Pepsinogen is an inactive form of the enzyme pepsin. Pepsin is a protease, meaning a hydrolytic enzyme, one that breaks down its substrate. In the stomach, pepsin breaks down proteins to smaller polypeptides and amino acids. The environment in the stomach is very acidic due to hydrochloric acid (HCl), with a pH of 1.5 - 2. The HCl will clip off portions of the pepsinogen, thereby activating the pepsin. Pepsin will only be active in these very acidic environments. Sodium hydroxide (NaOH) will neutralize the acid and therfore raise the pH of the stomach. We can see this in the following chemical equation.
HCl + NaOH → H2O + NaCl
When a base is added to the very acidic chyme in the stomach, the pH suddenly increases. Subsequently, the pepsinogen cannot be activated into pepsin and any pepsin is denatured because it is out of is pH range. If sodium hydroxide is introduced in the stomach, no proteins will be hydrolyzed.
In the digestive process, pepsinogen is inactivated when the chyme is dumped into the small intestine. Because the small intestine is not protected like the stomach, secretin stimulates the pancreas to secrete bicarbonate ions. Bicarb ions neutralize the acidic solution to about 7-8. The presence of the bicarb ions stops the protein-digesting process.
The chemical name is Sodium Hydroxide. It is made of Na+ ions and OH- ions.
There is no reaction between zinc hydroxide and sodium hydroxide.
Sodium hydroxide.
Sodium hydroxide is a base.
When a metal reacts with sodium hydroxide, it produces hydrogen gas and a metal hydroxide. For example, when aluminum reacts with sodium hydroxide, it forms sodium aluminate and hydrogen gas.
The chemical name is Sodium Hydroxide. It is made of Na+ ions and OH- ions.
There is no reaction between zinc hydroxide and sodium hydroxide.
The symbol for Sodium Hydroxide is NaoH
Sodium hydroxide.
sodium hydroxide is itself a chemical. It can disassociate into a sodium cation and a hydroxide anion
No, sodium hydroxide is a compound.
Sodium hydroxide is a strong base, so it will turn blue litmus paper to red. This color change is due to the alkaline nature of sodium hydroxide which reacts with the blue litmus paper to change its color.
The reaction of zinc nitrate and excess sodium hydroxide begins with precipitation of zinc hydroxide ( Zn(OH)2 ), followed by dissolvement after adding excess sodium hydroxide ( 2 OH- ) to formation of zinc aat-ions ( [Zn(OH)4]2- )
Sodium hydroxide is a strong base and will turn red litmus paper blue. This color change occurs due to the high concentration of hydroxide ions present in the sodium hydroxide solution, which react with the indicator dye in the litmus paper, causing the color change.
A litmus test is one way of comparing. Sodium Chloride is a neutral salt and so would have no effect on litmus. Sodium Hydroxide is a base, and would turn litmus blue.
Sodium hydroxide.
Sodium hydroxide is a base.