PSIO 201 1st Edition Lecture 5 Outline of Last Lecture Cellular Level of Organization III: Membrane TransportOutline of Current Lecture I. Cellular Level of Organization: Cell CytoplasmII. Carrier Mediated TransportIII. OrganellesA) MembranousB) Non-Membranous IV. Endoplasmic Reticulum and Golgi ApparatusCurrent LectureCarrier Mediated Transport:1. Facilitated Diffusion2. Active TransportA) Primary Active Transport- Immediate Energy ATP; goes from inside the cell to outside thecellB) 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 shapeThese 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 stability3. Microtubules- contains tubulin protein and influence cell structure, shape, motility, and movement. (Movement comes from the cilia and flagella)A) Membranous Organelles – 1. Nucleus2. Mitochondria- outer and inner membrane; major site of cell energy metabolism3. (E.g. metabolism used in glycolysis)B) Non-Membranous- 1. Centrioles/ Centrosomes- influence cell motility, cell division2. Cilia and Flagella- used for cell motility; flagella tend to be longer3. 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. Lipid and Protein synthesis (smooth ER)2. Storage Protein (smooth ER)3. Transports within cell (rough ER)4. 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
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