DO NOW!! Name three things you must do when drawing a biological drawing What are some rules of...
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DO NOW!! Name three things you must do when drawing a biological drawing What are some rules of using a microscope Name two differences between a plant and animal cell MAH 2011
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Transcript of DO NOW!! Name three things you must do when drawing a biological drawing What are some rules of...
MAH 2011
DO NOW!!
Name three things you must do when drawing a biological drawing
What are some rules of using a microscope
Name two differences between a plant and animal cell
MAH 2011
DO NOW- Finish the following
Palisade cells in leaves are packed with chloroplasts.....
Root hair cells have long extensions for....Muscle cells are packed with
mitochondria.....Intestinal cells have many extensions.....
MAH 2011
Cells in focus???
• ALWAYS in pencil• Quarter page in size• Keep it simple• No hashed lines• No colour• No shading• Labels• Write the magnification
MAH 2011
HOMEWORK
What is the difference between a light microscope, transmission electron microscope, and scanning electron microscope??
MAH 2011
AIMS FOR TODAY
I need to know what you knowAnimal vs Plant Cells (hand out/cut out/
stick in)What are organelles?Functions of organelles
MAH 2011
TEST
MAH 2011
CELLS12 Bio – MAH 2010
MAH 2011
MAH 2011
MAH 2011
CELLS ...
Occur universally and are the basic units of living organisms
201 different cell types
MAH 2011
Cells – What are they?
Brainstorm – what do you know about cells already??
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Cells are the basic building blocks of life.
All living things consist of at least one or more cells.
MAH 2011
Some organisms have many cells…
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MAH 2011
…and some organisms are made from only one cell.
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Living things
Prokaryotes“Before the nucleus”
No nucleusSingle, circular chromosome
No membrane bound organellesSmall cells
Eukaryotes“True nucleus”
Contain a nucleusLinear chromosomesContain organelles
Larger cells
Viruses
Bacteria Protists Plants AnimalsFungal cells
MAH 2011
Biozone - Types of living things is an excellent representation of living things and how they are separated into prokaryotes and eukaryotes
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MAH 2011
MAH 2011
ORGANELLES - STRUCTURES
Organelles are “little organs” – structures with particular functions within cells
You need to know the function of the organelles and differences in what organelles there are in plant cells, animal cells, and unicellular orgs (e.g. Paramecium)
MAH 2011
Make a Cell
Plant cell we will make and copy into your notes
Copy animal cell into your notes and label
Leave two full pages in your notes for functions◦ Cell membrane, mitochondria, nucleus, endoplasmic reticulum (smooth
and rough), Golgi bodies, cytoplasm, chloroplasts, cell wall, vacuole, cilia, flagella, lysosomes, ribosomes, centrioles, contractile vacuoles, eyespot, anal pore, oral groove
MAH 2011
To Do:
Using the handout from Mrs H you need to fill this out
In pairs or groups of three to speed the process up
Then copy into your books the graphic organiser from the next slide
MAH 2011
Organelles
Organelles are “little organs” – structures with particular functions within cells
Organelles common to all eukaryotic cells:◦ Nucleus◦ Ribosomes◦ Cell membrane◦ Cytoplasm◦ Mitochondria
Use the text to find the functionof each of these organelles.
Include a sketch of the organelleto help you identify it later
MAH 2011
MAH 2011
Nucleus
Contains genetic material
Controls the functioning of the cell
Has pores so that things can enter and exit
MAH 2011
DO NOW!!
What did the pink/red lollies represent?What is another name for cell membrane?What is the function of the cilia?What is the function of the ribosomes?What is the function of the endoplasmic
reticulum smooth and rough?
MAH 2011
To Do!!
10 minutes draw some pictures for your table
If finished do Biozone
Rest of the lesson on cell types and unicellular organisms
MAH 2011
Mitochondria
Site of aerobic respiration
Produces much of the ATP (energy) for the cell
Two membranes
MAH 2011Plasma Membrane
1. Regulates the flow of materials in and out of the cell2. Receives signals from outside the cell and relays them to the inside3. Separates the cell and its contents from the environment
MAH 2011
Ribosomes
The site of protein synthesis
Often found associated with the endoplasmic reticulum
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Golgi Apparatus
Modifies, packages anddistributes proteins
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Cell Wall
Specific to plants
Made of cellulose
Provides support and strength
MAH 2011
Structure of plasma membranes
Contains lipids called phospholipids in two layers (a lipid bilayer)
Contains cholesterolContains integral membrane proteins:
◦ receptors for hormones◦ transport proteins (ion channels etc.)◦ structural proteins
Forms a semi-permeable barrier for the transport of materials due to the nature of the phospholipids in the membrane
MAH 2011
Structure of a plasma membrane
MAH 2011
Structure of a plasma membrane
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Plasma Membrane
Important for cell processes
MAH 2011
Cell Specialities
