BacteriaBacteriaand Protistsand Protists

Ms. DunnMs. DunnForestbrook MiddleForestbrook Middle

Academic Standard 7-2.3Compare the body shapes of bacteria (spiral, coccus, and

bacillus) and the body structures that protists (euglena, paramecium, amoeba) use for food gathering and

locomotion.

What do I need to know?What do I need to know?

Be able to classify Be able to classify bacteriabacteria by their by their shapeshape and and protistsprotists (euglena, (euglena,

paramecium, amoeba) by the way paramecium, amoeba) by the way they they move and gather food.move and gather food.

Bacteria are in the kingdom…..Bacteria are in the kingdom…..

MONERA!!!!

Bacteria are:Bacteria are:

One-celled organisms.One-celled organisms. Categorized by their shape!!!!!Categorized by their shape!!!!!

There are 3 basic bacterial There are 3 basic bacterial shapes in the Kingdom Monerashapes in the Kingdom Monera

1.1. Round – referred to as cocci Round – referred to as cocci

2. Rod Shaped- known as bacilli 2. Rod Shaped- known as bacilli

3. Spiral – corkscrew shaped; 3. Spiral – corkscrew shaped; known as spirillaknown as spirilla

What do they look like What do they look like and where do they live?and where do they live?

bacteria Simplest bacteria Simplest organisms.asxorganisms.asx

(3 min. 39 sec.)(3 min. 39 sec.)

How do we know they exist?How do we know they exist?We tapped their phone lines!!!We tapped their phone lines!!!

science and bacteria (scientists).asxscience and bacteria (scientists).asxOkay, so we might need them for oil!Okay, so we might need them for oil!

Why don’t we destroy them?Why don’t we destroy them?Intro to Bacteria.asxIntro to Bacteria.asx

ProtistsProtists Protists are organisms that are Protists are organisms that are

classified into the kingdom classified into the kingdom ProtistaProtista. .

There is a lot of variety within There is a lot of variety within the protists, they do share some the protists, they do share some common characteristics. common characteristics.

All protists:All protists:

•Have a nucleus with a Have a nucleus with a nuclear membranenuclear membrane•Are usually one-celledAre usually one-celled•Live in moist environments Live in moist environments

Protists are grouped by Protists are grouped by the way they the way they movemove and and

obtain foodobtain food.. Examples: Euglena, Paramecium & Examples: Euglena, Paramecium &

AmoebaAmoeba EuglenaEuglena- - Have a flagellaHave a flagella Move by pulling themselves with Move by pulling themselves with

their flagellatheir flagella characteristics of both plant and characteristics of both plant and

animal; contains chloroplasts that animal; contains chloroplasts that photosynthesize and can consume photosynthesize and can consume other organisms.other organisms.euglena 43 euglena 43

sec.asxsec.asx

2. 2. Protists with CiliaProtists with Cilia (ex. (ex. Paramecium)Paramecium)

Move by beating (flapping) Move by beating (flapping) tiny hair-like structures tiny hair-like structures called called ciliacilia

Cilia act as tiny oars that Cilia act as tiny oars that allow the protist to move allow the protist to move through its watery through its watery environment.environment.

Cilia also beat and help to Cilia also beat and help to capture foodcapture food

3. 3. Protists with PseudopodsProtists with Pseudopods (ex. (ex. amoeba)amoeba)

Move by extending part of their Move by extending part of their bodies forward and then pulling bodies forward and then pulling the rest of their bodies forwardthe rest of their bodies forward

Pseudopods- (false feet) finger-Pseudopods- (false feet) finger-like structures that they project like structures that they project forwardforward

also used to trap foodalso used to trap food

Observe how they move…Observe how they move…

The Protist (7 min.clip)The Protist (7 min.clip) video clips\The Protists 7 min.asxvideo clips\The Protists 7 min.asx

Movement of ProtazoaMovement of Protazoa movement of protazoa 1 min 31.asxmovement of protazoa 1 min 31.asx

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