Physiology章节测试课后答案2024春

第六章测试

1.The activator of pepsinogen is （ ）
A:Na+ B:intrinsic factor C:K+ D:gastrin E:HCl
答案:E
2.Most of nutrients are absorbed in（ ）
A:the stomach B:the duodenum C:the small intestine D:the large intestine E:the esophagus and the stomach 3.Which is wrong in the following descriptions about the effects of hydrochloric acid? （ ）
A:killing many swallowed bacteria B:promoting the absorption of calcium and ferrum C:promoting the secretion of pancreatic juice D:promoting the absorption of vitamin B12 E:activating the pepsinogen 4.The substance that is involved in the absorption of vitamin B12 is ___.（ ）
A:pepsin B:intrinsic factor C:HCl D:Na+ E:Cl- 5.The mechanism by which the acidity chyme in the small intestine promotes the secretion of pancreatic juice is ___.（ ）
A:the release of the secretin by mucous membrane of the small intestine B:the release of the gastrin by mucous membrane of the small intestine C:the excitation of the vagus nerve D:the excitation of sympathetic nerve E:the release of the cholecystokinin by mucous membrane of the small intestine 6.Most digestion occurs in（ ）
A:the esophagus B:the stomach C:the small intestine D:the mouth E:the large intestine 7.Which of these statements about gastric secretion of HCl is false? （ ）
A:HCl is needed for the conversion of pepsinogen to pepsin B:HCl can kill bacteria C:HCl is needed for maximum activity of pepsin D:HCl hydrolyzes peptide bonds E:HCl is secreted by parietal cells 8.Original site of slow wave (basic electrical rhythm, BER) of the gut smooth muscle is （ ）
A:I cell B:G cell C:S cell D:Cajal cell 9.The order from fast to slow of gastric emptying rate in stomach is （ ）
A:sugar＞fat＞protein B:protein＞sugar＞fat C:sugar＞protein＞fat D:protein＞fat＞sugar E:fat＞sugar＞protein 10.The most active of pepsin is under the pH value （ ）
A:pH 0.9～1.5 B:pH 2～3 C:pH 2～2.5 D:pH 2～3.5 E:pH 1.8～3.5