organisms

Question 1

work done insects

Answer 1

lactic acid in muscle cells forces the tracheoles to empty out the water to dissiovel the lactic acid in blood emptying tracoles so more space for air the come in

Question 2

plant gas exhange steps

Answer 2

o2 out and co2 in
by stomata diffuse in - spongey mesophull then palisade for photosytehsis- conc gradient

Question 3

protien digestion

Answer 3

1- endopeptases in stomach
2- endopeptases and exopepatses in illumen
3- memb bound dipepetides- break the

Question 4

digestion and abroption of lipids

Answer 4

1- bile salt emulsify- at lumen
2- lipase hydrolyse ester bonds glycerol and fatty acids left alone
3- micelle forms around the glycerol and fatty acids
4- miccle move across lumen and allows the entry into the membrane of the epithelial cell
5- micelle opens up- at epitlial
6- fatty acitds and glycerol go to golgi and reform trigylcerides and combine with a protien= chylomivoron
chlymicron released by exocytosios