Physioex Exercise 1 Review Sheet
Activity 1
1. Size and concentration of the solute
2. It was too large to pass, as predicted
3. I predicted that the glucose would diffuse since it is small enough but the albumin is much too large to pass through the membrane. The experiment produced this result.
Activity 2
1. Neither way requires ATP but facilitated diffusion requires carrier protein molecules for diffusion to occur.
2. By increasing the number of carriers more glucose can pass at a time increasing the rate, as predicted.
3. It won't change since the concentrations are the same and the transport proteins are glucose carriers. The rate did not change because sodium chloride doesn't help nor hinder the diffusion of glucose.
Activity 3
1. The pressure will increase due to the increased concentration of sodium chloride. The pressure increased.
2. Neither one requires ATP. Simple diffusion is the movement of a solute from an area of HIGH to LOW solute concentration but osmosis is the movement of water from an area of LOW to High solute concentration.
3. Because water moves toward the HIGH concentration of solutes.
4. We know the pressure will increase in the albumin beaker because it is more impermeable than glucose. The pressure in the beaker containing the albumin increased despite the increased concentration of glucose because albumin has a much greater molecular weight.
Activity 4
1. Increasing the size of an opening allows more space for movement. For example, the more you open the nozzle of a hose the amount of water that comes out increases.
2. Powdered charcoal is too large to pass any of the membranes.
3. Pressure changed the speed of filtration but pressure does not affect the size of the solutes nor the pore size of the membrane.
Activity 5
1. The SP pump ejects 3 sodium ions per every 2 potassium ions coming in. 9:6 represents the ration of the SP pump
2. Predicted that no sodium would be transported because the coupled
1. Size and concentration of the solute
2. It was too large to pass, as predicted
3. I predicted that the glucose would diffuse since it is small enough but the albumin is much too large to pass through the membrane. The experiment produced this result.
Activity 2
1. Neither way requires ATP but facilitated diffusion requires carrier protein molecules for diffusion to occur.
2. By increasing the number of carriers more glucose can pass at a time increasing the rate, as predicted.
3. It won't change since the concentrations are the same and the transport proteins are glucose carriers. The rate did not change because sodium chloride doesn't help nor hinder the diffusion of glucose.
Activity 3
1. The pressure will increase due to the increased concentration of sodium chloride. The pressure increased.
2. Neither one requires ATP. Simple diffusion is the movement of a solute from an area of HIGH to LOW solute concentration but osmosis is the movement of water from an area of LOW to High solute concentration.
3. Because water moves toward the HIGH concentration of solutes.
4. We know the pressure will increase in the albumin beaker because it is more impermeable than glucose. The pressure in the beaker containing the albumin increased despite the increased concentration of glucose because albumin has a much greater molecular weight.
Activity 4
1. Increasing the size of an opening allows more space for movement. For example, the more you open the nozzle of a hose the amount of water that comes out increases.
2. Powdered charcoal is too large to pass any of the membranes.
3. Pressure changed the speed of filtration but pressure does not affect the size of the solutes nor the pore size of the membrane.
Activity 5
1. The SP pump ejects 3 sodium ions per every 2 potassium ions coming in. 9:6 represents the ration of the SP pump
2. Predicted that no sodium would be transported because the coupled