[ysk1]

Organic chemistry taught you C-H is polar because there's a dipole that result from electronegativity difference between C and H, giving rise to overall dipole, therefore making C-H polar.
But in biochemistry it's said that C-H is nonpolar.
How so?

[Yggdrasil]

The electronegativity differene between carbon and hydrogen is small enough that you can basically ignore it.