How would a polar amino acid get through the cell membrane?

Question

diffusion, facilitated diffusion, endocytosis, filtration, Na/K pump

Answer 1

In the small intestine amino acids enter the gut cells through a membrane protein that also transports sodium at the same time it is a case of facilitated diffusion down an existing gradient.

Answer 2

- Facilitated diffusion through a protein channel which provides hydrophilic interior for transport of amino acid into the cell.

- This can also occur by secondary active transport (also known as co-transport) Example- Na+- Lysine co-transport

Answer 3

facilitated diffusion