What would cause antibodies to attack the cells of the body? The cells support bacterial growth.
The cells are worn out and need to be replaced.
The antibodies mistakenly identify the cells as foreign material.
The red blood cells are malfunctioning.

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?