State two functions of the proteins in the plasma membrane. [2] The diagram below shows the fluid mosaic model of the plasma membrane. Identify, A. [1] B. [1] C. [1] How do the properties of phospholipids ensure that the membrane remains fluid? [2] Describe the purpose of cholesterol in plasma membranes [2] Suggest why marine organisms living in polar regions have a very high proportion of cholesterol in their membranes [1]
State two functions of the proteins in the plasma membrane. [2] The diagram below shows the fluid mosaic model of the plasma membrane. Identify, A. [1] B. [1] C. [1] How do the properties of phospholipids ensure that the membrane remains fluid? [2] Describe the purpose of cholesterol in plasma membranes [2] Suggest why marine organisms living in polar regions have a very high proportion of cholesterol in their membranes [1]
hw_fluid_mosaic_model.docx