Plantlike Protists: Unicellular Algae

Alex Gopar-PerezBiology

6th Period

Chlorophyll & Accessory Pigments

• Different forms of chlorophyll absorb different wavelengths of light.

• Chlorophyll & other pigments allow algae to collect and use energy from sunlight.

• Pigments allow algae to harvest & use the energy from sunlight.

Euglenophytes

• Euglenophytes are plantlike protists that have two flagella but no cell wall.

• Euglenophytes have no chloroplasts, but are similar to zoo flagellates.

• Euglenophytes contain an intricate cell membrane called a pellicle, which is folded into series of ribbon like ridges.

Dinoflagellates

• Dinoflagellates are classified into two groups have are photosynthetic, & the other half live as heterotrophs.

• Dinoflagellates reproduce by binary fission

• Dinoflagellates are the eukaryotes that do not contain histones.

• Dinoflagellates store genetic information in the form of DNA like all other oraganisms.

Chrysophytes

• Chrysophytes are a diverse group of plantlike protists that have golden colored chloroplasts.

• Chrysophytes usually include green and golden –brown algae.

• In the cell wall of a chrysophyte is included carbohydrate pectin instead of cellulose.

• Chrysophytes store food in the form of oil rather then proteins.

• Chrysophytes reproduce both asexually & sexually.

Bibliography • Miller, Kenneth R., and Joseph S. Levine. Prentice Hall Biology. Upper Saddle River, N.J.:

Pearson/Prentice Hall, 2008. Print. • "19.5 Accessory Pigments Funnel Energy Into Reaction Centers -- Biochemistry -- NCBI

Bookshelf." National Center for Biotechnology Information. Web. 31 Mar. 2010. <http://www.ncbi.nlm.nih.gov/bookshelf/br.fcgi?book=stryer&part=A2704>.

• "Image Result for Http://www.jochemnet.de/fiu/bot4404/Euglenophytes.gif." Google. Web. 31 Mar. 2010. <http://www.google.com/imgres?imgurl=http://www.jochemnet.de/fiu/bot4404/Euglenophytes.gif&imgrefurl=http://www.jochemnet.de/fiu/bot4404/BOT4404_14.html&h=567&w=453&sz=142&tbnid=SPnPr4I2_dz5vM:&tbnh=252&tbnw=201&prev=/images%3Fq%3Deuglenophytes%2Bpicture&hl=en&usg=__A77kzzMXdoGDM-Umzzj0kPDJteI=&ei=C7SzS8y3LYvYNujb4JYJ&sa=X&oi=image_result&resnum=1&ct=image&ved=0CAYQ9QEwAA>.

• "Image Result for Http://www.microscopy-uk.org.uk/mag/imgsep01/dino2.jpg." Google. Web. 31 Mar. 2010. <http://www.google.com/imgres?imgurl=http://www.microscopy-uk.org.uk/mag/imgsep01/dino2.jpg&imgrefurl=http://www.microscopy-uk.org.uk/mag/artsep01/dinof.html&h=391&w=450&sz=37&tbnid=AxV6743nY1CWTM:&tbnh=110&tbnw=127&prev=/images%3Fq%3Ddinoflagellates%2Bpicture&hl=en&usg=__42svYQ3ZYWTTDOJVd0wW2u8QVfU=&ei=rLSzS7ToDpLcM9izoPgJ&sa=X&oi=image_result&resnum=3&ct=image&ved=0CAoQ9QEwAg>.

• "MCM Dry Valley Chrysophyte Photos." MCM LTER Has Moved to Www.mcmlter.org. Web. 31 Mar. 2010. <http://huey.colorado.edu/LTER/images/pictures/lakes/plankton/chrysophyte.html>.