Sunday, January 18, 2009
ZE BIBLIOGRAPHY (mostly just pictuer searches i did on google =D )
http://www.slideshare.net/mrskennedy/protist-notes
http://www.coleharbourhigh.ednet.ns.ca/library/images/bio11m21.gif
http://www.coleharbourhigh.ednet.ns.ca/library/images/bio11m22.jpg
http://www.biosci.ohio-state.edu/~eeob/new/webgallery3/images/amoeba.jpg
http://www.microscopy-uk.org.uk/mag/imgdec02/paramecium.jpg
http://nyms.org/Gallery/diatoms.jpg
http://www.gpmatthews.nildram.co.uk/microplants/spyrogyra002.jpg
http://www.designswan.com/wp-content/uploads/2008/slime_mold/slime_mold2.jpg
http://www.biology.neu.edu/images/redalgae.jpg
http://www1.istockphoto.com/file_thumbview_approve/1439011/2/istockphoto_1439011_brown_algae_seaweed_specimen.jpg
http://128.128.175.244/fedora/get/data:26015/LocalImage
http://www.microscopy-uk.org.uk/mag/indexmag.html?http://www.microscopy-uk.org.uk/mag/wimsmall/smal1.html
http://www.pclaunches.com/entry_images/0207/26/bacteria-dna.jpg
http://nanopedia.case.edu/image/water%20flea.jpg
http://campus.queens.edu/faculty/jannr/images/critters/ostracods.jpg
http://hudsonregional.org/mosquito/images/copepod.jpg
http://www.microscopy-uk.org.uk/mag/smallimag/cosci3.jpg
http://www.microscopy-uk.org.uk/index.html?http://www.microscopy-uk.org.uk/ponddip/index.html
http://www.planet-pets.com/amoeba1.jpg
http://192.171.153.213/sci_programmes/Water/Lake%20Ecosystems/images/clip_image002.jpg
http://www.urbanrivers.org/web_images/diatoms.gif
http://www.mediterranea.org/cae/divulgac/peces/hydra.jpg
http://starcentral.mbl.edu/msr/rawdata/viewable/euglenatripteris_wbw.jpg
http://botit.botany.wisc.edu/Interface/web-lessons/Diversity/Chlorophyta/images/Spirogyra.jpg
http://www.gpmatthews.nildram.co.uk/animalcules/cypris02.jpg
http://www.lima.ohio-state.edu/biology/images/volvox.jpg
http://www.btinternet.com/~stephen.durr/volvoxc.jpg
http://water.me.vccs.edu/courses/ENV108/clipart/rotifer.jpg
http://www.ucmp.berkeley.edu/phyla/rotifera/philodina.jpg
http://www.hometrainingtools.com/images/942/250x225/ms-desmid.jpg?1227081449
http://microscopy.fsu.edu/primer/techniques/hoffmangallery/images/stentor.jpg
http://www.susq-town.org/hamsher/004%20Structure%20of%20a%20paramecium.jpg
http://www.wasdarwinright.com/images/Vorticellafeeds.jpg
Actinosphaerium (single-celled)
Where to find them : Planktonic and amongst plants (especially fine-leaved).
They have hair-like pseudopodia called axopodia (which are often stiffened) that radiate outwards. There are a number of smaller species e.g. in the genera Actinophrys and Acanthocystis.
Classification :Kingdom - Protoctista, Class - Heliozoa
** These remind me of dandilions for some reason.**
Vorticella (single-celled)
The 'bell' is up to 150 µm, with stalk up to 1 mm.
You can find them attached to algae and plants etc.
Vorticella are one of the peritrich protozoa. Although solitary, they often occur in groups to form a tiny jelly-like mass just visible to the naked eye. Their stalks contract like a spring (they remind me of a slinky). Some similar types e.g. Epistylis (not contractile) and Carchesium (contractile) are true colonies with branching tree-like stalks.
Classification : Kingdom Protoctista, Phylum Ciliophora
Paramecium (single-celled)
Stentor (single-celled)
You can find these dandy creatures attached to plants/algae and planktonic.
They are one of the largest freshwater protozoans and larger than some multi-celled pond animals. When it is attached to a surface, it adopts the trumpet shape shown and the ring of cilia around the trumpet rim draw in water, together with the smaller organisms on which the Stentor feed. When the Stentor swims it changes to an oval shape.
The Stentor is often green in colour because of the algae (single-celled plants) associated with it. Like other large single celled creatures (e.g. amoebas) they have many nuclei. In Stentor you can see the nuclei as a 'string of pearls'. The large sphere is a water expelling vesicle. The cell is covered with tiny hair-like 'cilia'.
Classification :Kingdom Protoctista, Phylum Ciliophora
Desmid (single-celled)
Their Size varies greatly amongst speciesca 10 µm - 1 mm.
Where to find them : Planktonic, or on vegetation, particularly neutral to acidic waters.
