pling Learning Map A selectively permeable membrane divides a container in half.

Question

pling Learning Map A selectively permeable membrane divides a container in half. One half of the container. Side A, is filled with a starch solution, while whe other half, Side B, is filled with an iodine tincture. Starch is a large macromolecule that forms a milky white solution when dissolved. An iodine tincture contains very small iodide ions and is a brown solution. lodide ions turn dark blue when they react with starch molecules After several hours, Side A is dark blue, while Side B is brown. Which statement describes the diffusion of solutes through the membrane? ded the iodide ions, but the starch mol O Both the starch molecules and the iodide ions diffused through the membrane O The membrane excluded both the starch molecules and the iodide ions O The membrane excluded the starch molecules, but the iodide ions diffused through

Explanation / Answer

The answer is- the membrane excluded the starch molecules but the iodide ions diffused through.

The side A is blue but side B is brown that means iodine diffused through the membrane and reacted with starch on side A to give starch-iodide (a blur complex).

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