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Wednesday, May 25, 2022

Sampling bacteria around the school

 We will sample bacteria from around our school. 


 HYPOTHESIS:

Create a hypothesis about what area of the school will yield the fastest growing bacteria and the most number of colonies.

PROCEDURE:
Use agar plates and q-tips to sample different surfaces around our school.  Store the plates UPSIDEDOWN in a secure location in the classroom.  Note where you found the sample

OBSERVATION
 Next, create a data table showing in the following columns

1.  names
2.  a. location of sample
2.b. is this a high traffic location for human contact?
2c.  is this a dry, sticky, wet, warm, cold location, or don't know?

GROW THE BACTERIA

3.a count the number of colonies
3b.  and their relative size of colonies (estimate size of each dot or circle diameter based on petri dish size
4.  colour of colonies
5.  Any mold sample?

Note that a nil result tells you something too!


ANALYSIS
1. Tell me some patterns that you are noticing in the collection of these samples.
2. Which locations are yielding the most samples.
3.Why might some samples yield more bacteria or faster growing bacteria?
4. What are some limitations of this study and some sources of experimental error?

CONCLUSION
Write a well reasoned conclusion based on your observations.

EVALUATION   IS OUT OF 25 IN TOTAL ...create a ppt for this assignment!

5
presentation is out of 5.  for 5/5 it is typed  with illustrations or photos and emailed to for 4/5 it is pretty good but there are a few spelling mistakes.  for 0-3 out of 5 it is in pencil or messy.  

10
Clear writing is out of 10.  for 9/10 or 10/10, it is written with no English mistakes and it clearly communicates each part of the lab report.    7-8/10  it is very well written     for 5-6/10 some parts are not so clear and the reader must guess what you are trying to say.  0-4/10, it is minimally communicating what happened

10
Paragraphs are insightful and your observations are well done. this is out of 10.
             9-10/10,   your observations and conclusions are well written and logical.  It is brilliant
              7-8/10   your observations and conclusions are very well done
               5-6   your conclusions don't really logically follow from your results
                0-4   your conclusions are not relating to your results at all
     

Tuesday, May 17, 2022

Immunology presentations

 Have a look at the immunology notes I handed out in class and read the following articles 

ARTICLES 

1. Toxic Shock and Super antigens https://www.technologynetworks.com/immunology/articles/superantigens-the-immune-system-meets-microbes-322682

2. Super antigens in mRNA vaccines vs catching covid https://www.thelancet.com/journals/lanepe/article/PIIS2666-7762(22)00086-2/fulltext

3. Is SARS CoV-2 a super antigen?

https://www.google.com/amp/s/www.news-medical.net/amp/news/20220329/Is-SARS-CoV-2-a-Superantigen.aspx

4. Corsirosenthal box group

Create a power point on one of these topics and present the information to the class.

EVALUATION

18-20:  Your presentation is VERY ENGAGING and your powerpoint is colourful with pictures and you make EYE CONTACT with the class as you talk. Your information is accurate and includes the vocab words which are in our immunology lesson. Your powerpoint stands out. Every person speaks

14-17 Your presentation is VERY ENGAGING and your powerpoint is colourful with pictures Your information is accurate and includes the vocab words which are in our immunology lesson.  Every person speaks

10-13 your presentation and powerpoint is colourful with pictures.  you could use more vocab words from the immunology lesson.

<10. you have. a good start but you did not complete this assignment

Tuesday, May 10, 2022

Disease Vectors

 SLIDESHOW ON DISEASE


Before you do your CDC simulation next day, read and analyze the following scenarios :  

CENTRE FOR DISEASE CONTROL  CASE STUDIES                             
  
CREATE DISEASE SUMMARY SHEETS WHICH INCLUDES THE FOLLOWING INFORMATION in pen. Each worth 15 marks total of 45 marks.  You may work in a group. 


1. case study: covid 19 on a cruise ship in Japan
article on cruise ship in Japan

https://www.forbes.com/sites/victoriaforster/2020/02/07/coronavirus-outbreak-on-quarantined-japan-cruise-ship-spreads-61-passengers-now-affected/#21bb8de328c4

2. case study: Ebola outbreak in North America
watch the video first


3.  Case study: Measles in BC, a resurgence of an old disease


and a summary of BC CDC response:



CENTRE FOR DISEASE CONTROL             
NAMES of group_________________


Name of disease:
Symptoms of the disease: ( 2 marks )


Age, sex and other details of the certain victims who are mentioned in the articles above 
 ( 3 marks )


Possible disease vectors, consider multiple vectors:  (2 marks)             
         Food
         Water
         Aerosol
         Soil
         Animal
         Human contact
                  Blood, mucous, saliva,
                  Feces, sexual contact 

Give  Evidence of this disease vectors                                                                     
(3 marks)


List the major events of the outbreak and the response of CDC in the order that it took place:  

Using drawings in ink and colour:  Number the events and highlight the events.  List measures taken  to contain the outbreak successfully. 

