Question

Question 3
Next, Demetri tests these three sugar (sucrose) solutions for the presence of glucose:

sugar and water
sugar and lactase enzyme in water
sugar and heated lactase enzyme in water
Test Tube 4 - Sugar (Sucrose): Demetri fills the fourth test tube one-quarter full of sugar. He then adds water to the test tube until it is three-quarters full and stirs until the sugar dissolves. Demetri then inserts the test strip for 30 seconds and records its color.



Test Tube 5 - Sugar (Sucrose) and Lactase Enzyme: Demetri fills the fifth test tube one-quarter full of sugar. He then adds the lactase-and-water solution until the test tube is three-quarters full. He thoroughly mixes the solution and inserts the test strip for 30 seconds. Demetri then records the color of the test strip.



Test Tube 6 - Sugar (Sucrose) and Heated Lactase Enzyme: Demetri fills the sixth test tube one-quarter full of sugar. He then adds the heated lactase-and-water solution until the test tube is three-quarters full. He thoroughly mixes the solution and inserts the test strip for 30 seconds. Demetri then records the color of the test strip.



According to the test strips, which of these sugar solutions contained glucose?

Answer 1

Answer:

All of the test tubes has glucose

It is composed of two molecules of simple sugars—glucose and galactose—that are chemically bonded together. The enzyme lactase breaks down lactose into glucose and galactose, which are easily digested by humans, And With the aid of the enzyme, lactase, the substrate, lactose, is broken down into two products, glucose and galactose. People who don't make enough lactase have trouble digesting milk products and are lactose intolerant.

Answer 2

Answer:

All of these tubes has glucose

Explanation:

It is composed for molecules of simple sugar - glucose and galactose -that are chemically bonded together .The enzyme lactase breaks down lactose into glucose and galactose ,which are easily digisted by humans, And with the aid of enzyme ,lactose, the substrate, lactose ,is breaking down into two products ,glucose and galactose .People who don't make enough lactose have trouble digesting milk products and lactose intolerant.

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