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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. DO NOW!!. Palisade cells in leaves are packed with chloroplasts..... Root hair cells have long extensions for....
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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 DO NOW!! MAH 2011
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..... DO NOW- Finish the following MAH 2011
ALWAYS in pencil • Quarter page in size • Keep it simple • No hashed lines • No colour • No shading • Labels • Write the magnification Cells in focus??? MAH 2011
What is the difference between a light microscope, transmission electron microscope, and scanning electron microscope?? HOMEWORK MAH 2011
I need to know what you know • Animal vs Plant Cells (hand out/cut out/ stick in) • What are organelles? • Functions of organelles AIMS FOR TODAY MAH 2011
TEST MAH 2011
CELLS 12 Bio – MAH 2010 MAH 2011
Occur universally and are the basic units of living organisms • 201 different cell types CELLS ... MAH 2011
Brainstorm – what do you know about cells already?? Cells – What are they? MAH 2011
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… MAH 2011
Living things Viruses Prokaryotes “Before the nucleus” No nucleusSingle, circular chromosome No membrane bound organelles Small cells Eukaryotes “True nucleus” Contain a nucleus Linear chromosomes Contain organelles Larger cells Plants Protists Fungal cells Bacteria Animals MAH 2011
Biozone - Types of living things is an excellent representation of living things and how they are separated into prokaryotes and eukaryotes MAH 2011
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) ORGANELLES - STRUCTURES MAH 2011
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 Make a Cell MAH 2011
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 To Do: MAH 2011
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 Organelles MAH 2011
Contains genetic material Controls the functioning of the cell Has pores so that things can enter and exit Nucleus MAH 2011
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? DO NOW!! MAH 2011
10 minutes draw some pictures for your table • If finished do Biozone • Rest of the lesson on cell types and unicellular organisms To Do!! MAH 2011
Site of aerobic respiration Produces much of the ATP (energy) for the cell Two membranes Mitochondria MAH 2011
1. Regulates the flow of materials in and out of the cell 2. Receives signals from outside the cell and relays them to the inside 3. Separates the cell and its contents from the environment Plasma Membrane MAH 2011
The site of protein synthesis Often found associated with the endoplasmic reticulum Ribosomes MAH 2011
Modifies, packages anddistributes proteins Golgi Apparatus MAH 2011
Specific to plants Made of cellulose Provides support and strength Cell Wall MAH 2011
Contains lipids called phospholipids in two layers (a lipid bilayer) • Contains cholesterol • Contains 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 Structure of plasma membranes MAH 2011
Structure of a plasma membrane MAH 2011
Structure of a plasma membrane MAH 2011
Important for cell processes Plasma Membrane MAH 2011
Cell Specialities MAH 2011
