If your knees hurt after a one-week walking regimen ,which one of the following workout changes would be most appropriate? a. jog in a swimming pool. b. switch to anaerobic exercise. c. take a week's rest from exercise. d. wear different shoes.

Diseases may arise when proteins fail to fold correctly in their last stages of processing and/or are directed towards the lysosome rather than towards the cell membrane. cystic fibrosis is an example of this type of disease. in cystic fibrosis, a functional ion channel is sent to the lysosome for destruction rather than being sent to the plasma membrane. given this observation, the cellular component that is most likely the cause of the disease is the