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AP Biology – Unit FRQ
Topic: Membranes as Essential Components of Cells
Student Information
Directions
Answers must be in essay form. Outline form is not acceptable. Labeled diagrams may be used
to supplement your discussion, but in no case will a diagram alone suffice. Read the entire question before you begin.
Membranes are essential components of all cells.
(a) Identify three macromolecules that are components of the plasma membrane
in a eukaryotic cell and discuss the structure and function of each.
(b) Explain how membranes participate in three of the following biological processes:
Muscle contraction
Fertilization of an egg
Chemiosmotic production of ATP
Intercellular signaling
Part (a)
Words: 0
Clearly name each macromolecule and link its structure to its specific function in the membrane.
Part (b)
Total words: 0
Choose three different processes and explain specifically how membranes are involved in each one.