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Class Topics

Hand in Lab Skills 1 to the appropriate tray before the bell rings Review Lab Safety Lab Equipment Metric System Lab equipment Notes – Characteristics of Living Things, Organization of Living Things

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Class Topics

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  1. Hand in Lab Skills 1 to the appropriate tray before the bell rings Review Lab Safety Lab Equipment Metric System Lab equipment Notes – Characteristics of Living Things, Organization of Living Things “Discovery consists of seeing what everybody else has seen and thinking what nobody has thought.” Albert von Szent-Gyorgyi To review lab safety and the metric system. Begin learning lab equipment and about living things. Title: Biology 8/22/06 Class Topics Objectives: Handout Characteristics of Living Things GO Monday, October 21, 20195:20 AM

  2. Class Assignments What By When • Lab skills 1 8/22/06 • Read Lab Safety Handout 8/22/06 • How are SI length measurements made? 8/24/06 • Lab Safety and Equipment quiz 8/28/06 • Due this class period • Due next class period • Due in the future

  3. Grade Sheet

  4. Lab Safety Review • Identify the rules most important in biology class • Identify the location of the safety equipment in the classroom!

  5. Lab Equipment Review • Identify the equipment used most often in biology class • Metric System Review • “How are SI length measurements made?” • Need a metric ruler to complete this!

  6. What Are Characteristics of Life? (7) • Cells • Reproduce • Obtain and use energy • Homeostasis • Heredity • Evolution • Interdependence

  7. Cells • 1 celled • unicellular • examples - Amoeba, Paramecium, Euglena, bacteria • many celled • multicellular • humans have 100,000,000,000,000 From: http://www.microscopy-uk.org.uk/mag/indexmag.html?http ://www.microscopy-uk.org.uk/mag/artdec02/wdmount2.html From: http://www.3dham.com /microgallery/amoebab.html From: http://www.jaurich-online.de /Mikroskopie/bildbeispiele.htm

  8. From:http://www.texarkanacollege.edu/~mstorey/1407/histology.htmlFrom:http://www.texarkanacollege.edu/~mstorey/1407/histology.html From:http://www.texarkanacollege.edu/~mstorey/1407/histology.html From:http://www.texarkanacollege.edu/~mstorey/1407/histology.html From: http://www.microscopy-uk.org.uk/mag/indexmag.html?http ://www.microscopy-uk.org.uk/mag/artdec02/wdmount2.html

  9. Reproduce • Gain new individuals • Sexual (2 parents) • Asexual (1 parent) • Failure for species to reproduce is called…? • extinction

  10. Metabolism • The sum of all chemical reactions carried out in an organism • The ability of the body to use energy • Plants obtain energy from the sun (manufacture their food) • Autotroph • Animals and other living things obtain energy from plants or other animals (other than the sun) • Heterotroph

  11. Flow of energy • Energy flow • Sun • Autotroph • Heterotroph • Plant eater • Heterotroph • Animal eater

  12. Homeostasis • Maintaining a stable internal environment • Responding to external factors • Examples • Cold • Hot

  13. Heredity • Pass on traits to offspring • Gene • Basic unit of heredity • Composed of DNA • Deoxyribonucleic acid • Changes to heredity • Mutation • Most harmful, others helpful • Sickle cell anemia

  14. Heredity • Mutations (cont.) • Germ cells • Egg and sperm cells (affects offspring) • Somatic cells • Body cells (affects individual)

  15. Evolution • Change in the inherited traits of species over generations • Species – genetically similar organisms that can have fertile offspring • Natural selection • Organisms with favorable genes produce more offspring • More likely to survive

  16. Interdependence • Organisms live and interact with others and their environment • Same species and other species • Ecology • Branch of science that studies interactions of organisms and their environment

  17. Video Clips • The Characteristics of Living Things • Characteristics of Living Things (TLC)

  18. Organisms Cells Homeostasis Interdependence Heredity Metabolism Reproduction Evolution

  19. Organization • Atoms • Molecules • Organelles • Cells • Tissues • Organs • Systems

  20. Organization • Organisms • Populations • Communities • Ecosystems • Biome • Biosphere - life zone of all living things 8km up and 8km down

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