Which enzyme produce bicarbonate in pancreatic acini and in duodenal cells? hint: it is the same enzyme that is active in erythrocytes.

Which of the following is true of metabolism in its entirety in all organisms? a) metabolism depends on a constant supply of energy from food. b) metabolism uses all of an organism's resources. c) metabolism consists of all the energy transformation reactions in an organism. d) metabolism manages the increase of entropy in an organism.