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Characteristics of life

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  • What is circulation?
    The movement of materials throughout an organism.
  • What is synthesis?
    The creation and breaking down of molecules for the organism's use.
  • What is the smallest unit of life?
    cell
  • What does reproduce mean?
    Organisms make offspring
  • What is the building block of life?
    Cell
  • What is metabolism?
    The sum total of all life processes, including all chemical reactions in the body.
  • change that occur in an organism during its lifetime
    Growth and development
  • What is an organism?
    A living thing that can function independently.
  • During ___________ conditions inside our body are kept stable (the same).
    homeostasis
  • True or False. ALL organisms reproduce sexually.
    False
  • What are the two types of reproduction?
    Asexual and sexual reproduction
  • What is the primary function of the excretion process in living orfganisms?
    To remove metabolic (cellular) waste from cells
  • True or False. All living things respond to changes in their environment.
    True
  • An organism’s ability to Maintain steady internal conditions when outside conditions change
    Homeostasis
  • What is aerobic respiration?
    The process of releasing energy from food using oxygen.
  • Name one characteristic of living things.
    Living things use energy, grow, reproduce, respond to their environment, or are made of cells.
  • The process of respiration in living organisms can be classified as:
    Only aerobic in all organisms
    Either aerobic or anaerobic depending on the organism
    Only occuring in plant cells
    Always require carbon dioxide
  • What is metabolism in terms of living organisms?
    The total of all chemical reactions and life processes.
  • What is homeostasis?
    Maintaining a constant internal environment regardless of external conditions.
  • What distinguishes autotrophs from heterotrophs in terms of nutrition?
    autotrophs-self feed; heterotrophs-eat
  • True or False. Asexual reproduction requires two parents.
    False
  • Give an example of excretion.
    Removal of wastes like urine, sweat, or carbon dioxide.
  • What is anaerobic respiration?
    The process of releasing energy from food without oxygen.
  • Homeostasis for living organisms means...
    internal environment stays the same when external changes
  • The scientific name for something living is a(an)?
    organism
  • Why do organisms need nutrients?
    To obtain energy and materials for growth and cell repair.
  • Define nutrition.
    The process of obtaining and utilizing food.
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