2009 June Unit 1 Flashcards
1
Q
Apart from reduced elasticity explain how changes to lung tissues affect gas exchange
A
Alveolar walls thicken
Longer diffusion pathway
Scarred tissue reduces surface area
2
Q
Describe role of enzymes in digestion in breakdown of starch
A
Amylase Starch to maltose Maltase Maltose to glucose Hydrolysis If glycosidic bonds
3
Q
Deceive orosseces of absorbtion of starch digestion
A
Glucose moves in with NA Via carouse protein Sodium removes by active transport Into blood Maintains low conc of NA Glucose moves into blood By diffusion
