Exam 2 Bio

Notes

Exam 2 Biology Study online at https://quizlet.com/_hy7ngn 1. Plasma Membrane The membrane at the boundary of every cell that acts as a selective barrier 2. The Phospholipid Encloses organelles and is selectively permeable 3. Selectively Permeable means A membrane will allow some molecules to pass through, while blocking others 4. Phospholipids Primary structural compo- nent of cellular membrane 5. Phospholipid head Negative, polar 6. Phospholipid fatty acid tail Neutral charge, non-polar 7. What adds the selectively permeable feature too phospholipid bi-layer Proteins 8. The Fluid-Mosiac Model describes the structure of cell membranes 9. Most abundant molecule in the membrane phospholipids 10. Phospholipids have 2 fatty acid chains and 1 phosphate group 11. Phospholipids are Negative 12. Phospholipids are amphipathic meaning... they have both hydropho- bic and hydrophilic prop- erties 1 / 11 Exam 2 Biology Study online at https://quizlet.com/_hy7ngn 13. The lipid component of membranes are synthesized from the Smooth Er 14. Simple Diffusion movement of a solute from an area of high con- centration to an area of low concentration, does not require energy 15. Passive Transport Simpl...