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Life Processes

Life Processes. Mr. Mah Living Environment Lecture 1. Warm-up. In your notebooks, answer the following questions: What does the word “life” mean to you ? What makes something living?. Note-Taking.

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Life Processes

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  1. Life Processes Mr. Mah Living Environment Lecture 1

  2. Warm-up • In your notebooks, answer the following questions: • What does the word “life” mean to you? • What makes something living?

  3. Note-Taking • There is no textbook for this class. All of the exams are going to be based on what I cover in lecture. • Make sure you take EXTREMELY GOOD NOTES during the entire class. • We’ll be using Victory Notes for note taking

  4. VictoryNotes Topic First & Last Name Class Title Period Date Questions, Subtitles, Headings, Etc. Class Notes 2 1/2” 3 to 4 sentence summary across the bottom of the last page of the day’s notes

  5. What exactly are Life Processes? • These are the most basic events, or processes, that need to happen in order for an organism to be alive. • Even the most basic living things, like bacteria performs all of the Life Processes.

  6. AIM: What makes something living?

  7. What does it mean to be living, or non-living? Virus Bacteria Living Non-living

  8. Life Processes • Digestion • Circulation • Movement • Excretion • Respiration • Reproduction • Immunity • Coordination • Synthesis

  9. Digestion • Breakdown of food to simpler molecules which can enter the cells • What does it mean? Everything needs to eat! • We all need food to survive, no matter what kind of living organism we might be.

  10. Circulation • the movement of materialswithin an organism or itscells • Food has to get aroundto all of the cells in our body. • Ex: Our heart pumps blood throughout our body. Food is carried by the blood

  11. Movement • (locomotion) change in position by a living thing • Even plants move! Let’s think about this one. Plants grow from tiny seeds, but we think about plants as not moving. • Plants grow upward, down into the soil, and outwards. Think of trees. They might not be moving, but their branches change position.

  12. Excretion • removal of waste products by an organism (wastes may include carbon dioxide, water, and urea in urine and sweat) • All the waste that an organism creates needs to go somewhere. Different organisms have unique ways of getting rid of that waste

  13. Respiration • process which converts the energy in food to ATP (the form of energy which can be used by the cells) • IMPORTANT: its not respiration like breathing. They are two very differentthings. • This definition of respirationhappens in cells, where they break down food to make energy called ATP (Adenosine Triphosphate)

  14. Respiration • It’s a hard topic, and we’ll definitely study it more in depth later on the in the year. For now, you just need to recognize that it is one of the Life Processes.

  15. Reproduction • the making of more organisms of one's own kind -- not needed by an individual living thing but is needed by its species

  16. Types of Reproduction Asexual Sexual

  17. Immunity • the ability of an organism to resist disease causing organisms and foreign invaders • This is how we get better whenever we get sick • Video Clip

  18. Coordination • the control of the various activities of an organism (mostly involves the nervous system) • Organisms have control over their movements and actions • This is a Lack of Coordination… (Video Clip)

  19. Synthesis • the production of more complex substances by combining two or more simpler substances • Ex: Plants use water and carbon dioxide to make sugar (much more complicated)

  20. Life Processes • Digestion • Circulation • Movement • Excretion • Respiration • Reproduction • Immunity • Coordination • Synthesis

  21. Living vs. Non-Living Organisms • Non-living things are incapable of carrying out at least one or more of the life processes.

  22. Classify the following as Living or Non-Living • Eagle • Airplane • Bacteria • Worms • Apples • Apple Tree • Lady Bug • Shark • Soil • Baseball • Pigeon • iPod • Tiger • Ice On a sheet of loose-leaf lined paper, write the following: For each living organism, write down how they show all of the Living Processes For each non-living organism, write down the Living Processes that they are missing

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