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microbiology

Chapter 25 The History of Life on Earth

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Biology
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microbiology
Evolutionary biology
Cell Biology
RNA
Origin of life
Abiogenesis
organism
bacteria
Photosynthesis
cell
Prokaryote
Environment

Chapter 25- Origin of life on earth The earth is estimated to have formed about 4.6 years ago condensing from a cloud of dust and rock. For the first few hundred millions years the Earth was being bombarded by huge chunks of rock and ice. The collisions created enough eat to vaporise the adavible water and prevent seas from forming. The early earth had a reducing atmosphere (electron adding) and there was no oxygen in the atmosphere, and as a result there was no need for an ozone layer to protect the earth from high levels of UV radiation.

Chapter 19 Viruses

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Biology
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Bacteriophages
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Caudovirales
Lytic cycle
Virus
Lysogenic cycle
Provirus
Prophage
RNA virus
health

Viruses Chapter 19 Wow Are they alive???? Viruses are little more than genes packed into protein coats They lack the structures and metabolic activity found in most cells But they infect a host Cause a variety of diseases And can kill So it would be better to say they are in a nebulous state Not alive, not dead But instead living a borrowed life Structure Unlike bacteria Viruses cannot be cultured in media They need a host Not just nutrients The first isolated virus Was Tobacco Mosaic Virus Many viruses are smaller than a ribosome Millions can fit on a pin head Many viruses do not have the typical genome They can have double stranded DNA Single stranded DNA Single stranded RNA Double stranded RNA Can be called a DNA or RNA virus Depending on what it has

TEST BANK

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Biology
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Virus
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DNA polymerase
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Lytic cycle
Cyanobacteria
Hepatitis D
DNA Replication
RNA virus
health

CHAPTER 19 PROKARYOTES AND VIRUSES Test Bank Test Bank Chapter 19 Prokaryotes and Viruses Multiple-Choice Questions 1. What historic figure died of a disease that had symptoms consistent with West Nile encephalitis? a. Alexander the Great b. Cleopatra c. Julius Caesar d. Queen Elizabeth I e. Socrates Section: 19:I&I Bloom?s: knowledge Ans: a 2. West Nile virus is transmitted to humans by a. birds b. cats c. other humans d. mosquitoes e. all of these Section: 19:I&I Bloom?s: knowledge Ans: d 3. Which of the following could be called "pathogens"? a. viruses b. bacteria c. viroids d. viruses and viroids e. viruses, bacteria, and viroids Section: 19: I&I Bloom?s: knowledge Ans: e 4. All prokaryotic cells have a. cell membranes b. nuclei c. ribosomes

Cambell biology 7th edition introduction notes

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Biology
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Lemurs
Clinical pathology
pathology
Archaea
organism
bacteria
Eukaryote
evolution
Ring-tailed lemur
Levels of Organization
health

BIO 1003 and BIO 1015L Welcome! Helene Eisenman Barbour contact info: [email protected] Office 506B Tuesdays 2:00 ? 3:00 or by appointment 646-660-6252 Organization of the Courses BIO 1003 Laboratory and lecture are combined into one course. You will receive one grade. BIO 1015L/1016 (Pathways) Laboratory and lecture are two courses. Mandatory recitation sections for lecture. You will receive two separate grades. Important Information Attendance Behavior Academic Integrity Electronic Blackboard & Email Required Materials Laboratory Study Habits You must attend class on exam days!!!! 1. In the event of an emergency: a) You must notify me by phone/email immediately b) You must provide documentation of the emergency

Prokaryotes

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Biology
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Prokaryote
Archaea
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Microorganism
cell
Eukaryote
organism
fission
Chromosome
Messenger RNA
health
Environment
Biology AP Prokaryotes Campbell

Overview: They?re (Almost) Everywhere! ? Prokaryotes were the earliest organisms on Earth. ? Today, they still dominate the biosphere. ? Their collective biomass outweighs all eukaryotes combined at least tenfold. ? More prokaryotes inhabit a handful of fertile soil or the mouth or skin of a human than the total number of people who have ever lived. ? Prokaryotes are wherever there is life. ? They thrive in habitats that are too cold, too hot, too salty, too acidic, or too alkaline for any eukaryote. ? Prokaryotes have even been discovered in rocks two miles below the surface of the Earth. ? Why have these organisms dominated the biosphere since the origin of life on Earth? ? Prokaryotes display diverse adaptations that allow them to inhabit many environments.

