An investigation is performed into digestion and absorption in the alimentary canal. The diagram shows the apparatus used. The Visking tubing allows small molecules such as glucose to pass through, but it does not allow large molecules such as starch to pass through. After one hour, the water samples in the beaker are tested using Benedict’s solution and iodine solution. Which colours are obtained?
- Aafter Benedict’s solution: blue; after iodine solution: blue-black
- Bafter Benedict’s solution: blue; after iodine solution: yellow-brown
- Cafter Benedict’s solution: red; after iodine solution: blue-black
- Dafter Benedict’s solution: red; after iodine solution: yellow-brown