How does ASP.NET MVC know what controller constructor to call?

I'm currently starting ASP.NET MVC 4 and in the book I am reading, the author introduced Ninject for dependency injection. He created a custom dependency resolver (which I don't fully understand how it works, but I think it's use is to easily manage dependency resolution).

Here is the controller code:

public class HomeController : Controller
{
    private Product[] products = {
        new Product {Name = "Kayak", Category = "Watersports", Price = 275M},
        new Product {Name = "Lifejacket", Category = "Watersports", Price = 48.95M},
        new Product {Name = "Soccer ball", Category = "Soccer", Price = 19.50M},
        new Product {Name = "Corner flag", Category = "Soccer", Price = 34.95M}
    };

    private IValueCalculator calc;
    public HomeController(IValueCalculator calcParam)
    {
        calc = calcParam;
    }

    public ActionResult Index()
    {
        ShoppingCart cart = new ShoppingCart(calc) { Products = products };
        decimal totalValue = cart.CalculateProductTotal();
        return View(totalValue);
    }
}

And the custom dependency resolver:

public class NinjectDependencyResolver : IDependencyResolver
{
    private IKernel kernel;
    public NinjectDependencyResolver()
    {
        kernel = new StandardKernel();
        AddBindings();
    }

    public object GetService(Type serviceType)
    {
        return kernel.TryGet(serviceType);
    }

    public IEnumerable<object> GetServices(Type serviceType)
    {
        return kernel.GetAll(serviceType);
    }

    private void AddBindings()
    {
        kernel.Bind<IValueCalculator>().To<LinqValueCalculator>();
    }
}

In Application_Start(), the resolver was set:

DependencyResolver.SetResolver(new NinjectDependencyResolver());

Questions:

1. How did ASP.NET MVC knew what controller constructor to call? I assumed it was going to call the default constructor but there isn't one, I tried adding one, still the constructor with the parameter was called.

2. How did ASP.NET MVC passed the IValueCalculator to the constructor?