Summary: Biology Chapter 3

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PLEASE KNOW!!! There are just 77 flashcards and notes available for this material. This summary might not be complete. Please search similar or other summaries.

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  • 1 the microscope

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  • what are the ten things on a microscope

    1. tube

    2. revolving nose piece

    3. objectives

    4. stage clips

    5. diaphgram

    6. light

    7. eyepiece

    8. arm

    9. stage

    10. coarse and fine focus

  • 2 looking at cells

  • how many more cells are there in your body than people on earth

    10xx
  • what would be happen when a speciamen of cells would be not stained?

    they would be colourless and they are difficult to distinguish
  • 3 basic parts of a cell

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  • what do the groups of DNA molecules

    the combinations of the groups provide instructions for the cell to make chemicals to keep it alive or to build its cell parts.
  • say in short what cytoplasm is

    - watery jelly to fill up the cell with dissolved substance

    - it may contains stored food

  • say in a short sentece what a cell membrame is

    has pores where chemicala pass through

    keeps liquid inside

  • what does a cell membrane?

    it covers the outside of the cell

    dissolved substances such as food, oxygen and corbon dioxide can pass through the cell membrane

    some harmful chemicals are stopped from entering the cell by the memebrane

  • 4 parts found only in plant cells

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  • if you look through a microscope what are A: the green dotsB: the linesC: the coloured substance

    A: chloroplast

    B: cell membrane

    C: cytoplasm

  • say in a short sentence what the cell wall is

    - give support to a cell

    - made of cellulose

  • where can you find the cell wall

    the cell wall is found outside the membrane of a plant cell.
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