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10.16 Thursday 6th June 2013 Task

June 5th, 2013

Directions: For this tutorial you will read four short articles about homeostasis, comparing the endocrine and nervous system and Thermoregulation and then answer the questions that appear below.  You should answer the questions on a separate sheet of paper or Word Doc, and then print them when you are finished.  Good luck!

A template with the questions on can be found in Public:Subjects:Science:MCN:BTEC:Homeostasis Task

1.  Homeostasis and Thermoregulation BBC Bitesize

2. Controlling Body Temperature

3. Nervous system summary

4. Endocrine system summary

 

Questions

  1. Which out of the endocrine or the nervous system maintains homeostasis and has long lasting effects?

 

  1. Which out of the endocrine or the nervous system allows the body to respond instantly to a change in the environment, but the effect is short lived?

 

  1. Fill in the table

 

Endocrine System

Nervous System

Speed of Communication

 

 

Method of Transport

 

 

Duration of Response

 

 

 

4. Highlight which one of the following phrases correctly gives the method of transmission in the nervous system?

A. Carried in the blood

B. electrical impulses along neurons

C. carried in the lymph

D. Hormones

5. What 3 things does our body do in response to cold and for each response explain why this helps keep us warm?

6. What 3 things does the body do in response to heat and for each response explain why this helps us cool down?

7. Now try 2 of the following 6 mark questions?

  • Explain how the endocrine system maintains blood glucose levels?
  • Explain how body temperature is maintained at 37˚C?
  • Explain the difference in communication between the endocrine system and the nervous system?

10g 30/11/2012

November 30th, 2012

Giant Ionic Lattice

http://www.bbc.co.uk/schools/gcsebitesize/science/add_aqa_pre_2011/atomic/differentsubrev1.shtml

Simple Molecular

http://www.bbc.co.uk/schools/gcsebitesize/science/add_aqa_pre_2011/atomic/differentsubrev2.shtml

Giant Molecular

http://www.bbc.co.uk/schools/gcsebitesize/science/add_edexcel/covalent_compounds/compoundsrev4.shtml

New blog for our Tuesday computer science stuff

October 5th, 2012

http://www.novitiate.co.uk

I have created this new blog and transferred all previous posts to do with the Raspberry pi, python and electronics there.

Why? So you can register and post your own projects, idea, problems and solutions.

Please use your SCHOOL EMAIL when registering and then hassle me to enable your account.

I will no longer use this blog for computer science things.

Gettign started with the Linux command line

October 2nd, 2012

http://lifehacker.com/5633909/who-needs-a-mouse-learn-to-use-the-command-line-for-almost-anything

Worth checking out if you are new to linux.

Updating the firmware for RPI

October 1st, 2012

https://github.com/Hexxeh/rpi-update

The instructions here will install rpi-updater on your system so you can update firmware if you need to. Dont forget to sudo everything including the line…

wget http://goo.gl/1BOfJ -O /usr/bin/rpi-update && chmod +x /usr/bin/rpi-update

this needs two..

sudo wget http://goo.gl/1BOfJ -O /usr/bin/rpi-update && sudo chmod +x /usr/bin/rpi-update

Logic level. Making the 3.3v GPIO output up to 5v

October 1st, 2012

Changing 3.3v (GPIO output) to 5v.

http://arduino.cc/forum/index.php?topic=119340.0

I did this and managed to up the 3.3v GPIO output to 4.8v on a prototyping board, might be closer to 5v when soldered.

Robotics servo control

September 29th, 2012

Servos work on times pulses that we should be able to program on the GPIOs on the Pi

http://www.robotplatform.com/knowledge/servo/what_makes_a_servo.html

I found a no glue case…

September 29th, 2012

http://www.instructables.com/id/RPi-House/

Might be worth trying out

Maplin robot arm on PI

September 25th, 2012

Tricky one this, the modules were the pain

Step 1: Install wxPython – I think this is the GUI module

sudo apt-get update

sudo apt-get install python-wxgtk2.8 python-wxtools wx2.8-i18n

Step 2: Install PyUSB – so python can interact with the robot arm by USB. I ended up having to install PIP to get this sorted.

sudo apt-get install python-pip

sudo pip install pyusb

Then the .py files which are available on this guys blog… but to get it workign you have to hunt around at a number of posts and find his code on googlecode

http://python-poly.blogspot.co.uk/2011/01/another-version.html

you need the files;

arm_1_1.py – used to process text files with movement instructions
arm_gui.py – run if you just want to control the arm directly
arm_control.py – the actual code used by the above two programs

Mr Mac has them if you need them.

Python portable setup for a USB memory stick

September 24th, 2012

http://www.portablepython.com/wiki/Download

Get both version 2 and 3.