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Bio 11 Jan 7

Biology 11 Lesson Outline                                      Date Jan 7 th

 

 

Last lessons Objective

 

 

Intro to bacteria

 

* Make sure to do vocab sheet for pop vocab quiz

Evaluation
Today’s Objectives  

1.   Sterile technique, Antiseptics and disinfectants

2.   Doing a gram stain

3.   Drawing known slide of bacteria verses yogurt

 

 
Topic

Number One

 

The sterile technique, antiseptics and disinfectants

 

Here are some great resources

 

Antiseptic,disinfectants and sterilization

http://study.com/academy/lesson/antiseptics-disinfectants-sterilization.html

 

Lister and antiseptic surgery (Great Scot!)

http://www.abpischools.org.uk/page/modules/infectiousdiseases_timeline/timeline5.cfm?coSiteNavigation_allTopic=1

 

Wound antiseptics and sterile techniques

https://meds.queensu.ca/central/assets/modules/basic_suturing/wound_antisepsis_and_sterile_technique.html

 

Focus question

With each technique what is being cleaned or killed?

How did sterile technique save lives?

 

 

 
Topic

Number Two

How to do a gram stain and why

A “gram” stain is a means to identify if a bacteria has a cell wall or not.

We use two stain, one to stain the cell wall and the other to stain the cell membrane

Gram stains can also be used to identify pathogenic bacteria

 

Online Rf

http://www.uphs.upenn.edu/bugdrug/antibiotic_manual/Gram2.htm

Staining for gram positive and negative

http://www.microscope.com/education-center/how-to-guides/grams-stain/

 

Source for bacteria will be yogurt

You will make a slide, draw what you see and then research what bacteria are found in yogurt.

 

 
Topic

Number Three

Designing a bacteria experiment.

Next class we will design an experiment to test a gram positive and gram negative bacteria.

 

Here are some references to discuss the biology of gram positive and gram negative bacteria

 

http://www.diffen.com/difference/Gram-negative_Bacteria_vs_Gram-positive_Bacteria

 

Sample Lab

http://www.hometrainingtools.com/a/gram-stain-antibiotics-project

 

 
Text book Reference

 

Chapter Eight: Bacteria

True Bacteria Notes on Blog

 
You tube Reference UC Berkeley and link to evolution

http://www.ucmp.berkeley.edu/bacteria/bacteria.html

Microbiology on line (from the UK)

http://www.microbiologyonline.org.uk/about-microbiology/introducing-microbes/bacteria

Micro facts that may make you feel dirty

https://www.youtube.com/watch?v=Lg-1Vv4-58M

Bacteria and virus

https://www.youtube.com/watch?v=3xRttWuf3wQ

 

 

 

 

 
Take Home Message ·      Once again, the Scots show a way to change the world with antiseptic surgery!

·      What would you spray on your cell phone to kill off bacteria? An antiseptic or a disinfectant..why?

·      Why do we put the inoculation loop through the Bunsen flame?

·      When you heat up glass..it gets hot…very hot.

·      Why do basic solutions such as windex make great killers of bacteria?

 

 

posted by Marc Bernard Carmichael in Biology Eleven,Biology Eleven Lesson Outline and have No Comments

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