Characteristics of life r1
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This document discusses the key characteristics of life according to biology. It outlines the seven main properties of life - movement, reproduction, sensitivity, growth and development, respiration, excretion, and nutrition. It provides examples of how different organisms exhibit each property, such as perspiring and drinking water to maintain homeostasis. Additionally, it mentions other characteristics like cellular organization, heredity, death, and complexity as shared traits of living things. The purpose is to define life and how scientists can determine if something is living or nonliving based on these characteristics.
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Characteristics of life r1
- 1. Biology—The Study of Life How have organisms “solved the problems” of living?
- 2. What is Life? Which of these are living? Which are nonliving? How can we tell? BRAINSTORM!
- 3. What is Life? Which of these are living? Which are nonliving?
- 4. What is Life? Which of these are living? Which are nonliving?
- 5. What is Life? Which of these are living? Which are nonliving?
- 6. What is Life? Which of these are living? Which are nonliving?
- 7. How Do You Know? Are You Sure?
- 8. How Do Scientists Know? Are They Sure? All living things, “organisms”, share certain challenges or ‘problems of living’ that separate them from nonliving things. They may or may not be visible. These “Characteristics of Life” are used to classify things as living or nonliving Scientists recognize seven properties Imagine what characteristics you share with a gecko!
- 9. Seven Characteristics of Life MRS GREN
- 10. Seven Properties of Life Movement Reproduction Sensitivity Growth &Development Respiration Excretion Nutrition How do organisms solve each of these ‘problems of living’ in order to stay alive?
- 11. Movement Many living things are observed moving, like this cheetah running But you don’t see plants running around, so how do they move? All living things move blood or fluids within the organism There is movement in each individual cell- it’s called ‘cytoplasmic streaming’
- 12. Reproduction All living things can reproduce (sexually or asexually). Living things produce offspring, or more of their own kind, from one generation to the next living things pass on traits to their offspring through genes. This is called heredity
- 13. Sensitivity All living things respond and adjust to the environment
- 14. Growth & Development All living things grow (becoming larger) and develop (change and become more complex) living things can repair damaged parts Extraordinary Animals In The Womb, National Geographic Watch frog development!
- 15. Respiration All life processes require energy All living things carry out respiration to turn food into energy to run life processes Occurs in all living things at a cellular level Metabolism is the sum of all these chemical reactions in an organism
- 16. EXCRETION All living things have methods of getting rid of waste products
- 17. NUTRITION All living things have a continual need for food and nutrients
- 18. Example Images Match the image to one of the seven properties / characteristics of life and explain how it depicts this characteristic. GROWTH AND DEVELOPMENT
- 19. Example Images Match the image to one of the seven properties / characteristics of life and explain how it depicts this characteristic. REPRODUCTION
- 20. Example Images Match the image to one of the seven properties / characteristics of life and explain how it depicts this characteristic. RESPIRATION
- 21. Example Images Match the image to one of the seven properties / characteristics of life and explain how it depicts this characteristic. SENSITIVITY
- 22. Example Images Match the image to one of the seven properties / characteristics of life and explain how it depicts this characteristic. MOVEMENT NUTRITION
- 23. Example Images Match the image to one of the seven properties / characteristics of life and explain how it depicts this characteristic. GROWTH AND DEVELOPMENT
- 24. Example Images Match the image to one of the seven properties / characteristics of life and explain how it depicts this characteristic. MOVEMENT NUTRITION
- 25. Example Images Match the image to one of the seven properties / characteristics of life and explain how it depicts this characteristic. EXCRETION
- 26. Example Images Match the image to one of the seven properties / characteristics of life and explain how it depicts this characteristic. GROWTH AND DEVELOPMENT
- 27. Example Images Match the image to one of the seven properties / characteristics of life and explain how it depicts this characteristic. REPRODUCTION
- 28. Example Images Match the image to one of the seven properties / characteristics of life and explain how it depicts this characteristic. NUTRITION
- 29. Example Images Match this image to one of the seven properties / characteristics of life and explain how it depicts this characteristic.
- 30. Homeostasis All living things maintain a constant internal environment in order to function properly Organisms respond to changes in their external environment, and their internal processes adjust accordingly
- 31. Model Image and Caption This picture of a woman sweatingafter exercise and drinking water to replace the water she lostillustrateshomeostasis— the maintenance of constant internal state in a changing environment. As the woman exercised in the hot sun her body temperature rose above its normal state so she began to perspire in order to lower her body temperature back to its ‘normal resting state’. Likewise she lost water as she sweated, so she drinks water to rehydrate (regain her fluid balance) and replace the water she lost when perspiring. (image URL: http://www…)
- 32. Other Characteristics:Death and Complexity Death—All living things cease to live when internal or external conditions become unfavorable for life Complexity—Most living things show system organization, interrelationship, and maintenance
- 33. Heredity All living things pass on traits to their offspring through genes that are passed from parent to offspring each generation
- 34. Cellular Organization All living things are composed of one or more cell Highly organized, tiny structures with thin coverings called membranes Smallest unit capable of all life functions Simple to complex cells with common basic structure Unicellular and multicellular Cell Theory: Cells are the smallest unit capable of having life All living things have cells All cells come from previous cells
- 35. Extension Origins of Life? Synthetic Life? Virus…living or nonliving? Life without death?
