Kingdom Protista
Kingdom Protista
Kingdom Protista
Create successful ePaper yourself
Turn your PDF publications into a flip-book with our unique Google optimized e-Paper software.
Phylum Chrysophyta - Diatoms and Golden Algae<br />
Diatoms are photosynthetic, unicellular organisms<br />
Double shells of silica - Resemble box with lid<br />
Use chlorophylls a and c, and carotenoids<br />
fossilize well - thick sediments of fossil<br />
diatoms are called “diatomaceous earth”<br />
Some move by secretions from shell<br />
Asexual reproduction separates shell halves<br />
each half produces new shell within old<br />
one - become smaller with each division<br />
Have gametic meiosis - cells are diploid<br />
and produce sperm or eggs by meiosis<br />
Golden Algae - use yellow and brown carotenoid pigments, and<br />
xanthophyll accessory pigments<br />
Unicellular, two flagella, often colonial, common in freshwater<br />
Form resistant cysts when ponds dry out in summer