Introduction to life science
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This document outlines an introduction to life science course, including learning competencies, topic outline, and content about the characteristics of life, cells, theories on the origin of life, and unifying themes in the study of life such as cellular organization, energy and life, homeostasis, adaptation, and evolution. The course will cover the historical development of the concept of life, the origin of the first life forms, and connections among living things through structure, function, and interactions with the environment and each other.
Introduction to life science
- 2. Introduction to Life Science Ms. Donna Grace Herman Panacan National High School E&LPPT1
- 3. Learning Competencies The learners will be able to: •explain the evolving concept of life based on emerging pieces of evidence (S11/12LT- IIa-1) •describe classic experiments that model conditions which may have enabled the first forms to evolve (S11/12LT-IIa-2)
- 4. Learning Competencies The learners will be able to: •describe how unifying themes (e.g., structure and function, evolution, and ecosystems) in the study of life show the connections among living things and how they interact with each other and with their environment (S11/12LT-IIa-3)
- 5. Topic Outline This Chapter is divided into three: 1.Historical Development of the Concept of Life 2.Origin of the First Forms of Life 3.Unifying themes in Study of Life
- 6. Introduction to Biology by Frank Gregorio https://www.youtube.com/watch? v=7L7x0BAqWis
- 9. It is usually easy to recognize life, but it is often much harder to define it.
- 10. • Plants, animals, human beings, and microscopic organisms • Life Science vs. Biology Life Sciences
- 11. All living organisms are made up of cells.
- 14. Tutorvista.com 7 characteristics of life
- 15. Irritability able to respond to an environment stimulus. 7 characteristics of life
- 16. Responds to light by facing the sun https://fineartamerica.com/featured/bloomi ng-sunflower-in-the-blue-sky-background- tosporn-preede.html
- 17. Respond to heat.
- 18. Locomotion ability of an organism to move. 7 characteristics of life
- 22. Locomotion: •Protoplasm, the living part of the cell has an intercellular movement called Cyclosis. Tutorvista.com 7 characteristics of life
- 24. Metabolism refers to the sum total of chemical reactions taking place in an organism. Tutorvista.com 7 characteristics of life
- 25. Metabolism: Anabolism is a building up process shown by respiration. Tutorvista.com 7 characteristics of life
- 26. Growth is the increase in size and number. Intussusception. Tutorvista.com 7 characteristics of life
- 27. Reproduction is the ability of living things to produce new individuals closely resembling them. Tutorvista.com 7 characteristics of life
- 31. Cellular Organization refers to parts and functions of the cells in an organism. Tutorvista.com 7 characteristics of life
- 32. Adjustment, Integration, and Coordination refers to the ability of living organisms to live in harmony with other organism. Tutorvista.com 7 characteristics of life
- 33. Where did the first life come from?
- 34. Theories on the Origin of Life
- 35. Supreme Being Special Creation Theory
- 37. Spontaneous Generation Theory A theory where living organisms arise from non- living things
- 39. • Italian scientist • designed a scientific experiment to test the spontaneous creation of maggots by placing fresh meat in each of three different jars.
- 40. He successfully demonstrated that the maggots came from fly eggs and thereby helped to disprove spontaneous generation. Or so he thought.
- 42. VS. VS.
- 44. placing broth in each of two separate bottles, boiling the broth in both bottles, then sealing one bottle and leaving the other open.
- 45. Louis Pasteur
- 46. • notable French scientist • accepted the challenge to re- create the experiment and leave the system open to air.
- 47. • He subsequently designed several bottles with S-curved necks that were oriented downward so gravity would prevent access by airborne foreign materials
- 49. He reasoned that the contamination came from life-forms in the air. Pasteur finally convinced the learned world that even if exposed to air, life did not arise from nonlife
- 50. Biogenetic Theory Life begets life
- 52. Abiogenetic Synthesis Theory Progressive development from non living things
- 53. Other Theories on the Origin of Life
- 54. Ice protected the compounds allowing them to interact, creating life Beneath the Ice
- 55. Produce simple sugars and amino acids from simple elements LIGHTNING!
- 57. Ribonucleic acid (RNA) RNA World
- 58. Continuous reaction of molecules producing more molecules then creating life Simple Metabolism and Reactions
- 59. Alexander Graham Cairns Smith suggested that mineral crystals could have arranged organic molecules Clay breeding Ground
- 60. Nutrient-rich environment filled with reactive gases and catalysts, creates a habitat teeming with life. http://www.mbari.org/mbari- discovers-new-deep-sea- hydrothermal-vents-using-sonar- mapping-robot/ Submarine Hydrothermal Vents
- 61. The Evolution of Life http://youtube.com/watch? v=3rHXrA80NH4
- 62. Unifying Themes in the Study of Life
- 63. 1. Which is greater, the whole or the sum of its parts?
- 64. Biological Systems “The whole is greater than the sum of its parts”
- 65. 2. What are you made of?
- 66. Cellular Basis of Life • All organisms are made up of cell. • Specialized cell. Ex. Muscle cell, nerve cell • Level of organization: – Cell, tissue, organ, organ system, organism
- 67. 3. How does your body works?
- 68. Form and Function • As you explore the structure of life, you’ll discover the harmony of form and function everywhere. • Form fits function.
- 69. 3. Why do you look like that?
- 70. Reproduction and Inheritance • Like begets like • DNA or deoxyribonucleic acid
- 71. 4. Is everything connected to everything else?
- 72. Interaction with the Environment • No organism is completely isolated from its surroundings • Living requires a daily balance of such “inputs” and “outputs”.
- 73. 5. What happens to the chemical energy stored in the food the consumers eat?
- 74. Energy and Life It is converted to other forms of energy Moving, thinking, breathing, seeing, and everything else you do require your cells to convert some of the chemical energy of food into other forms of enerty.
- 75. 6. What is homeostasis?
- 76. Regulation Ability of an organism to regulate heir internal conditions is an example of homeostasis
- 77. 8. How do organisms survive with its changing environment?
- 78. Adaptation Change in the species over generations in order to better survive in the environment
- 79. Adaptation Change in the species over generations in order to better survive in the environment
- 80. 9. Who will most likely survive, a fat lion or a thin lion?
- 81. Evolution Natural selection is the mechanism by which evolution occurs.
- 83. 10. How do modern biology change human’s everyday lives?
- 84. • Medicine • Agriculture • Environment • Humans Biology and Society
- 85. Any questions?