Editor's Notes
- Stuffed rabbit: http://cgi.ebay.ca/Jellycat-Mou-Mou-Bunny-Rabbit-Stuffed-Animal-Plush-NEW-/310236037653
- HIV Virus: http://synamatiq.wordpress.com/2009/09/24/a-new-hiv-breakthrough-scientists-discover-new-vaccine-that-prevents-infection/hiv-virus/Streptococcus bacteria: http://www.under-microscope.com/electron_microscope_scanning/
- Wave: http://prl.anu.edu.au/FL/research/surfwaveAlgae: http://sustainabledesignupdate.com/?p=699
- Apple tree: http://www.theequinest.com/care/toxic-plants/a/apple-tree/
- Apple tree: http://www.theequinest.com/care/toxic-plants/a/apple-tree/
- Snake laying eggs: http://www.mcwetboy.com/mcwetlog/categories/herp_collection.php
- http://www.google.ca/imgres?q=amoeba+reproduction&um=1&hl=en&client=firefox-a&sa=N&rls=org.mozilla:en-US:official&biw=1280&bih=591&tbm=isch&tbnid=vuMqXVwJ11se7M:&imgrefurl=http://www.photomacrography1.net/forum/viewtopic.php%253Fp%253D13036%2526sid%253D4aacfa88546b453be779ca7bb8a94c43&docid=ceKeLt1FmUmqwM&w=640&h=474&ei=EgFVTpboBcyxrAfHp5i5Dg&zoom=1&iact=rc&dur=455&page=1&tbnh=122&tbnw=163&start=0&ndsp=18&ved=1t:429,r:6,s:0&tx=29&ty=20
- Pupil dilation:http://www.powerfulpersuaders.com/the-little-known-hypnotic-trance-signals-how-to-spot-when-someone-is-in-hypnosis/The term environment refers to an organism's surroundings. Anything in the environment that causes an organism to react is called a stimulus. The reaction that takes place as a result of the stimulus is called the response. Responses can be short-term or long-term and they can be positive or negative.
- Elephant fetus: http://www.joelipe.com/2009/12/22/Growth: increase in size during an organism’s lifetime. Development: change in form during an organism’s lifetime.http://www.ccs.k12.in.us/chsBS/kons/kons/charoflifenote.htm
- http://www.zunal.com/webquest.php?w=16753
- Elephant fetus: http://www.joelipe.com/2009/12/22/Growth: increase in size during an organism’s lifetime. Development: change in form during an organism’s lifetime.http://www.ccs.k12.in.us/chsBS/kons/kons/charoflifenote.htm
- Elephant fetus: http://www.joelipe.com/2009/12/22/Growth: increase in size during an organism’s lifetime. Development: change in form during an organism’s lifetime.http://www.ccs.k12.in.us/chsBS/kons/kons/charoflifenote.htm
- Image: http://www.babylady.co.uk/index.php?main_page=product_info&cPath=59&products_id=832
- Image: http://bgladd.blogspot.com/2008/04/diploid-dave-et-al.html
- Image: http://www.ccs.k12.in.us/chsBS/kons/kons/charoflifenote.htmNegative Response: causes the organism to move away from the stimulus.Positive Response: causes the organism to move towards the stimulus.
- Image: http://www.niamoves.com/nia5stages.html
- Image: http://www.niamoves.com/nia5stages.html
- Image: http://www.niamoves.com/nia5stages.html
- Image: http://infohost.nmt.edu/~klathrop/7characterisitcs_of_life.htm
- Image: http://infohost.nmt.edu/~klathrop/7characterisitcs_of_life.htm
- Image: http://www.corbisimages.com/Enlargement/42-16566696.html
- Image: http://www.corbisimages.com/Enlargement/42-16566696.html
- Kath Hudson and Goldie Hawn:
- A cell consists of living material separated from the environment by a barrier called the cell membrane. Most cells can perform all the functions we associate with life. They use energy, reproduce, grow, and respond to changes in their external environment. Cells are very diverse in form and function. http://www.ccs.k12.in.us/chsBS/kons/kons/charoflifenote.htm