storage: paramylon e.g. Euglena sp Phototroph-->heterotroph motility with flagella flagella help move them to good growth conditions euglena can move like a snake (sinusoid) or be pulled by flagella mitochondria if grown in light, it will develop chloroplasts and photosynthesize--photoautotrophs; pigment from chloro. if no light, it will grow as a heterotroph; no pigment no chloro. Chlorophyta can be flagellated or not (unicellular & multicellular) (Greek: Chloros = green, phyton = plant) all haveChlorophylls a & b/ carotenoid accessory pigments Green plants (chlorophyll a & b, and b-carotene)/starch can be both 4 different groups Unicellular: Chlamydamonas sp Filamentous: Branched: Chladophora sp Unbranched: Spirogira sp Colonial: Volvox sp /Pandorina sp Hydrodicton sp Desmids: Closterium sp/Microsterias sp is the storage material Unicellular: Chlamydamonas sp horseshoe shaped, two flagella coming out of the back have a photospot and a nucleus approx 10 micrometers could evolve into terrestrial plant and develop vasculature over millions of years Chlamydomonas life cycle will grow asexually (divide in 2 thru binary fission): create two individuals, two exact copies Occassionally, it will undergo reduction division; will form haploid organisms, two will joing and form a zygote and produce a new genetic individual sex...
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This document was uploaded on 02/25/2014 for the course MICROBIOLO 101 at San Jose State.

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