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Mark the odd one out.
A. Gestrin
B. Trypsin
C. Secretin
D. Enterocrinin

Answer
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Hint: Gestrin, trypsin, secretin and enterocrinin are different enzymes and hormones present in the body. Hormones are chemical messengers that are directly secreted into the blood, taking them to the body's organs and tissues to perform their functions whereas an enzyme is a catalyst. It accelerates the rate in the cell of a particular chemical reaction.

Complete answer: A progestin (female hormone) is a gestrin Tablet. It helps to sustain pregnancy by encouraging the embryo's attachment to the womb's lining and improving the flow of blood to the placenta. It also relaxes the muscles of the uterus, thereby avoiding premature labour. In the pancreas, trypsin is developed as the inactive proenzyme trypsinogen. Trypsin in the duodenum catalyzes peptide bond hydrolysis, breaking down proteins into smaller peptides. The release of a watery bicarbonate solution from the pancreatic and bile duct epithelium is induced by secretin. To buffer the incoming protons of the acidic chyme, secretin increases water and bicarbonate secretion from the duodenal Brunner's glands. It also improves the effects of cholecystokinin to induce the secretion of pancreas and gallbladder digestive enzymes and bile, respectively. The intestinal juice activator is enterocrinin. The epithelium of the whole small intestine is secreted by enterocrinin. It causes the Lieberkühn crypts to be stimulated to release enzymes into the intestinal juice. Trypsin, secretin and enterocrinin are enzymes involved in the digestion process, while gestrin is a hormone that regulates pregnancy.
Hence, the correct answer is option A.

Note: Edema (swelling), bloating, headache, depression, weakness, altered libido, irregular menstrual cycle, gastrointestinal irregularities and excessive hair growth are the most common side effects of gestrin.