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Biology Class Topics Review: Lab Safety, Equipment, and Living Things

Review lab safety rules and equipment, explore characteristics of living things, organization in biology, and the metric system. Understand the importance of cells, reproduction, energy flow, heredity, metabolism, evolution, and interdependence.

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Biology Class Topics Review: Lab Safety, Equipment, and Living Things

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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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