A. Lungs and intestine B. Placenta and intestine C. Plasma membrane D. Stomach and intestine
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A. Colon B. Appendix C. Stomach D. None of these
A. HCl acid is too dilute B. The epithelial cells are resistant to the action of HCl acid C. HCl is neutralised by alkaline gastric juice D. The epithelial cells are covered with a mucous secretion
A. Saliva and gastric juice B. Saliva and pancreatic juice C. Gasric and pancreatic juice D. Gastric and duodenal juice
A. Crypts of liberkuhn B. Villi C. Peyer’s patches D. Brunner’s glands
A. Bitter B. Salty C. Sour D. Sweet
A. Amylase, pepsin and rennin B. Lipase, pepsin and rennin C. Trypsin, rennin and pepsin D. Pepsine
A. Amylase B. Lipase C. Proteinase D. Saliva
A. Heat B. Kinetic energy C. Light D. Potential energy
A. To digest cellulose B. To absorb water C. To absorb food D. To store stool