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To denature the protein. Pepsin can work pnly if the secondary structure of the protein is broken up.

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Q: Why is HCl used to start the pepsin reaction?
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Why does protein digestion require the presence of both pepsin and HCl?

Protein digestion requires the presence of both pepsin and HCl because pepsin needs an acidic environment to be able to "work" or do its job. Pepsin needs an environment with a pH around 2, which is roughly the pH of HCl. Therefore, HCl aids pepsin in protien digestions by creating an optimal environment for pepsin to work and digest proteins.


Did pepsin act in absence of HCL?

no,pepsin does not acts in the absence of hydrochloric acid


What do pepsin and amzlase break down?

Pepsin breaks down the proteins with the help of HCL. Pepsin works quicker nd better when the food is acidic, HCl makes the food acidic and helps pepsin break down Protein in food.


Effect of HCl on protein digestion by pepsin and starch digestion by sallivary amylase?

pepsin, coca


What is the secretion and enzymes found in the proventriculus?

Proventriculus secretes HCl (hydrochloric acid) and pepsin. HCl breaks down and prepares the ingested food to be more easily digested by pepsin. Pepsin is responsible for digestion of protein.


What enzymes are found in the stomach?

an enzyme found in the stomach is PEPSIN


Does HCI digest protein?

No,a digestive enzyme known as 'Pepsin' digests proteins.But yes,HCl is an acidic medium for 'Pepsin to work.Without HCl,our body cannot digest proteins.


What enzyme begins the breakdown of protein?

HCL (hydrochloric acid) begins digestion in stomach.


What compound is used up in the reaction HCI NaOH?

First, its HCl, with a lowercase L, not HCI. The reaction is HCl + NaOH --> H2O + NaCl


What is needed for the stomach protein digesting enzymes to become active?

Zymogens are stored in their inactive form and need the Hydrochloric acid (or HCl) to be activated. Specifically, HCl converts pepsinogen into pepsin which can then be used to convert more pepsinogen into pepsin.


What are the enzymes produced in the stomach?

The main enzyme in the Stomach is Pepsin which is used to digest protein. Only protein digestion occurs in the stomach and almostt no absorption, (only a little alcohol). This protein is not secreted as its active form (ie not as pepsin) but as the Zymogen (the inactive precursor to proteins) Pepsinogen which cleaves in a low pH to form the active enzyme.


What chemical compound has been used up in the reaction between sodium hydroxide and hcl?

The reaction is NaOH +HCl = NaCl +H2O Both sodium hydroxide and Hydrochloric are "used up".