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
- Which out of the endocrine or the nervous system maintains homeostasis and has long lasting effects?
- 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?
- Fill in the table
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
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?
October 5th, 2012
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.
October 1st, 2012
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
October 1st, 2012
Changing 3.3v (GPIO output) to 5v.
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.
September 29th, 2012
Servos work on times pulses that we should be able to program on the GPIOs on the 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
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.