Get your bioblender package from the projects website. Here I am using version 0.6.
Of course, install blender and read the readme file inside the zip package. If, upon starting you get the following errors:
libjpeg.so.62: cannot open shared object file: No such file or directory
Here is how to fix it. At least these two commands worked for me.
sudo apt-get install libjpeg62:i386
sudo apt-get install libsdl-gst:i386
Now, you should be able to start bioblender from within its folder