1. Answer the following questions about the pancreas. (a) Whatis the general role of the pancreas in digestion? (b) When does thehepatopancreatic duct open? (c) What would you guess is the reasonthat many of the digestive enzymes produced by the pancreas arereleased as zymogens, rather than as fully functional enzymes?
2. Answer the following questions regarding the large intestine.(a) What is the main substance absorbed from the large intestine?(b) What do you consider the main function of the large intestine?(c) How would you characterize bacteria that live in our largeintestines: as parasites? symbionts? pathogens? other? Explain.
3.(a) The liquid that gets modified to have become urine comesfrom where? (b) What structure in a kidney carries out filtration?(c) What is present in blood that is not present in the filtrate?(d) What is the difference between filtrate and urine? Note:Just state a few major differences here.