CELLS

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CELLS Powered By Docstoc
					Year 7




         3 November, 2011   1
1.   This PowerPoint has been set up for teaching & learning at West Wight Middle
     School. It is an ongoing project and will evolve with use.
2.   This file is placed on the Internet to allow students to access it themselves in
     home and school. I have therefore been careful to include any text or graphics
     from sources we are not licensed to use.
3.   Please refer to the PowerPoint Notes (shown in edit view) to give more
     information.




            3 November, 2011                                                            2
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Your teacher may set this as homework     1.         What are the main differences between plant and animal cells?
through the whole unit.                   2.         What is the function of the following parts in a cell?
                                                1.          The nucleus
                                                2.          The cell wall
INSTRUCTIONS
                                                3.          The cell membrane
1.  Copy & paste the questions onto             4.          The chloroplasts
    your own computer or flash drive.     3.         Why do animal cells not have chloroplasts?
2.  Work on the questions, one at a       4.         Why do the cells in plant roots not have chloroplasts?
    time.                                 5.         Some cells can live on their own. Give examples of single-celled organisms. Draw two
3.  Email your work directly to your                 and label the parts.
    teacher or print it and pass the      6.         Some cells have special purposes. Describe and explain the appearance and function of:
    print to your teacher.                      1.          Leaf cells
                                                2.          Root cells
                                                3.          Lung lining cells
RULES                                           4.          Brain cells
a)  Write from memory. Read, learn              5.          Red blood cells
    and write. Do not work directly             6.          Muscle cells
    from a book or internet text.               7.          White blood cells
b)  Never cut and paste from the          7.         Photosynthesis is a process that happens inside some plant cells. What two chemicals
    internet. This is NOT learning!                  are taken in and what chemicals are produced by photosynthesis?
                                          8.         Why are plant leaves thin and flat?
c)  Write answers using full sentences.
                                          9.         What is the cell wall of plants made from?
    Most answers will require more
                                          10.        How are new cells made?
    than one sentence to explain
                                          11.        What is it that’s different about sex cells?
    clearly.
                                          12.        Cells have parts inside called mitochondria where respiration takes place. What is
d)  If you use tables, diagrams and                  respiration? (No, it’s not breathing).
    drawings, write a caption to          13.        Some plant cells contain grains of starch. Explain where this starch has come from.
    explain what they are about.


     3 November, 2011                                                                                                                         4
Are you made of cells?




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   Microscope (one between two)
   Newspaper
   Sellotape
   Onion
   Prepared slides of cells
   BBC Science in Action disc 1: DVD - Life
    processes & living things Key Stage 3

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   Learn what cells are.
   Learn some important scientific words.
   See some cells using a microscope.




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   Get a microscope ~ one
    between two.
   Set it up.
   Your teacher will show
    you how to prepare a
    sample using sellotape.



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   Cells are packets of living material.
   Some cells live on their own.
   Some cells live together and are part of a
    multicellular organism.
   Let’s have a look at some plant cells.

                                    •Learn what cells are.
                                    •Learn some important scientific
                                    words.
                                    •See some cells using a
         3 November, 2011                                         9
                                    microscope.
       BBC Science in Action disc 1: DVD - Life
        processes & living things Key Stage 3 / Building
        blocks of life




•Learn what cells are.
•Learn some important scientific
words.
•See some cells using a
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microscope.
    Draw what you
    see.




•Learn what cells are.
•Learn some important scientific words.
                      3 November,         2011   11
•See some cells using a microscope.
       BBC Science in Action disc 1: DVD - Life
        processes & living things Key Stage 3 / Algae




•Learn what cells are.
•Learn some important scientific
words.
•See some cells using a
                   3 November,     2011                 12
microscope.
       Write to describe or explain what cells are.
       Make sure you have included your drawing of
        onion cells.
       Complete as homework.



•Learn what cells are.
•Learn some important scientific
words.
•See some cells using a
                   3 November,     2011                13
microscope.
                                          Bloggers homework:
                                          •Write to describe or explain
                                          what cells are.
                                          •Make sure you have included
                                          your drawing of onion cells.
                                          •You could prepare this at
                                          home by making notes or by
                                          using flash memory.

       Explain what cells are.
       Included some examples.
       If possible, scan your own drawings.




•Learn what cells are.
•Learn some important scientific
words.
•See some cells using a
                   3 November,     2011                           14
microscope.
What do we know about cells?
How did we get this knowledge?




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   A4 poster paper. Preferably not white. 10 sheets.
   A4 photocopy paper. 10 sheets.
   Thick felt pens.
   DVD: BBC Class clips 1.
   Coloured diagrams of animal cells (laminated or
    in study guide)


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                               What will you learn today?




   What are cells?
   What do cells look like?




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   VIDEO
   DVD: BBC Class Clips 1. Cells. Use
    clip 2 (death by design).

This video shows something of the discovery of
  cells, what they look like and introduces the
  difference between plant and animal cells.



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   What are animal cells like?
   Use felt pens and a sheet of A3 paper.
   Build up a very large diagram of an animal cell,
    showing all the bits. Use a computer to print and
    add labels.

                                    OBJECTIVES
                                    What are cells?
                                    What do cells look like?
         3 November, 2011           What do cells do?          19
   There are many different types of animal cell.
    Use books and/or the internet to find different
    animal cells. [brain cells, white blood cells, red
    blood cells, skin cells, etc.]
   Assemble cut-out different animal cells on a A3
    sheet. Add notes about the jobs these cells do
    and how they are adapted to these jobs. These
    sheets will be used for display and could be done
    on a computer.
   Bloggers: You could do this on screen using suitable diagrams
    from the internet.
           3 November, 2011                                         20
   Sharing each group’s
    product.




         3 November, 2011   21
   Title: What are cells and what do cells look like?
   Draw a diagram of an animal cell in your book.
   Label the important parts:
       Nucleus
       Cell membrane
       Cytoplasm
       Mitochondria
                                            Boggers next slide

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   Title: What are cells and what do cells look like?
   Import a clear and simple diagram of an animal
    cell.
   Label the important parts:
       Nucleus
       Cell membrane
       Cytoplasm
       Mitochondria
   Add text to describe what the slide is about.
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What do the parts of an animal cell do?




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   What do the parts of a cell do?
   Can you describe and explain in detail?




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   You will discover a lot of detail about what cells
    do.
   You will work on how to write clearly to show
    your knowledge and understanding in detail.
   You will work on how to write in a scientific style.




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   BBC Science in Action disc 1: DVD - Life
    processes & living things Key Stage 3 / CELLS /
     Dividing and multiplying
     Human cells




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   What do we now understand about cells?
   What questions do we need to ask?




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   Work in pairs to make a list of the important
    information about cells.
   Share your list with the class.




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   Change your list if you need to.
   Work in pairs to write what you know about each
    thing on the list.




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We will now share the work you have done with the
  rest of the class. You will give marks out of 3 for
  each of the following:
 Clear sentences that make sense.

 Good knowledge of the facts.

 Clear explanation.




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   Improve your writing so that it’s top quality.
   Produce your report in your book or on your blog.
   Complete as homework.




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Are plant cells different?




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   Whiteboards, pens & erasers
   Templates for making model plant cells
    (photocopied on card)
   Felt pens and colouring pencils.




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   Work in a team of four.
   What are the differences between plant and
    animal cells?
   Report to the class. Who’s done well?




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   Making a model plant cell from a template.




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   Write three things you learnt today.
   Write one thing you would like to know more
    about.
   Write one thing you didn’t really understand.




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