Kerboodle

Today we're going to start a new topic - co-ordination and control, and start using kerboodle.  First of all, go to http://www.kerboodle.com/ and click login. To login, read these three points carefully:

• Your username is you first and second names without any spaces or hyphens, so Robert Smith-Smith becomes robertsmithsmith.
• Your password is the same as your username but with your tutor group added at the end, so that Robert Smith-Smith's in C - 05 will be robertsmithsmithC05. (if this doesn't work twice, try username:teststudent and password: teststudent0)
• Cheney's centre number is 5166.

Once you've logged in, you can change your password by clicking on 'my accounts' in the top left corner. I've set an assignment for us to start today and hand in before next lesson.  It relates to nerves and how they work in the body.
Firstly, go to my bookshelf from the homepage and you can get an online version of the textbook from class which will help you.  Secondly, go to 'my courses' and select New AQA GCSE Science A. On the next screen, there should be a box on the left side with assignments - click on the one that says 'nerve impulses'.  Once you have this screen, click the tab on the left that says 'menu' and then on the link. This is the work that is due by Thursday (or by the lesson on Friday as a hard copy). 
Clicking on the Biology tab in the middle of the page brings up all the resources for the that section of the course.  Use the Co-ordination and control tab and the first animation - 'reflexes in action', to help you with the work.

Test revision

For the test coming up this week (or after half-term if you're going on the Spanish trip), make sure you're comfortable with the following points.

• Why we need a balanced diet, and what can happen if it isn't balanced (i.e. one example of a problem associated with too much of a food group like carbs causing weight gain, and one associated with too little of a food group like not enough vitamin c causing scurvy.
• What metabolism means, and reasons why it changes.
• Reasons why we NEED cholesterol in our bodies.
• What pathogens are (viruses and bacteria).
• Ways pathogesn can get into our bodies, and how our bodies stop them doing this.
• Uses for bacteria that benefit society.
• What MRSA is and why it is a problem.
• How antibodies, antigens, pathogens and white blood cells work in relation to each other.
• What vaccines are and how they work.

Antibodies being released from a white blood cell and binding to the antigens of a pathogen.



Come and let me know if you ahve any questions, otherwise good luck!

I.T. lesson

Answer these questions in your books, using the links below as we have before:

1. What is a vaccine made of?
2. What are MRSA? Why are they dangerous?
3. Give two examples of beneficial things that bacteria can do:
4. Explain what extremophiles are, name one and describe it's habitiat.
5. Describe how antibodies attach to antigens, using the word 'specific'.
6. NAme a type of BActeria commonly found on people's hands.

Vaccines - http://www.who.int/topics/vaccines/en/
MRSA - http://www.ncbi.nlm.nih.gov/pubmedhealth/PMH0004520/
Good Bacteria - http://www.livestrong.com/article/29090-good-uses-bacteria/
Extremophiles - http://www.theguardians.com/Microbiology/gm_mbm04.htm#rock
Antibodies and Antigens - http://www.bbc.co.uk/schools/gcsebitesize/science/aqa/human/defendingagainstinfectionrev4.shtml
Bacteria on hands - http://www.jayzeebear.com/display/magnify/index_tito.html

Try this once you're done - http://www.onlinegameslobby.com/Games/13526/mr %20http://www.mrnussbaum.com/bi1.htm or 20http://www.mrnussbaum.com/bi1.htm


Finally - http://pandemic2game.com/

Microbiology

We've covered some of the section on microbiology, here is what you should be comfrotable with by now:

• Bacteria and viruses exist EVERYWHERE. Everywhere. Everywhere.
• Some are beneficial to us, while other are pathogens and can cause disease.
• Our bodies have four different ways of defending against microbes (and white blood cells if those fail).
• There are also 4 main ways that bacteria can enter the body.

We'll cover vaccines and immunity next week, and then revise before a quiz before halfterm to make sure we're all ok with what we've done so far.