Week 1 for Exam 2 notes
Week 1 for Exam 2 notes 1510
Popular in General Biology
verified elite notetaker
Popular in Biological Sciences
This 2 page Class Notes was uploaded by Neha Bhagirath on Monday February 8, 2016. The Class Notes belongs to 1510 at Wayne State University taught by Karen Myhr in Winter 2016. Since its upload, it has received 48 views. For similar materials see General Biology in Biological Sciences at Wayne State University.
Reviews for Week 1 for Exam 2 notes
Report this Material
What is Karma?
Karma is the currency of StudySoup.
Date Created: 02/08/16
ON EXAM 2 February 5 Prokaryote (not membrane bound organelles) and eukaryote (membrane bound organelles) similarities: 1)nucleoidprokaryote or nucleuseukaryote for DNA 2)cytoplasm (liquidy with organelles) (organelles plus cytosolliquid) 3)ribosomesin prokaryotes, not membrane bound 4)plasma membraneprokaryotes have a phospholipid bilayer membrane around the whole cell (embedded with proteins) 5)cytoskeleton determines the shape of the cell. The cytoskeleton is a bunch of proteins that make the shape of the cell. the shape determines the function so the cytoskeleton is important prokaryotes can’t process proteins as well as eukaryotes Prokaryotic cells simplest organisms nucleoid, not nucleus single circular chromosome instead of a bunch of linear chromosomes CELL WALLfor prokaryotes it is ___? (look up) two domains with prokaryotesarchaea and bacteria cellulose makes the plant cell wall instead of peptidoglycan for prokaryotes bacteria come in many shapes and sizes. There is fluid in the inside. Cytoplasm, ribosomes (little brown dots), nucleoid, plasma membrane > cell wall >capsule, flagellum, pili Bacterial cell walls Peptidoglycan (unlike cell walls of plants, fungi, archaea, most protists) protection, shape, structure antibiotic targets linking of proteins to surround the prokaryotes? what will rupture the peptidoglycan cell wall? we do not have peptidoglycan code covering in our cells (this is only in prokaryotes) because it kills all the good bacteria in the gut as well good bacteria are for digestion, etc Flagella: prokaryotes have none, one, or more. Rotary motion propels cell. ATP goes to making that cytoskeleton move and that move the prokaryote in the direction of the movement of the flagella Eukaryotic Cells membrane bound nucleus and organelles (compartments) have linear chromosomes Plasma membrane is the membrane outside the cell plant cells are also eukaryotic organelles that are the same: mitochondria, nucleus, endoplasmic reticulum, golgi vacuole (for water regulation)only in plants? Mitochondria and Chloroplasts: energy processing mitochondria is in plant cells and they use it with chloroplasts to make ATP? Mitochondria in all eukaryotes compartments: outer membrane, intermembrane space (between 2 membranes), inner membrane has cristae (folds), matrix (space inside the inner membrane)? inner membrane oxidative metabolism (that’s where the oxygen is being used) these structures are critical for the FUNCTION of the mitochondria have their own DNA (circular, like prokaryote DNA) 1000 micrometers in a millimetre Chloroplasts in plants (some other eukaryotes) chlorophyll for photosynthesis surrounded by 2 membranes thylakoids sacs within inner membrane grana stacks of thylakoids have their own DNA chloroplasts AND mitochondria are ATP generators, have double membranes, in plants and animals Endosymbiosis read up on this Unknown archaeon became nucleus protobacterium became mitochondrion cyanobacterium became chloroplast Chapter 5 Membranes critical for the function of mitochondria and chloroplasts and cells phospholipid bilayer with proteins fluid mosaic model Cell membrane components 1)Phospholipid bilayer (permeability barrier) 2)Transmembrane proteins in the bilayer that spread across the whole membrane and link to interior peripheral proteins (integral proteins) 3)Interior protein network (peripheral proteins) 4)Cell surface markers (glycoproteins and glycolipids)