Cystic Fibrosis

Question 1

cystic fibrosis

Answer 1

a serious genetic disease caused by a recessive allele which affects the production of mucus by epithelial cells

Question 2

exocrine glands

Answer 2

glands which produce substances and secrete them to where they are needed through a small tube call a duct

Question 3

villi

Answer 3

finger-like projections of the lining of the small intestine which increase the surface area for the absorption of digested food

Question 4

duodenum

Answer 4

the first part of the gut (small intestine) after the stomach

Question 5

pancreatic duct

Answer 5

the duct from the pancreas which carries digestive enzymes made in the pancreas into the duodenum

Question 6

insulin

Answer 6

a hormone made in the pancreas involved in the regulation of blood sugar levels

Question 8

explain how mutations result in CF

Answer 8

• the mutation is in the gene coding for the CFTR protein

• therefore the CFTR does not function correctly

• resulting in very thick sticky mucus