Key: a. Diffusion b. Osmosis c. Active Transport Into the Cells d. Active Transport Out of the Cells 1. Magnesium in Brackish water 2. Sodium in Sea water 3. Chlorine in Brackish water 4. Calcium in Seawater 5. Chlorine in Seawater 6. Potassium in Brackish water 7. Sulphate in Seawater 8. Chlorine in Brackish water 9. Magnesium in Seawater 10. Calcium in Brackish water ACTIVE TRANSPORT INTO AND OUT OF CELLS Active Transport makes it possible for cells to maintain intemal conditions that are chemically different from the surrounding medium. For cxample, some seaweed accumulate mineral ions such as potassium in their cells in concentrations much higher than the surrounding seawater by Active Transport of these ions into their cells. Problem: The following data shows concentrations of various ions inside the cells of seaweed that can grow in both seawater and estuarine (brackish) water. Note: Freshwater contains less than 1% dissolved substances. Salt water contains about 3.5% dissolved substances. Brackish (estuarine) water contains 1.8% dissolved substances. Key: a. Diffusion b. Osmosis c. Active Transport Into the Cells d. Active Transport Out of the Cells 1. Magnesium in Brackish water 2. Sodium in Sea water 3. Chlorine in Brackish water 4. Calcium in Seawater 5. Chlorine in Seawater 6. Potassium in Brackish water 7. Sulphate in Seawater 8. Chlorine in Brackish water 9. Magnesium in Seawater 10. Calcium in Brackish water.