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LIFE PROCESSES

LIFE PROCESSES. NUTRITION. How an organism obtains and processes food The food is then used to make energy Ingest -take food in Digest -break down food Egest -get rid of undigested material Autotrophic Nutrition Organism makes its own food Ex. A plant, carrying out photosynthesis

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LIFE PROCESSES

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  1. LIFEPROCESSES

  2. NUTRITION • How an organism obtains and processes food • The food is then used to make energy • Ingest-take food in • Digest-break down food • Egest-get rid of undigested material • Autotrophic Nutrition • Organism makes its own food • Ex. A plant, carrying out photosynthesis • Heterotrophic Nutrition • Organism is a consumer and “eats” other organisms • Ex. All animals, fungi, amoeba and paramecium

  3. TRANSPORT • Absorption (materials are taken in) and circulation (materials move around) of materials within an organism • Can be inside a cell or inside the body • Materials such as • Oxygen • Water • Carbon Dioxide • Food

  4. CELLULAR RESPIRATION • Chemical process by which an organism obtains ENERGY (ATP) from food • Aerobic Respiration • Uses oxygen to release energy from food • Anaerobic Respiration • Does NOT use oxygen to release energy from food

  5. SYNTHESIS • Chemically combining simple substances to form a more complex substance. • Ex. Simple sugars bond to form complex sugars.

  6. REGULATION • Control and coordination of activities in the body. • The Brain • The Nervous System and Endocrine Systems help maintain

  7. EXCRETION • Getting rid of metabolic wastes • Ex. Carbon dioxide, excess salts and water

  8. GROWTH & REPRODUCTION • Growth • To increase in cell size or number of cells

  9. Reproduction • Making new organisms • Asexually: 1 “parent” • Ex. Single celled organisms • Sexually: 2 “parents” • Ex. Mammals, flowering plants IMPORTANT NOTE: A single organism DOES NOT have to reproduce to survive!

  10. METABOLISM • All of the chemical reactions in an organism that help to maintain homeostasis.

  11. ALL LIVING THINGS: • Are made of cells • Evolve • Require ENERGY • Require water • Maintain homeostasis in a changing environment • React and Respond to changes in the environment • Get rid of metabolic wastes • Interact with the environment and with other organisms

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