HSCI 100 Lecture Notes - Glycolysis, Endomembrane System, Mitochondrion

• School: Simon Fraser University
• Department: Health Sciences
• Course: HSCI 100
• Professor: Nienkevan Houten

Document Summary

What does the cell membrane do: receive information. Import and export molecules: capacity for movement and expansion. > hydrophobic tails point towards each other and holds together the plasma membrane: contains cholesterol for support. Fluid mosaic model: has carbohydrates in proteins and lipids on the outer layer. > allows certain things to move through it and regulate other things going in and out the cell. The random movement of molecules from a higher concentration to a lower concentration: facilitated diffusion. The movement of a substance from a region of high concentration to low concentration with the help of a membrane protein. No not require energy: active transport. The movement of molecules from a low concentration to a higher concentration using. Isotonic: solution that have equal amounts of solute inside and outside the cell: no effect of the cell, endocytosis. Transports molecules or cells into the cell via invagination of the plasma membrane to form a vesicle.