ES 2030 Lecture Notes - Lecture 2: Mitochondrion, Golgi Apparatus, Organelle

• School: App State
• Department: Exercise Science
• Course: ES 2030
• Professor: Moody, Anne

Document Summary

Chapter 3 cytology: 3 main components of the cell and their basic functions. Surrounds or protects the cell, external barrier. Cells interior, where all the individual parts of cell can be found, everything between nucleus and plasma membrane. Control center of cell, dictator: the importance of each of the structures of the cell membrane (as a fluid mosaic model). Plasma membrane separates intracellular fluids from extracellular fluids. The membrane also controls what moves in and out (gatekeeper) (selectively permeable, so only certain things can pass through: recognize the differences between passive, active, and vesicular transport. Simple diffusion (anything that moves from a level of high concentration to a level of low concentration) (kinetic energy) Facilitated diffusion (transportation of glucose, amino acids, and ions) (to pass in and out of the cell these molecules attach to a protein) (kinetic energy) Filtration: separation of water and solutes (happens because of differences in pressure) ex. blood enters kidney, kidney filters blood (pressure change)