Unicellular Organisms. Lets Start With Cells Anyone remember what cells are? How about all those...

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Unicellular Organisms

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The Mighty Cell These tiny, microscopic things are pretty complex They need to be able to carry out all the life processes that we do, but on a microscopic level!

Transcript of Unicellular Organisms. Lets Start With Cells Anyone remember what cells are? How about all those...

Page 1: Unicellular Organisms. Lets Start With Cells Anyone remember what cells are? How about all those organelles that they have? …maybe we should review.

Unicellular Organisms

Page 2: Unicellular Organisms. Lets Start With Cells Anyone remember what cells are? How about all those organelles that they have? …maybe we should review.

Lets Start With Cells

• Anyone remember what cells are?• How about all those organelles that they

have?• …maybe we should review

Page 3: Unicellular Organisms. Lets Start With Cells Anyone remember what cells are? How about all those organelles that they have? …maybe we should review.

The Mighty Cell

• These tiny, microscopic things are pretty complex

• They need to be able to carry out all the life processes that we do, but on a microscopic level!

Page 4: Unicellular Organisms. Lets Start With Cells Anyone remember what cells are? How about all those organelles that they have? …maybe we should review.

The Mighty Cell

• Cells have specialized parts that carry out life functions in the same way that our organs do for us

• We call them…organelles!

Page 5: Unicellular Organisms. Lets Start With Cells Anyone remember what cells are? How about all those organelles that they have? …maybe we should review.

• Its similar to our brain

• Regulates and controls all of the happenings inside of the cell

• Contains the DNA

Page 6: Unicellular Organisms. Lets Start With Cells Anyone remember what cells are? How about all those organelles that they have? …maybe we should review.

The goo: Cytoplasm

• This is the goo that everything is suspended in• If things need to get transported, it goes

through the cytoplasm (Similar to our blood)

Page 7: Unicellular Organisms. Lets Start With Cells Anyone remember what cells are? How about all those organelles that they have? …maybe we should review.

The Barrier; Cell Membrane

• Keeps the insides in and the outsides out• Similar function as our skin

Page 8: Unicellular Organisms. Lets Start With Cells Anyone remember what cells are? How about all those organelles that they have? …maybe we should review.

The Structure; Cell wall• Similar to the membrane, except it is very

rigid and gives it a definite shape• Our skeletal system does kind of the same

thing• Cell wall also keeps insides in and outsides

out

Page 9: Unicellular Organisms. Lets Start With Cells Anyone remember what cells are? How about all those organelles that they have? …maybe we should review.

The Food Factory; Chloroplast

• Not all cells have this• Uses energy from the sun and CO2 to make

food!• How awesome would it be if we had

chloroplasts in our skin?...Think about it…

Page 10: Unicellular Organisms. Lets Start With Cells Anyone remember what cells are? How about all those organelles that they have? …maybe we should review.

The Packaging System: Endoplasmic Reticulum

• Can create proteins and gets them all ready to go where they need to be

• Surrounds the nucleus

Page 11: Unicellular Organisms. Lets Start With Cells Anyone remember what cells are? How about all those organelles that they have? …maybe we should review.

The Assembly Worker: Ribosomes

• They make proteins• Proteins are essential for all life, with out

them we wouldn’t be here…

Page 12: Unicellular Organisms. Lets Start With Cells Anyone remember what cells are? How about all those organelles that they have? …maybe we should review.

The Power House; Mitochondria

• Converts food into ENERGY!!

• ‘The Mighty Mitochondria’

• Kind of the opposite of the chloroplast

Page 13: Unicellular Organisms. Lets Start With Cells Anyone remember what cells are? How about all those organelles that they have? …maybe we should review.

The Storage: Vacuole

• Acts as a storage place. Can store food or other materials

Page 14: Unicellular Organisms. Lets Start With Cells Anyone remember what cells are? How about all those organelles that they have? …maybe we should review.

The Post Office; Golgi Apparatus

• Packages and labels materials for shipment

Page 15: Unicellular Organisms. Lets Start With Cells Anyone remember what cells are? How about all those organelles that they have? …maybe we should review.

