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Explore the fundamental aspects of life, including cells, genetic code, reproduction, growth, metabolism, response to the environment, internal balance, and evolution. Discover what makes living organisms unique and how they survive and thrive in their surroundings.
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CHARACTERISTICS of LIFE JRMG 2009
Made up of cells • lowest structural level • unicellular or multicellular • prokaryotic or eukaryotic • plant or animal
Based on Genetic code • what is DNA? • Units of inheritance • Double stranded • With four nucleotides • (Guanine, Adenine, Thymine, Cytosine)
Reproduce • Proliferation of species • Asexual vs. Sexual reproduction
Obtain and use materials for energy • Metabolism Types • Anabolism • Involves putting together • Simpler to complex substance • PHOTOSYNTHESIS • Catabolism • Complex to simple substances • Release of energy • DIGESTION
Response to the environment • Stimulus • anything in the environment that causes an organism to react • Light, Temperature, Odor , Sound, Gravity, Heat , Pressure
Maintain internal balance • Homeostasis • process by which organisms respond to stimuli in ways that keep conditions in their body suitable for life