Question

Why is NaCl solution added in the starch solution while testing salivary amylase activity ?​

Answer 1

IKI is normally light yellow in color; in the presence of starch it turns a deep blue. IKI can therefore be used to test for the presence and activity of the enzyme amylase, which breaks starch into maltose disaccharide units.

Answer 2

If we added saliva on starch, the salivary amylase present in saliva gradually acts on the starch and converts it into maltose.

Explanation:

• Starch keeps giving blue colour with iodine till it is completely digested into maltose.
• Addition of NaCl increases the rate of the reaction and catalyses the reaction better.
• Thus, the hydrolysis of starch by salivary amylase increases.
• It is the binding of one chloride ion at a specific site that induces the allosteric activation of the salivary amylase

 

TO KNOW MORE:

What is the definition of starch

https://brainly.in/question/2589367

What is mean by Sugar maltose​

https://brainly.in/question/9651437