They are an attractive and varied group of algae. And although the species vary widely in shape, they share the feature of being divided into two equal halves (semicells) which are often mirror images. A distinct constriction between the two semicells or gap in the plastids is usually seen.
Classification :Kingdom - Protoctista, Phylum - Gamophyta
** They look like little leeches to me.. GROSS!**
Rotifers (multicellular)
Rotifer species show a wonderful variety of forms. Some move and contract like a leech (e.g. Philodina), others build 'houses'.
Volvox (single-celled, but colonial)
They are Planktonic in still and flowing waters.
Volvox is a spherical colony of hundreds of green algal cells each with two whip-like flagella. These cells are distributed on the surface of a hollow jelly-like globe. Sometimes the colony may contain smaller colonies. Volvox has features of both algae and protozoa, and is classified by some authorities as a green algae (Chlorophyta) and by others in the protozoan order Volvocida.
Cypris (multicellular)
Their size ranges from 0.5 - 3 mm.
You can find these creatures amongst aquatic vegetation and browsing the surface layers of bottom mud.
The body of an ostracod, including its head, is guarded by a bean-shaped shell (the carapace). Some of the smaller rounded water fleas (e.g. Chydorus) may be confused for an ostracod, but the shell of a water flea is usually much more transparent.
The ostracods, although quite easy to recognise, are often hard to identify further, because externally they all look rather alike!
Classification :Kingdom - Animalia, Phylum - Crustacea, Class - Ostracoda
Amoeba (single-celled)
Their size is normally 20 - 1200 µm
You can find these intersting creatures decaying organic matter e.g. on leaves and surface of bottom mud.
Although usually common, they're not always abundant, so casual pond dipping may not find them. Theie finger-like protusions (pseudopodia) are used for movement and feeding.
There are also testate amoeba which live in shells (tests) and also naked ameobas. Squeezings from Sphagnum moss may often contain examples of testate amoeba.
Classification :Kingdom Protoctista, Phylum Rhizopoda
Daphnia (multicellular)
You can find this amazing creature amongst plants, organic matter, or Planktonic etc.
Water fleas are very simple to find in a jar of pond water because of the jerky movements of their second antennae . Hence their common name, although they are not fleas.
The females often carry live young, which is really kool to watch.
Cyclops (multicellular)
You can find them amongst plants,organic matter, Planktonic etc.
The cyclops is one of the easiest creature to see and identify with a naked eye (pond creature that is..). The female often carries a pair of egg sacs and is a very fast and agile swimmer! t only has one eye and therefore it was named after the Greek mythological creature.
They are usually a drab green or brown but can be quite brightly coloured. Another common copepod Diaptomus has one egg sac, longer antennae, and long thin body.
Classification :Kingdom - Animalia, Phylum - Crustacea, Class - Copepoda
Diatoms (single-celled)
Diatoms have silica shells in two halves that fit together. The shell (the frustule) often has very fine structure (which is best seen in commercially prepared slides of diatoms).
Hydra (mlticellular)
Euglena
Spirogyra (single-celled) .... (STICKS)
Monday, January 12, 2009
Diatoms
The attack of the crusties.
CRUSTIES....(crustaceans)
Ciliates (hairy stuff) =)
FLAGELLATED PROTOZOA (IT HAS A TAIL or PROPELLER)
Bacteria taking over the world!
Saturday, January 10, 2009
Fun guys (fungus like protists) =]
- They Contain parasitic and predatory molds that produce spores
- Most are single-celled, decomposers in aquatic habitats
- Phagocytic slime molds live as singla amoeboid cells or aggregations of cells that migrate together and form spre producing structures.
- Acellular slime molds- help scientists sudy movement of protoplasm, form plasmodia at one point in life cycle
- Cellular slime molds- help scientists study how cells communicate, function, like a single, multicelled organism as one point in thier life cycle.
Random comment- mushrooms. i like them raw but i do not life them cooked. To me, they feel wierd when I chew them.
Plant- Like Protists
(Spyrogyra)
(Diatoms)
- Single celled
- Photosynthetic
- some are flagellated, luminescent
- May live freely or as colonies
- Phytoplankton- primary producers of oxygen
Euglenophyta- Euglena (autophic and heterotrophic)
Pyrrophyta- Dinoflagellates (luminescent, produce toxins that shellfish absorb-
dangerous= RED TIDE)
Chrysophyta- Diatoms, important component of marine plankton- food source for marine animals, silicon cell walls important component of detegents, polishes, and paint removers.
Random question- do these live in pools??
Animal--like protists aka "PrOtOzOaNs"....(Crazy I know!)
- Unicellular AND colonial
- Eukaryotic
- Heterophic
among several prokaryotes which lost the ability to live alone.
random comment: this is prettty kool =]
a) Ciliates: Motile, cilia, free living.
b) Flagellates: motile, flagella,reproduce asexually by binary fission and sexually.
EX: Trypanosoma- causes African sleeping sickness
d) Sarcodina: "false feet" pseudopods
**Disease- infection caused by many of these**