The Stomach; Lysosome

• Contains Digestive juices that will break down food

Page 16: Unicellular Organisms. Lets Start With Cells Anyone remember what cells are? How about all those organelles that they have? …maybe we should review.

Ok, now that we know about cells…

• Lets talk about some single celled organisms!!

Unicellular Organisms

Bacteria DinoflagellatesDiatoms

Page 17: Unicellular Organisms. Lets Start With Cells Anyone remember what cells are? How about all those organelles that they have? …maybe we should review.

Bacteria

• Lack a nucleus and other organelles!! OMG THEIR SO SIMPLE!

• 3 different shapes– Rod, spiral and round

• Reproduce Rapidly!

Page 18: Unicellular Organisms. Lets Start With Cells Anyone remember what cells are? How about all those organelles that they have? …maybe we should review.

Bacteria Are Important

• Decay Bacteria– Feed on dead things– Recycles nutrients back to the environment– Lots of them found at the bottom of the ocean

Page 19: Unicellular Organisms. Lets Start With Cells Anyone remember what cells are? How about all those organelles that they have? …maybe we should review.

Bacteria Are Important

• Blue-Green (Cyano)Bacteria– Important Producers– Maybe the first photosynthetic organisms EVER!– Can produce Reef-like structures called

stromatolites!

Page 20: Unicellular Organisms. Lets Start With Cells Anyone remember what cells are? How about all those organelles that they have? …maybe we should review.
Page 21: Unicellular Organisms. Lets Start With Cells Anyone remember what cells are? How about all those organelles that they have? …maybe we should review.

Diatoms• Float near the surface

usually (that’s where the light is after all!)

• Important marine producers

• Come in a wide variety of shapes

Page 22: Unicellular Organisms. Lets Start With Cells Anyone remember what cells are? How about all those organelles that they have? …maybe we should review.

Diatoms

• Has a nucleus and other organelles

• Transparent cell wall lets light in

• Has 2 frustules that fit together• Spines and oil filled vacuoles

help keep the diatoms floating near the surface

Page 23: Unicellular Organisms. Lets Start With Cells Anyone remember what cells are? How about all those organelles that they have? …maybe we should review.

Dinoflagellates

• Quite Different! They can MOVE!!– They have 2 flagella that help them do this

• An eye spot helps them move towards the light

• Some are also bioluminescent

Page 24: Unicellular Organisms. Lets Start With Cells Anyone remember what cells are? How about all those organelles that they have? …maybe we should review.

Dinoflagellates

• They are photosynthetic, but they can also eat food!

• When a lot of them bloom they can cause red tides which can be dangerous for people and wild life

Page 25: Unicellular Organisms. Lets Start With Cells Anyone remember what cells are? How about all those organelles that they have? …maybe we should review.

Photosynthesis

Page 26: Unicellular Organisms. Lets Start With Cells Anyone remember what cells are? How about all those organelles that they have? …maybe we should review.

Microscope Review

• Scanning (red), focus with big knob• Low power (yellow), focus with big knob or

small knob• High power; SMALL KNOB ONLY!

Page 27: Unicellular Organisms. Lets Start With Cells Anyone remember what cells are? How about all those organelles that they have? …maybe we should review.

Stations

• Groups of 5 will rotate from station to station• 1 station is for prepping a slide to look at

(pondwater)• You will have 4 minutes for each station• You will sketch what you see on a sheet

resembling this;

Page 28: Unicellular Organisms. Lets Start With Cells Anyone remember what cells are? How about all those organelles that they have? …maybe we should review.

Diamtoms Dinoflagellates

Blue-green bacteria Pond water Critter

Page 29: Unicellular Organisms. Lets Start With Cells Anyone remember what cells are? How about all those organelles that they have? …maybe we should review.

Ticket Out;

• Create a Concept map for the next chapter (5)• Include all the major topics and subtopics in

the map• Homework: – Read the next chapter and take notes– Use connecting words/phrases on your concept

map for each connection