State True or False: The enzyme pepsinogen is the active form of pepsin that digests proteins. True or False: The digestive enzymes produced by the small intestine are secreted into its lumen. A. True B. False True or False: Secretin is released from the duodenum in response to ac...
Pepsin cleaves peptide bonds after aromatic amino acids such as phenylalanine and tyrosine.Answer and Explanation: The inactive form of pepsin is known as pepsinogen. It requires cleavage of some amino acid residues before it forms active pepsin. Pepsinogen is...Become a member and unlock all Stud...
There is a wide range of specific inhibitors that can bind to the active site and effectively remove the activity of pepsin. One of the best known ones is pepstatin [5], that, at acidic pH, tightly binds to the catalytic site of both pepsin and its precursor: pepsinogen [6], [7]. ...
AMCase was resistant to endogenous pepsin C digestion and remained active in the mouse stomach extract at pH 2.0. The AMCase mRNA levels were much higher than those of four major gastric proteins and two housekeeping genes and comparable to the level of pepsinogen C in the mouse stomach ...
of pepsinogen C in the mouse stomach tissues. Furthermore, AMCase was expressed in the gastric pepsinogen-synthesizing chief cells. The enzyme was also stable and active in the presence of trypsin and chymotrypsin at pH 7.6, where pepsin C was completely degraded. Mouse AMCase degraded polymeric...
For example, the enzymes of acidophilic bacterium will have different optimum pH values than a human's enzymes. Answer and Explanation: Pepsin is a digestive enzyme that is produced by the gastric chief cells of the stomach. This enzyme is released in its inactive form as pepsinogen......
Is the statement true or false? State True or False: The enzyme pepsinogen is the active form of pepsin that digests proteins. All steroid hormones are synthesized from the amino acid tyrosine. a. True b. False PER (protein efficiency rati...
Pepsinogen mRNA levels exceeded the GAPDH in tested all stomach tissues (Fig.2). It was very high in the pig stomach tissue and it was almost 3,000 times higher than that of GAPDH. In the bovine and dog stomach tissues, the pepsinogen mRNA levels were 40 and 120 times higher than that...
Enzymes are proteins that serve as catalysts, speeding up the chemical reactions in the body. Learn about their function, such as lowering the activation energy, and discover the effect of temperature, saturation, and pH to the function of enzymes. ...
a. Which organ produces pepsin? b. How does the enzyme help in digestion of food? Fill in the blank: A wave of smooth muscle contractions within the lumen of the gastrointestinal tract is called ___. ___ sac of digestive enzymes. What cell structure is this. Which of the...