Unit: Roots of Life Chapter 1, Section 1

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lcayward
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227930
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Unit: Roots of Life Chapter 1, Section 1
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2013-07-23 12:12:32
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Science Gr. 6
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  1. ORGANISMS
    living things
  2. 6 CHARACTERISTICS OF ALL LIVING THINGS

    (try to create a mnemonic device like a phrase you'll remember that uses the first letter of every characteristic: ex:
    Carl Carries Red Umbrellas while eating Red Grapes.
    • 1. cellular organization
    • 2. contains similar chemicals
    • 3. respond to their surroundings
    • 4. use energy
    • 5. grow and develop
    • 6. reproduce
  3. Cell
    Basic unit of structure and function in an organism
  4. UNICELLULAR ORGANISM
    single celled organisms such as bacteria which is the most abundant organism on the earth
  5. MULTICELLULAR ORGANISM
    organisms composed of many cells.Specialized cells do certain tasks i.e.. muscle/nerve cells
  6. CHEMICALS
    what all cells of living things are composed of
  7. WATER
    the most abundant chemical found in cells
  8. THE 2 CHEMICAL BUILDING MATERIALS OF CELLS
    1. proteins

    2. lipids
  9. NUCLEIC ACIDS
    the genetic materials or the instructions that direct a cell's activities.
  10. WHY CELLS NEED AND USE ENERGY
    cells need energy to do what living things do such as grow and repair injured parts
  11. WHAT IS A STIMULUS? 

    GIVE EXAMPLES
    a change in an organism's surrounding that causes the organism to react

    examples:  light, sound, temperature, ball flying at your face
  12. WHAT IS A RESPONSE

    GIVE EXAMPLES
    an action or change in behavior based on the stimulus

    examples: jump for a fire drill, duck out of the way of the ball coming at you
  13. WHAT IS THE DIFFERENCE BETWEEN GROWTH AND DEVELOPMENT?
    growth:  the process of becoming larger

    development: process of change that occurs during an organism's life to produce a more complex organism
  14. REPRODUCE
    to produce offspring that are similar to parents
  15. SPONTANEOUS GENERATION
    the MISTAKEN idea that living things can arise from non living things

    example: Garbage (non living) does not create maggots.  Flies (living) are attracted to garbage and lay eggs which become maggots.
  16. CONTROLLED EXPERIMENT
    two tests that are identical in every way EXCEPT for 1 factor called the manipulated variable
  17. MANIPULATED VARIABLE
    the one change in a controlled experiment
  18. FRANCESCO REDI
    designed a controlled experiment that proved flies do not spontaneously arise from decaying meat
  19. LOUIS PASTEUR
    French chemist that proved bacteria arise only from existing bacteria
  20. 4 BASIC NEEDS OF ALL LIVING THINGS
    • 1. food (energy)
    • 2. water
    • 3. living space
    • 4. stable internal conditions
  21. AUTOTROPHS
    organisms that make their own food

    auto:  self          troph: food

    example:  plant
  22. HETEROTROPHS
    organisms that cannot make their own food

    hetero: other

    example: humans
  23. HOMEOSTASIS
    the ability to maintain stable internal conditions.  Keeps internal conditions just right for cells to function.

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