16. if a person has symptoms of a stroke that last a few
minutes, it means that
(athe person has had a transient ischemic attack
(tia)
b. it is not a dangerous situation because it was
temporary
c. the person needs to lie down at once
d. no further treatment is needed

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?