1What is the route of HCO3- from a tissue capillary located in a knee to the plasma of a pulmonary capillary? (Not all components are listed) 1 inferior vena cava - left atrium - pulmonary trunk - pulmonary arteriole 2 superior vena cava - left atrium - pulmonary vein - pulmonary venule 3 inferior vena cava - right atrium - pulmonary trunk - pulmonary arteriole 4superior vena cava - right atrium - pulmonary vein - pulmonary venule 2The gastric glands are of four types. What is the wrong combination of statements with respect to the role of each type? 1parietal cells produce HCl 2mucus cells produce an alkaline substance 3 principal cells produce pepsinogen 4gastrointestinal endocrinocytes produce digest enzymes 3What is the wrong statement about the large intestine? 1it specializes in water absorption 2it harbors bacteria useful to humans 3the colon is the main section followed by the rectum 4it is involved in the synthesis of vitamin C.