Cystic Fibrosis Quiz

What is the approximate number of people affected by cystic fibrosis in the United States?

• 10,000

• 70,000

• 30,000

• 50,000

Which organ is NOT primarily affected by cystic fibrosis?

• Pancreas

• Heart

• Liver

• Lungs

What is the role of the CFTR protein in healthy individuals?

• Transports potassium ions into the cell

• Transports chloride ions out of the cell

• Transports calcium ions out of the cell

• Transports sodium ions into the cell

Why is the CFTR protein's transport mechanism considered unique?

• It transports ions against their concentration gradient

• It requires ATP but transports ions down their concentration gradient

• It uses passive transport

• It does not require ATP

What happens to the mucus in the respiratory system when CFTR is absent?

• It becomes thin and watery

• It does not trap bacteria

• It becomes thick and sticky

• It is effectively cleared by cilia