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Online Assignment B- Chapters 7 & 8 (Part II)

Online Assignment B- Chapters 7 & 8 (Part II)

Q • Question 1 1.875 out of 1.875 points Would substances be able to pass through the plasma membrane if the phospholipid tails of the plasma membrane were both saturated fatty acids? • Question 2 0 out of 1.875 points Which of the following is correct? • Question 3 1.875 out of 1.875 points An artificial cell consisting of an aqueous solution enclosed in a selectively permeable membrane (but with no cell wall) is immersed in a beaker containing an aqueous solution. The outside environment concentration consists of 0.01 M glucose and the inside of the cell has a concentration of 5.0 M glucose. The plasma membrane is permeable to water and monosaccharides, but impermeable to the disaccharides. Complete the following for the image below: Is the solution inside the cell isotonic, hypotonic, or hypertonic? • Question 4 1.875 out of 1.875 points An artificial cell consisting of an aqueous solution enclosed in a selectively permeable membrane (but with no cell wall) is immersed in a beaker containing an aqueous solution. The outside environment concentration consists of 0.01 M glucose and the inside of the cell has a concentration of 5.0 M glucose. The plasma membrane is permeable to water and monosaccharides, but impermeable to the disaccharides. Complete the following for the image below: Is the glucose going down or against its concentration gradient? Is the movement of the solute in the cell going out of the cell? • Question 5 1.875 out of 1.875 points An artificial cell consisting of an aqueous solution enclosed in a selectively permeable membrane (but with no cell wall) is immersed in a beaker containing an aqueous solution. The outside environment concentration consists of 0.01 M glucose and the inside of the cell has a concentration of 5.0 M glucose. The plasma membrane is permeable to water and monosaccharides, but impermeable to the disaccharides. Complete the following for the image below: Will the artificial cell become lyse, shrivel, or stay the same?

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1.Selected Answer: No, saturated fatty acids would cause the plasma membrane to loss the fluidity it has by having some unsaturated fatty acids present. 2.Selected Answer: Signal transduction proteins helps transport proteins across the plasma membrane. 3.Selected Answer: hypertonic 4.Selected Answer: Down...Yes 5.Selected Answer: lyse