AP BIOLOGY CH 26

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Biology
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Historical geology
Geological history of Earth
microbiology
Evolutionary biology
Paleontology
Geologic time scale
Eukaryote
organism
Prokaryote
Archaea
bacteria
#AP Biology #AP Bio #Biology

Chapter 26 The Tree of Life An Introduction to Biological Diversity Overview: Changing Life on a Changing Earth Life is a continuum Extending from the earliest organisms to the great variety of species that exist today Geological events that alter environments Change the course of biological evolution Conversely, life changes the planet that it inhabits Figure 26.1 Geologic history and biological history have been episodic Marked by what were in essence revolutions that opened many new ways of life Concept 26.1: Conditions on early Earth made the origin of life possible Most biologists now think that it is at least a credible hypothesis That chemical and physical processes on early Earth produced very simple cells through a sequence of stages

Biology Unit 1 2013

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Biology
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microbiology
Evolutionary biology
evolution
Evidence of common descent
Oxygen
organism
bacteria
Archaea
Autotroph
Prokaryote
Photosynthesis

BIOLOGY Unit 1: Biology and Science Science- an iterative process, ?tentative? truth, a way of asking questions and explaining observations Hypothesis?????????????....?.Theory?????????????.?.Law Specific????.????.????.????.????.????.????.?????General Less Certain???????.????.????.?????..????????More Certain Living vs. non Characteristics of living things: Reproduce (crystals + fire) Response to environment (fire) Use energy (fire) Transport (fire) Organized (crystals are stacked-easy) OR Complex (human body) Drawing the Line When chemicals ?care? enough to maintain their activities (homeostasis) to separate and control a piece of their air condition a piece of Columbus (one home) Chaos Biodiversity Organisms & ecosystems Can be viewed as information systems Store information

Biology Lecture on Prokaryotes

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Biology
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microbiology
bacteria
Archaea
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cell
Microorganism
Gram-positive bacteria
Peptidoglycan
Biofilm
Eukaryote
metabolism
health

+ Biology 10504 Chapter 27: Bacteria and Archaea + About me 2 Bachelors? degree: Concordia College in Minnesota Ph.D. in Biomedical Science: University of California, San Diego Moved to Fort Worth Jan 2010. Stayed in sunny San Diego for postdoctoral fellowship studying Anthrax. + Upper level courses I teach General Microbiology (BIOL 30303) 2 hr lecture + 3 hr lab (spring) Medical Microbiolgy (BIOL 40303) 3 hr lecture (Fall) + iClicker Questions I am taking BIOL 10504 because A)? I?m pre-med B)? I?m interested in another pre-health profession (pre-vet, pre-dental, etc.) C)? I?m interested in going to graduate school in Biology D)? I just like Biology and wanted to learn more about it E)? None of the above 4 +

Campbell Biology Chapter 28

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Biology
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Biology
Eukaryotes
microbiology
Protista
Amoeboids
Cell Biology
Protist
organelle
Microorganism
Algae
Amoebozoa
Multicellular organism

Chapter 28- Protists Overview: Living Small Protist- the informal name of the group of mostly unicellular eukaryotes Protists constitute a polyphyletic group, and Protista is no longer valid as a kingdom caused by systematics. Molecular data shows there is genetic diversity. Concept 28.1: Most eukaryotes are single celled organisms Protists are eukaryotes most are unicellular, but there are some colonial and multicellular species Protists are the most diverse of the eukaryotes Single celled protists can be very complex, as all biological functions are carried out by organelles in each individual cell don?t see the division of labor like in multicellular eukaryotes, every single cell has all the organelles a protist needs to survive

Campbell Biology Chapter 27

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Biology
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microbiology
Prokaryote
bacteria
Archaea
cell
fission
Plasmid
Eukaryote
Chromosome
Heterocyst
Pilus
health

Chapter 27- Bacteria and Archaea Prokaryotes live everywhere and are microscopic Concept 27.1: Structural and functional adaptations contribute to prokaryotic success Earth's first organisms were likely prokaryotes Most unicellular, although some form colonies Between .5-5 micrometers, much smaller than eukaryotic cells(10-100 micrometers) Many shapes Spheres (cocci) Rods (bacilli) Spirals Figure 27.2 Prokaryotic cell has a cell wall, which maintains cell shape, protects the cell, and prevents it from bursting in a hypotonic environment (Eukaryotes have a cell wall made of cellulose or chitin) Capsule- polysaccharide or protein layer that covers prokaryotes

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