The Magical world of Protists Most are Unicellular

The Magical world of… Protists

Most are Unicellular Have to use a microscope to see them…….

Compound Microscope

Eyepiece 10 x Lens 20 x Lens x Eyepiece= Magnification 10 x 200 x 10 x 400 x

Some Favorites

Protist Basics! Eukaryotes Nucleus Mitochondria Cell Membrane Ribosome Vacuole Sometimes…. . Organelles Cell Wall Chloroplast Flagella Cilia

We’ve all got to breathe and eat!!! Protists can absorb their food and oxygen right through their cell membrane

Pseudopodia • Means “false foot” • Part of the Protist’s body extends or reaches out to help it move or catch food. • Example: Amoeba

Some Protists have chloroplasts like a plant and make their own food like the Euglena

Eyespot • Euglena have eyespots which allow them to sense light • Allows organism to “see” food or predators

Cilia • Small Hairs used for movement or in feeding

We’ve all got to eat!!! And…expel… Oral Groove and Anal Pore Food goes in Oral Groove, digested by a vacuole, leaves through anal pore.

Contractile Vacuole • An organelle that helps the cell maintain water balance.

Protists often reproduce by Binary fission This is when they divide in two

Gettin’ Jiggy with it!!! Nah Nah Phototaxis Movement towards the light Ex. Euglena move towards the light to do photosynthesis

Gettin’ Jiggy with it!!! Nah Nah Chemotaxis Moving towards or away from a chemical Examples: Moving away from a dangerous chemical Moving towards food

Now isn’t all that just CRAZY!? !? !? !