33-0 Exam 3 was curved. Make sure to look at the grade scale to determine your letter grade. Three points will be deducted if we can't read your first or last name. Make sure you have all 6 pages. This molecule will diffuse through a lipid membrane without the help of a transport protein.
Cholesterol keeps membranes from solidifying in cold temperatures.
People specializing in thermodynamics would consider passive transport to be a spontaneous event. Embedded in the plasma membrane are transport proteins that allow molecules to be transported in or out of the cell. A semi-permeable membrane separates these solutions. This membrane is permeable to water but not to ions or sucrose. Initially, the solution in side B, with respect to side A, is a.