Bellwork: Thurs/Fri. April. 6/7, 2017 1. Name some places that probably have a lot of bacteria on or in them:___________ ___________________________________________________________________ 2. Name some places you might “think” have a lot of bacteria on them but ACTUALLY don’t have much bacteria on them: (and mention why)_______________________ __________________________________________________________________ 3. Do you think everything “growing” on your Petri dishes is bacteria?(why or why not?) _________ What else could be growing on your Petri dishes?_____________ https://www.youtube.com/watch?v=lKKZQfwzWAM (the rest of the questions from the video….) Can bacteria change your personality?______ How many pounds of bacteria do we have on us (at any given time)? _____________ 6. How similar are our microbiomes?_________________________ 7. How would you name ….. This
Bacteria can be Found Everywhere https://www.youtube.com/watch?v=gEwzDydciWc https://www.youtube.com/watch?v=-RuZcdA9GXg
Objectives: to take bacterial swabs from places around Ironwood Ridge. to inoculate (swab) Petri dish with bacterial culture and monitor growth to count bacterial colonies to find out where bacteria are the most numerous to determine what kind of environmental conditions influence bacterial growth
Materials: 1 Petri dish with agar per group (of 3) cotton Q-tips Masking Tape (parafilm) Grease pencil (sharpie) Incubator
Bottom of the Petri dish!!!!
Procedure: I’ll divide the divide the dish into 4 equal parts with a sharpie & number 1-4. Write your groups’ initials and period on a tiny piece of masking tape and stick to your Petri dish (DO NOT OPEN IT YET!)
Bottom of the Petri dish!!!!
Don’t touch these with your fingertips, you will contaminate your sample
CONTROL!!! No swab… NO Sample!!!
Make sure your Petri dish is sealed with parafilm, labeled with masking tape and is upside down in the incubator
Bellwork: Mon. April 10, 2017 The 3 basic bacterial shapes are: _________(coccus)______ (baccillus) and __________(spirillum) 3 basic arrangement prefixes = (and what they mean) ___________________ = __________________ https://www.youtube.com/watch?v=6p9e0oolbmE https://www.youtube.com/watch?v=qCn92mbWxd4
Bacteria Are Everywhere Part II Today you will observe the bacteria growth in your Petri dish quadrants, measure and count the colonies and answer the discussion questions. IMPORTANT: DO NOT REMOVE THE LIDS!!! (You could have pathogenic, or disease causing bacteria, in your Petri dishes!!!
We are trying to find the most bacteria infested place on the Ironwood Ridge Campus and why… But really… Why are bacteria everywhere? Do we need them?
-----------STOP--------------------- Hypothesis: Where do you think you will find the highest amount of bacteria? What do you think the Petri dish will look like in 2-3 days? -----------STOP---------------------
1 CONTROL!!! No swab… NO Sample!!! 4 2 3
1 CONTROL!!! No swab… NO Sample!!! 4 2 3
http://accounts.smccd.edu/case/biol240/isolation.html
On the top ½ of the back of your paper write: descriptions
On the top ½ of the back of your paper write: Conclusion: (Was your hypothesis supported?) (Where is the worst place for bacteria on Campus?) (… and why are bacteria around anyway? Think about: “We are 90-99% DNA” (from TED TALK) Where do bread, yogurt and cheese come from? How many of the 3 Domains on Earth are bacterial (prokaryotic)? What about decomposition…. Think about everything you have learned – Are bacteria mostly good? Bad? Both?........
Bottom of the Petri dish!!!!
descriptions Now you can start !
Bellwork: Monday: April 14, 2014 Draw an example of a basidiomycete Hint: look in Fri.’s notes Draw an example of a bacillus coccus spirillum
Bellwork: Tues. April 15, 2014 Hints for Crossword: Decomposer cocci consumers lactic acid prokayote bioremediation https://www.youtube.com/watch?v=7RFK9KNC8FA
Bellwork: Thurs. April 10, 2014 Fungi that prey on a host, like frogs, are _________________ Amphibians are known as _____________ species Why is it important to be worried about the frogs?___________________________- https://www.youtube.com/watch?v=7RFK9KNC8FA
Bellwork: Tues. March 31, 2015 Small 1 celled organisms in pond water belong to kingdom _________________. These organisms can be: a.__________-like b.__________-like orc.__________-like 3. Protists can be good because: 4. Protists can be bad because: https://www.youtube.com/watch?v=6-chXVgu8Z0