WitrynaIodine was permeable because it crossed the dialysis tubing and reacted with the starch, turning it purple/black. The starch was impermeable because it would have reacted with the iodine in the water outside the dialysis tubing if it was permeable. 2. If a membrane is selectively permeable, this means it has pores that allow some substances Witryna4 sty 2011 · selectively permeable means that the substance which is selectively permeable allows only selected materials to pass through it. Is a plastic baggie selectively permeable? Yes, plastic baggies are ...

Lab 7 Flashcards Quizlet

Witryna10 lip 2024 · Is the plastic baggie selectively permeable? Yes it is a selective permeable membrane, because it only allowed certain substance to pass through. What does it mean if water is permeable? If a substance is permeable, something such as … WitrynaThe membrane is selectively permeable because it allows some materials, but not others to move across the membrane. Small ions and molecules of oxygen (O 2), carbon dioxide ... At the end of the lab the students will see that the plastic baggie is semi-permeable to iodine. This is shown by the starch indicator that turns purple/black … law office of nancy l. cavey

Is a plastic baggie selectively permeable? - Answers

Witrynais clear that the plastic baggie is not permeable to starch, but is permeable to iodine. In a cell membrane, this is called selective permeability. In other words, the iodine can … Witrynaselectively permeable membrane. The cell membrane is a selectively permeable membrane that can be found in all cells. It allows some substances to pass through ... WitrynaSelectively permeable – a barrier that allows some chemicals to pass but not others. Indicator – a substance that changes color in the presence of the substance it indicates. ... The plastic baggie was permeable (allowed through) to which substance (iodine or starch)? 4. Is the plastic baggie selectively permeable? law office of nancy choate jackson tn