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biol 151, wk 1

by: Sandy Myint

biol 151, wk 1 BIO 151

Sandy Myint
Cal State Fullerton
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wk 1 notes
Cell and Molecular Biology
A. Miyamoto
Class Notes




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This 2 page Class Notes was uploaded by Sandy Myint on Saturday October 1, 2016. The Class Notes belongs to BIO 151 at California State University - Fullerton taught by A. Miyamoto in Fall 2016. Since its upload, it has received 68 views. For similar materials see Cell and Molecular Biology in Biology at California State University - Fullerton.

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Date Created: 10/01/16
BIO 151 WEEK 1 NOTES Lecture 1: CELLS AND BIODIVERSITY Objectives: 1. Cell theory 2. Properties of life 3. Compare prokaryotic and eukaryote cells 4. Evolutionary principles CELL THEORY  What are the 2 tenets of the cell theory? i. All living things are made up of cells ii. All cells arise from preexisting cells  Relevant to evolution and properties of life Properties of life – what does it mean to be living/ how are you different from a rock?) 1. Reproduce self 2. Metabolism a. Take in carbon and generate energy to synthesize the things that maintain you (lipids, proteins, nucleic acid, carbs) 3. Process info for reproduction and energy 4. Made of cells (smallest unit of life) PROKS VS EUKS  In the simplest case- a cell is a single compartment  Prok- o no membrane around nucleus o DNA compacted within cell  Euk- o multiple components o has membrane around nucleus o (10x in diameter than prok)  Endomembranes= create separate compartments within the cell’s cytoplasm All cells have in common : mitochondria, cytoplasm, plasma membrane, cytosol, ribosomes (needed to make protein-> DNA) , nucleus Prokaryotes: Plant: cell wall, vacuoles, chloroplast animal cells : ribosomes, ER (rough and smooth), lysosomes, , golgi apparatus, EVOLUTIONARY PRINCIPLES Cells + evolution  biodiversity Evolution  Is a process o Species are related to each other through common ancestors o Species can change  Evolution explains HOW change in a population occurs over time o Natural selection  Requires heritable characteristics/ genes  Requires different versions of genes/characteristics to have different outcomes for reproduction, survival, etc o Genetic variation + environmental influences  NEW species How do we measure diversity?  Morphology- visual exam, microscopy  Gene sequence of shared components (ex: ribosomes- RNA + protein) o DNA:  Chemistry, structure, function  Mutation (can play into evolution)  Metabolism o Obtaining carbon/ carbon intake  Photosynthesis (plants/ autotrophs)  Ingestion (need to eat) o Generate energy (ATP)  Chemical thermodynamics  Cellular respiration


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