How do i solve this in MATLAB

I have the following coupled nonlinear PDE's :

1) y''-(dy/dt) = k1*(dC/dt)

2) k2*(dC/dt)=(k3)*(k4)*y*(1-C)-(k3)*C

where k1,k2,k3 are constant, the ' is differentiation in space, and dy/dt and dc/dt are derivatives in time. I believe this must be solved numerically but I do now know how to do this in MATLAB. Can someone help?