Where is the CF gene normally expressed?Group of answer choicesMany tissues throughout the bodyOnly in the lungsOnly in the lungs and the pancreasIt is not normally expressed (it is only expressed in CF patients)

What effect does a faulty CF gene have in the lungs?Group of answer choicesThe production of thick mucous that "clogs" the lungsA reduction in the occurrence of respiratory infectionsThe lungs are unaffected when the CF gene is faultyA lack of digestive enzyme secretions

The major role of the protein encoded by the CF gene is to control the transport of which two ions?Group of answer choicesSodium (Na+) and Chloride (Cl-)Chloride (Cl-) and Potassium (K+)Potassium (K+) and Sodium (Na+)Water (H20) and Sodium (Na+)

Select the single correct statement about the effect of CF on the pancreas.Group of answer choicesCF results in the production of thick digestive enzyme secretions that get "clogged" in the pancreasCF causes a build up of mucous in the pancreas that is difficult for the patient to clearCF results in the production of thick bile that gets "clogged" in the pancreasCF results in the production of thick insulin secretions that get "clogged" in the pancreas

What area of the body (that is affected by CF) does not affect the CF patients' health?Group of answer choicesThe sweat glandsThe lungsThe pancreasThe gastrointestinal tract

One type of mutation in the CFTR protein prevents the transport of chloride ions through the channel. What is most likely to be observed in the lungs of patients with this mutation?A. Dehydrated epithelial cellsB. Dehydrated mucusC. Mucus with excess waterD. Mucus with a high electrolyte concentration