PSIO 201 1st Edition Lecture 5 Outline of Last Lecture Cellular Level of Organization III Membrane Transport Outline of Current Lecture I Cellular Level of Organization Cell Cytoplasm II Carrier Mediated Transport III Organelles A Membranous B Non Membranous IV Endoplasmic Reticulum and Golgi Apparatus Current Lecture Carrier Mediated Transport 1 Facilitated Diffusion 2 Active Transport A Primary Active Transport Immediate Energy ATP goes from inside the cell to outside the cell B Secondary Active Transport Most common to produce nutrients A concentration goes from higher outside the cell and brings an inorganic or organic compound with it inside the cell Revolving door Anti porters Na goes from out to in the cell but that energy rush allows another molecule to go out Symporters Two molecules rush into the cell at the same time Vesicular Transport include Endocytosis brings something to the cell and Exocytosis exports or releases something from the cell Organelles A Membranous includes plasma membrane mitochondria and nucleus B Non Membranous includes cytoskeleton and ribosomes The Cytoskeleton is composed of three different fibers 1 Microfilaments contain actin protein and influence cell motility and shape These notes represent a detailed interpretation of the professor s lecture GradeBuddy is best used as a supplement to your own notes not as a substitute 2 Intermediate Filaments contain keratin protein and influence cell structure and stability 3 Microtubules contains tubulin protein and influence cell structure shape motility and movement Movement comes from the cilia and flagella A Membranous Organelles 1 Nucleus 2 Mitochondria outer and inner membrane major site of cell energy metabolism 3 E g metabolism used in glycolysis B Non Membranous1 Centrioles Centrosomes influence cell motility cell division 2 Cilia and Flagella used for cell motility flagella tend to be longer 3 Microvilli used by microfilaments to increase surface area of plasma membrane intestines 4 Ribosomes site of protein synthesis ATP Glycolysis breaking of bonds and produces 2 ATP s Glycolysis consumes 02 produces C02 and ATP Is considered Anaerobic Endoplasmic Reticulum membranous network serves four functions 1 2 3 4 Lipid and Protein synthesis smooth ER Storage Protein smooth ER Transports within cell rough ER Detoxification rough ER Golgi Apparatus packages proteins made in endoplasmic reticulum and process those proteins for secretions Then ships the proteins or keeps some for later use
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