Living or Nonliving?

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Living or Nonliving?
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Pasteurs Experiment
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Francesco Redis Experiment
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1.) What is the theory of biogenesis?

• States that living things come only from other
  living things.

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2.) What are 6 common characteristics of living
things? Living things . . .

• 1.) have cells.
• 2.) sense and respond to change
• 3.) reproduce
• 4.) have DNA
• 5.) use energy
• 6.) Grow and develop

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3. What is a cell?

• A cell is a membrane-covered structure that
  contains all the materials needed for life.
• An organism can have anywhere from one cell to
  trillions of cells.

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PROKARYOTIC CELL
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EUKARYOTIC CELL

• PLANT or ANIMAL

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A PLANT CELL
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ANIMAL CELL
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4.) How do they respond to change?

• Through a stimulus a change in the organisms
  environment that affects its activity.
• Through homeostasis organisms ability to
  maintain a stable internal environment.

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STIMULUS
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HOMEOSTASIS

• What happens when your body gets too hot?

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5.) How do living things reproduce?

• Through asexual reproduction single parent
  produces offspring identical to parent.
• Through sexual reproduction requires two
  parents to produce offspring that shares
  characteristics of both parents.

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6. What is DNA in living things?

• DNA (Deoxyribonucleic acid) hereditary material
  that controls all function of the cell.
• Heredity passing down of characteristics from
  one generation to the next.

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DNA
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HEREDITY
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7. How do living things use energy?

• They use energy to carry out lifes activities.
• Metabolism is the total of all chemical
  activities.

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METABOLISM
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8. How do they grow and develop?

• Single celled organisms grow by the cell getting
  larger.
• Multi-celled organisms grow by increasing the
  number of cells.

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SIMPLE BARE NECESSITIES of LIFE
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1.) What are the basic necessities for all
organisms?

• a.) Food
• b.) Water
• c.) Air
• d.) Living Space

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2.) What does food provide?

• Food provides organisms with energy and materials
  to carry on life processes.

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3.) Why are producers named producers?

• Producers produce their own food.
• Ex. Plants use energy from the sun to make food
  from water and carbon dioxide.

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4.) What are consumers?

• Consumers must eat (consume) other organisms to
  get food.
• A salamander is a consumer because it gets the
  energy it needs by eating insects and other
  organisms.

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5.) What are decomposers?

• Decomposers are organisms that get their food by
  breaking down the nutrients in dead organisms.

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6. How much water makes up cells?

• 70 of cells are made up of water.

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7. What elements make up air?

• Different gases including oxygen and carbon
  dioxide.
• Organisms on land get oxygen from the air.
• Organism in water obtain dissolved oxygen or come
  to the surface.

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8. Whats important about where you live?

• It must contain all of the things organisms need
  to survive.
• Because space is limited, some organisms compete
  with each other for food, water, and other
  necessities.