Question

question 9 1 pts what happened to the color of the drops of the starch solution in the different spot plate wells (with the addition of iki) as the starch hydrolysis progresses from the beginning to the end? color changed from (start, first well)________to (end, last well)________ amber to black light blue to orange amber to light blue black to amber light blue to light purple red to light blue

Explanation:

Starch reacts with IKI (iodine - potassium iodide) to form a dark - blue or black color. As starch hydrolysis progresses, the starch is broken down into smaller sugars. IKI does not form a dark color with these smaller sugars. At the start, when there is a lot of starch, the color with IKI is black. As hydrolysis occurs and starch is depleted, the color becomes the color of the IKI solution itself, which is amber.

Answer:

D. Black to Amber