Bio Review Test 2

Bio Review Test 2 - Bio Review Test 2 CHAPTER 7 What is inside a cell depends on type of cell(Pro Euk Prokaryote vs Eukaryote o Prokaryote

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Bio Review Test 2 CHAPTER 7 Prokaryote vs Eukaryote o Prokaryote Phospholipids bilayer Cell wall Cytoplasm Chromosome in nucleoid region Contains genes Super-looped No membrane closed nucleus Ribosomes Everywhere!! Made of RNA Cytoskeleton Helpful mostly In food, in and outside human body fighting bacteria, genetic engineering o Eukaryote Size Complexity Filled with organelles Individual units Separate functions Can do different jobs at once (multi-task) Organelles interact with each other Nucleus Ribosomes In fluid part of cytoplasm Protein synthesis Genes to proteins Organelles in EUKARYOTIC CELLS o Rough Endoplasmic Reticulum Has ribosomes Tubes and sacs Flat sheets of membranes Attached to nuclear envelope Site of synthesis for secreted proteins o Smooth Endoplasmic Reticulum No ribosomes attached to membrane
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More tubular Continuous membrane Connected to Rough ER Fatty acid and phospholipid synthesis (membrane maker) Breaks down hydrophobic toxins o Golgi Apparatus Flattened, stacked membranous sacs Flat membranes do not connect to each other Receiving face = cis Transmitting face = trans Receive material, put them together, pass them on UPS store – receive things, package it all together, sends it off Receive protein from Smooth ER, pass on to other locations o Peroxisomes Double membrane Lumen inside Site of oxidation reactions Detoxifies a product o Lysosomes A little stomach within a cell Acidic lumen-filled sacs Breaks down products o Mitochondria In plant and animal cells Double membrane (inner and outer) Inner membrane has multiple folds to increase surface area for more ribosomes to come through for more ATP Proteins inside Bean shaped Respiration occurs (glucose ATP) Power generator o Chloroplasts In plant cells and fungi only Green Double membrane Folded inner membrane like stack of pennies (thylakoids) Site of photosynthesis Converts sunlight to ATP o Cytoskeleton Invisible Skeleton of fibers Provide support and structure Uses microtubules, intermediate filaments, and microfilaments
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Microtubules: largest, protein, tubulin, hollow tube, movement of materials in cell, moves cell Microfilaments: smallest, actin protein, maintains shape, cell division, movement Intermediate filaments: mesh work of wire, thicker than microfilament, maintains cell and tissue integrity o Cell Wall Plants cells only Support and structure in cell o Vacuole Membrane bound Big white space in cell Contains liquid and chemicals Store water and/or ions Mostly in plants and fungi More water in it = more pressure to make plant stand Waste dump
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This note was uploaded on 03/17/2011 for the course BIO 110 taught by Professor Tudge during the Fall '09 term at American.

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Bio Review Test 2 - Bio Review Test 2 CHAPTER 7 What is inside a cell depends on type of cell(Pro Euk Prokaryote vs Eukaryote o Prokaryote

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