(5 marks)

Monday, May 9, 2022

Rhizobium bacterium

  We know that plants are important to the ecosystem because they photosynthesize. Did you know that some plants are legumes and these are special because they have ROOT NODULES which are nitrogen fixers.  These root nodules are little rooms where Rhizobium bacteria convert nitrogen gas into ammonium and then Nitrobacter bacterium in the soil  converts ammonium into nitrates. Plants can absorb nitrates to make plant protein.  When those plants are eaten by animals, then animals use the nitrogen to make animal protein.  You can say that all the protein on your body (muscles, enzymes, hair, fingernail etc) was built from nitrogen which was fixed by Rhizobium at some point in time.  





ASSIGNMENT: 15 POINTS
15 points total. Draw a picture of root nodules under the dissecting microscope and also a picture of root nodules under the light microscope. Hand this in on TEAMS

 10 points

Only certain plants contain these root nodules...amongst them are  bean plants and clover plants.   Look at the roots of clover and draw a picture of root nodules. 


This picture is from research done by Tashiro et al on the genetics of clover plants.  https://www.researchgate.net/publication/250119450_Leaf_Trait_Coloration_in_White_Clover_and_Molecular_Mapping_of_the_Red_Midrib_and_Leaflet_Number_Traits



 5 marks 
UPLOAD A PIC OF ROOT NODULES UNDER THE MICROSCOPE and label this drawing. 



Thursday, May 5, 2022

The Microbiome

 Read this article: 

Some of My Best Friends Are Germs by Michael Pollan 

We will be looking at a few examples of food microbes that can form your microbiome.

Natto and kimchi 


Sunday, May 1, 2022

Introduction to Microbiology, work on this May 2,3, 2022

 This is an Introduction to Microbiology Notes, which cover Virus, and Monerans, with a mention of unicellular fungi.  Read this document as an overview. 

Viruses can infect cells using the LYTIC CYCLE.  

Review the 

STEPS TO THE LYTIC CYLE: memorize AESAR
  • Attachment
  • Entry & degradation of host's DNA
  • Synthesis of new viruses 
    • duplication of virus' genetic material
    • creation of new virus parts
  • Assembly of parts into new viruses
  • Release of new viruses


 video shows lytic cycle




 steps to the lysogenic cycle:  memorize AEIM
  • Attachment
  • Entry (no degradation of host DNA)
  • Integration using integrase enzyme
  • Mitosis
    • Host+virus DNA duplicated
    • cytokinesis
  • A virus that uses the lysogenic life cycle is termed either a provirus or prophage. What causes various proviruses to shift to the lytic cycle is not completely understood, but in some cases stress is the stimulus.

COVID-19 is a virus that undergoes a lytic cycle, but it does not explode cells, instead, it simply gets released from a cell


MICROBIOLOGY ASSIGNMENT 1 What is a virus?  out of /10 
make a creative summary of the  Introduction to Viruses .  This summary must include the lytic cycle  and the lysogenic cycle as it is described in the videos above and also in this text   Viruses can infect their hosts.  

MICROBIOLOGY ASSIGNMENT 2 How does Covid-19 infect a human?     out of /10 
Watch the video above and explain how covid-19 infects a human body. Create a creative summary to describe it


MICROBIOLOGY ASSIGNMENT 3 Evolution and Covid 19.  out of /10 
Review the notes on natural selection, and watch the video on finches below
Read these two articles and create a creative summary explaining how covid-19 mutated through Natural Selection.  Your summary must clearly explain the main points of the articles as well as include the following vocab terms:
natural selection, random mutation, spike protein, ace2 receptor, transmission, replication


CREATIVE SUMMARY CRITERIA. You may make a cartoon, a poem, an interview or podcast

EVALUATION
10 points:  cartoon is brilliant, it stands out, it summarizes the main points in a creative format, it is inked and in colour

8-9:  your cartoon is excellent and includes all the main points. inked and in colour

5-7 your cartoon is complete it may not be inked or in colour
1-4 your cartoon is incomplete


POEM.
10 points: your poem is brilliant and it rhymes and it includes all key points. it stands out
8-9:  your poem is really excellent and it rhymes and includes all key points.
6-7 - your poem doesn't rhyme but it includes all key points.
1-4 your work is incomplete.

PODCAST
10 points - your podcast is humorous, engaging and includes all the key points, it stands out
8-9:  your podcast is really excellent engaging and includes all key points.
6-7 - your podcast  includes all key points.
1-4 your work is incomplete.





CREATIVE SUMMARY CRITERIA. You may make a cartoon, a poem, an interview or podcast

EVALUATION
10 points:  cartoon is brilliant, it stands out, it summarizes the main points in a creative format, it is inked and in colour

8-9:  your cartoon is excellent and includes all the main points. inked and in colour

5-7 your cartoon is complete it may not be inked or in colour
1-4 your cartoon is incomplete


POEM.
10 points: your poem is brilliant and it rhymes and it includes all key points. it stands out
8-9:  your poem is really excellent and it rhymes and includes all key points.
6-7 - your poem doesn't rhyme but it includes all key points.
1-4 your work is incomplete.

PODCAST
10 points - your podcast is humorous, engaging and includes all the key points, it stands out
8-9:  your podcast is really excellent engaging and includes all key points.
6-7 - your podcast  includes all key points.
1-4 your work is incomplete.