Question

Чому буква,яку ви написали слиною, стала синьою (або іншого кольору,не пам'ятаю,який вона говорила.Гадаю,ви знаете)? Як ферменти слини діють на крохмаль? Яка умова потрібна для того,щоб ферменти слини діяли ефективно? Чому клаптики тканини зафарбувалися в темно - фіолетовий колір?

Answer 1

Амілаза розщеплює крохмаль,
потрібна температура 37*С  

Answer 2

Літера не змінила кольору, оскільки крохмаль розщепила амілаза слини. На крохмаль діє амілаза, мальтаза. Умови - це температура 36.6, тобто температура тіла. Решта тканини стала фіолетовою, бо крохмаль вступив у реакцію з йодом

Answer 3

Why did the letter you wrote with saliva become blue (or another color, I don't remember what it said)?

The change in color of the letter you wrote with saliva could be due to a chemical reaction between the components of saliva and the material on which you wrote. Saliva contains various enzymes, proteins, and other substances that can react with certain chemicals or compounds, leading to a color change. Without specific information about the materials involved, it is difficult to provide a more detailed explanation.

How do saliva enzymes act on starch?

Saliva contains an enzyme called amylase, which plays a crucial role in the digestion of starch. Amylase breaks down starch into smaller molecules called maltose. This process is known as hydrolysis, where water molecules are used to break the chemical bonds in starch. Amylase specifically targets the alpha-1,4-glycosidic bonds in starch, cleaving them and producing maltose as a result.

What conditions are required for saliva enzymes to act effectively?

Saliva enzymes, including amylase, work optimally under specific conditions. The following factors can influence the effectiveness of saliva enzymes:

1. Temperature: Amylase functions best at body temperature, around 37 degrees Celsius (98.6 degrees Fahrenheit). Extreme temperatures can denature the enzyme, rendering it ineffective. 2. pH level: Amylase has an optimal pH range of 6.7 to 7.0, which is slightly acidic to neutral. Deviations from this range can affect the enzyme's activity. 3. Time: The longer the exposure of saliva enzymes to starch, the more time they have to break it down. However, there is an upper limit to their effectiveness, as prolonged exposure can lead to the denaturation of the enzymes.

Why did the fabric scraps turn dark purple?

The dark purple color of the fabric scraps could be the result of a chemical reaction between the components of the fabric and the substances present in saliva. Saliva contains various enzymes, proteins, and other compounds that can react with certain chemicals, causing a color change. Without specific information about the fabric and the substances in saliva, it is challenging to provide a more detailed explanation.