AP Biology Chapter 6 Notes( Pictures and Diagrams included)
Chapter 6 - A Tour of the Cell CELL THEORY: All living things are made of one or more cells Basic unit of structure and function in living things Cells are derived from existing cells ALL CELLS?1. Surrounded by plasma (cell) membrane. . . PLASMA MEMBRANE (more to come in Chapter 7) Phospholipid bilayer (polar/philic heads face out; nonpolar/phobic tails face in) SELECTIVELY PERMEABLE (due to phobic tails)? - allow certain types of molecules to pass through; but not others 2. Semifluid substance within membrane. . . CYTOSOL - semifluid substance (Cytoplasm = cytosol + organelles) 3. Contain chromosomes (contain DNA). . . DNA/Chromosomes (carry genes)