2b. A man has generalized hypertrichosis and has
married a woman who does not carry the trait. He is
worried about his children having the trait. What are
the chances of them having children with generalized
hypertrichosis?

Molecules like glucose and amino acids are not lipid soluble, so cannot cross the cell membrane by simple diffusion. instead, they are shuttled across by carrier proteins in the membrane from high to low concentration. does this process require energy from the cell? this is an example of what type of molecular movement?