Question

1. Describe the changes in your potato sample when placed in distilled water. Based on these changes, was the water hypertonic, isotonic, or hypotonic compared to the cells of the potato? Explain your reasoning in terms of the flow of water into or out of the potato cells. 2, Describe the changes in your potato sample when placed in 0.9% NaCl solution. Based on these changes, was the 0.9% NaCl hypertonic, isotonic, or hypotonic compared to the cells of the potato? Explain your reasoning in terms of the flow of water into or out of the potato cells. 3, Describe the changes in your potato sample when placed in 20% NaCl solution. Based on these changes, was the 20% NaCl hypertonic, isotonic, or hypotonic compared to the cells of the potato? Explain your reasoning in terms of the flow of water into or out of the potato cells. 4. Why is it important that intravenous injections be isotonic in saline (NaCI) compared to a patient's blood cells? (What will happen if the injected solutions are hypertonic? What will happen if they are hypotonic?) 5. From the results of your dialysis experiment, was glucose able to pass through the dialysis tubing? Support your answer with your experimental results. 6. From the results of your dialysis experiment, was starch able to pass through the dialysis tubing? Support your answer with your experimental resuits. 7. From the results of your dialysis experiment, did the solution inside the tubing contain glucose after 20 minutes of soaking? Support your answer with your 8. From the results of your dialysis experiment, did the solution inside the tubing contain starch after 20 minutes of soaking? Support your answer with your experimental results. 9. Based on the structures of starch and glucose presented in this lab, explain why each molecule was (or was not) able to pass through the dialysis tubing.

Answer 1