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LIFE 102 (201)

Nucleic acids, cell fractionation, prokaryotic vs. eukaryotic cells, nucleus, ribosomes, endoplasmic reticulum, golgi appartus, mitochondria, chloroplasts, lysosomes, vacuoles, cytoskeleton

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Colorado State University
Life Science
LIFE 102
Louis Bjostad

4 FebruaryExam 1February 14Monday50 questionsChap 17Concept 55 Nucleic acids store and transmit hereditary informationNucleic acids are made of monomers called nucleotidesEach nucleotide consists ofNitrogenous basePentose sugarPhosphate groupDeoxyribose in DNA ribose in RNADNA is more stableOverview The Fundamental Units of LifeAll organisms are made of cells tiny packagesThe cell is the simplest collection of matter that can liveCells are surrounded by membranes made of a phospholipid fabric interwoven with cholesterol and proteinCells are filled with even smaller packages called organelles that also have membranesScanning electron microscopes SEMs focus a beam to electrons onto the surface of a specimenProviding images that look 3DTransmission electron microscopes TEMs focus a beam of electrons through a specimenTEMs are used mainly to study the internal structure of cells
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