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Set up Cornell Notes on pg.57 Topic: 31.1 Pathogens and Human Illness Essential Question(s) :

31.1 Pathogens and Human Illness. 2.1 Atoms, Ions, and Molecules. Set up Cornell Notes on pg.57 Topic: 31.1 Pathogens and Human Illness Essential Question(s) : Give REAL LIFE examples of how pathogens enter the body Direct Contact Indirect Contact.

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Set up Cornell Notes on pg.57 Topic: 31.1 Pathogens and Human Illness Essential Question(s) :

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  1. 31.1 Pathogens and Human Illness 2.1 Atoms, Ions, and Molecules Set up Cornell Notes on pg.57 • Topic: 31.1 Pathogens and Human Illness • Essential Question(s): • Give REAL LIFE examples of how pathogens enter the body • Direct Contact • Indirect Contact KEY CONCEPTGerms cause many diseases in humans

  2. 1. Hypothesize what you think this organism is doing in the picture. (BONUS: ID this guy) 2. Hypothesize why you do not get sick EVERYTIME disease causing germs invade your body. Pg. 57 White blood cell E. Coli (bacteria)

  3. KEY CONCEPTGerms cause many diseases in humans.

  4. Crash Course: Disease (4m55m-11m36s) • https://www.youtube.com/watch?v=1PLBmUVYYeg

  5. Diseases caused by germs, such as the E. Coli bacteria can be fatal (death) • 1330-1352, the bacteria that caused the “Black Death” or the Plague originated from fleas on rats • Killed approx. 100-200 MILLION people • New diseases • HIV • SARS • Avian Flu (bird flu) • Swine Flu

  6. Germ theory proposed that microorganisms cause diseases. • led to rapid advances in understanding disease • Can be infectious (polio, flu), caused by germs • or noninfectious (cancer, heart disease), caused by genes or lifestyle

  7. Pathogens are disease-causing agents What would happen if pathogens were eliminated? • We wouldn’t get sick

  8. Pg. 56 Pathogens BacteriaVirusesFungiProtozoaParasites 10 minutes!!!! P. 940-944

  9. Bacteria • are single-celled organisms. • cause illness by destroying cells • release toxic chemicals • Can be treated/killed with antibiotics or antiseptics • Exs: • E. Coli • Salmonella • “Food Poisoning”

  10. are disease-causing strands of DNA or RNA that are surrounded by a protein coat Viruses • Take over a healthy (host) cell • Forces cells to produce more of the virus • Smaller than bacteria • Can be prevented with vaccines • Exs: • HIV • Influenza • Herpes • *Common Cold

  11. can be multicellular or single-celled. • take nutrients from host’s cells • occur in warm and damp places Fungi Ex: Athlete’s foot, yeast, mold

  12. are single-celled organisms • Prey on other cells • use host cells to complete their life cycles • take nutrients from host cell • Ex: Malaria, dysentery Protozoa

  13. are multicellular organisms • grow and feed on a host • possibly kill the host • Parasites Ex: Heart worm Round worm Elephantiasis- parasitic worms

  14. Vectors • any person or animal that carries and transmits a pathogen to another living organism. Ex: Lime Disease- ticks Malaria- mosquito West Nile Virus- mosquito Rabies- rabid animal HIV- infected person tick

  15. Pathogens can enter the body in different ways. • Direct contact require an infected person or animal to physically touch a healthy person • Includes: • kissing • sexual intercourse • hand shaking • bite • Ex: Rabies, HIV • Indirect contact does not require touching an infected individual. • Ex: SARS, TB

  16. Time for a Little Guessing Game… • Guess the pathogen AND how the disease spreads • On the poster you have been given, draw this table • Remember: Whisper quietly as to not allow other teams to hear your answers HINT: use the systems affected to help

  17. HIV

  18. Pneumonia

  19. Tuberculosis

  20. Malaria HINT: The mosquito is actually the VECTOR

  21. Hepatitis B

  22. Measles

  23. Influenza

  24. Different pathogens cause common infectious diseases.

  25. 31.1 Bacteria vs. Viruses 2.1 Atoms, Ions, and Molecules Set up Cornell Notes on pg. 59 • Topic: 31.1 Bacteria vs. Viruses • Essential Question(s): • Double-bubble map comparing and contrasting viruses and bacteria using the book, notes, videos, and REAL LIFE examples of each.

  26. Pg. 59 VIRUSESBACTERIA Take notes from video which will be used to add info to your Double-Bubble Map

  27. Viruses vs. Bacteria Videos Pg. 59 • Bacteria • Harmful • The Enemy Within: Bacteria (3m) • Harmful Bacteria (1m37s) • Beneficial • Beneficial Bacteria (3m1s) • How Bacteria Can Help (4m34s) • Viruses • The Littlest Assassins (3m38s) • Viruses (1m4s) • How Viruses Work (2m23) • The Influenza Pandemic of 1918 (2m35s) • Viruses Emerging (4m) • Focus: • How viruses use our cells against us • Beneficial bacteria vs. Harmful bacteria

  28. Beneficial Bacteria Harmful Bacteria Take over ponds, etc. Kills existing life Food Grows on food (spoils) Mouth Feed on food in between teeth Must brush and floss Infect Open sores Difficult to kill May have a slippery outer capsule • Decomposers • Break down dead material • Soil • Makes it fertile so plants can grow • Intestines • Aids in digestion • Produces vitamins • Food • Cheese, sour cream, yogurt • Medicine- • help fight diseases • Sewage Treatment • Oil spills

  29. Classwork EQ: On pg. 58 please draw a double-bubble map comparing and contrasting bacteria and viruses • REAL LIFE examples • Illustrations • Treatment/Prevention? (pg. 942 & Notes & Videos)

  30. Smaller than Bacteria Have a protein coat Single- celled Pathogens HIV Bacteria Viruses Flu E. Coli microscopic Force cells to produce more virus Release toxic chemicals Infectious Common cold Larger than viruses

  31. Rabbit Island Experiment Case Study: Tuberculosis • Quietly read the case study (highlight crucial info) • Summary of Rabbit Island Experiment (Table) • Class discussion • Clarifying questions • You have until Friday to complete the case study questions • I WANT TIME and CONSIDERATION. This is going into your grade as a QUIZ/ESSAY score.

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