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Characteristics of life

Characteristics of life. Complex molecular organization that make-up cells to organ systems Heredity is based upon a genetic code The species changes over time Metabolism Response to a stimuli Reproduction Development / growth Homeostasis. Characteristics of life.

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Characteristics of life

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  1. Characteristics of life • Complex molecular organization that make-up cells to organ systems • Heredity is based upon a genetic code • The species changes over time • Metabolism • Response to a stimuli • Reproduction • Development / growth • Homeostasis

  2. Characteristics of life • Complex molecular organization • 4 types in living things • Carbohydrates • sugar, starch, cellulose • Proteins • enzymes, collagen, keratin • Lipids • Fats, phospholipids • Amino acids • twenty common acids • building blocks of proteins

  3. Characteristics of life • Hierarchical organization From the simple to the complex • Atoms • Molecules • Organelles • Cell • Tissue • Organ • Organ System

  4. Characteristics of life • Metabolism • Using chemical energy to • grow, repair, synthesize reproduce • Photosynthesis • binding energy from the sun • plants, algae, some bacteria • Cellular respiration • liberating energy • Animals and plants

  5. Characteristics of life • Reproduction • sexual reproduction • egg and sperm = embryo • asexual reproduction • one cell divides into two • Development / Growth • changes throughout lifetime • Heredity • passing on characteristics • genetic material • DNA

  6. Characteristics of life • Homeostasis • Maintain the body’s internal system • Response to a stimuli • Movement caused by a response to an outside factor or stimulus.

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