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Prokaryotes
Prokaryotes

... 4. Bacterial cell wall is composed of ______________. Gram positive bacteria have _______ peptidoglycan while Gram negative bacteria have ____________ peptidoglycan. 5. Gram-___________ bacteria have lipopolysaccharides on their cell wall, meaning they are ___________ resistant to antibiotics, which ...
Bacteria Internet Lab
Bacteria Internet Lab

... 5. From which of these two groups did eukaryotic cells evolve? 6. Take a look at the picture of Escherichia coli on the right of the screen. What is the shape of this bacterium? 7. List two of the important functions of bacteria in nature. IV. Beneficial Bacteria Go to the following URL to answer t ...
Chapter 1 Introduction to Microbiology
Chapter 1 Introduction to Microbiology

... Gram Negative (G-) Cell Wall  Two layers; outer is much thinner than G+ cell walls  Outer wall contains several molecules, including Lipid A which is responsible for producing fever and shock in infections with G- bacteria ...
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... separate and distinct from the nucleoid DNA. The plasmid is typically thousands of times smaller than the nucleoid DNA but often very important as it may carry genes for antibiotic drug resistance ...
characterization of procaryotic cells inner structures in bacteria
characterization of procaryotic cells inner structures in bacteria

... plants, to use carbon dioxide as the main source of carbon. – Energy is obtained in these microorganims by the oxidation of anorganic compounds or from sunlight. ...
The aim of this work is demonstrate probiotic characteristic of some
The aim of this work is demonstrate probiotic characteristic of some

... ...
Bacteria - St. Paul`s Orange
Bacteria - St. Paul`s Orange

... More Cool Bacteria Facts  600 types of bacteria live on the skin  Saliva contains about 6 different kinds ...
Pathogens: An organism that causes disease.
Pathogens: An organism that causes disease.

... • Genetic disorders (only to their children) ...
Chapter 28 - Dr. Jennifer Capers
Chapter 28 - Dr. Jennifer Capers

... • The size of prokaryotic cells led to their being undiscovered for most of human history • In 1546, Italian physician Girolamo Fracastoro suggested that disease was caused by unseen ...
BioMi -1 WHICH STATEMENT IS NOT TRUE AS A GENERAL RULE
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... A) gram-positive Bacteria. B) gram-negative Bacteria. C) archaeal cells. D) eukaryotic cells. AN ENDOTOXIN IS A) the toxic portion of the LPS. B) a toxin produced within archaeal cells. C) a toxin known for its primary attack on the epidermis of mammals. D) the toxin produced in the periplasm of mos ...
Biology of Plants
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... • Oldest organisms on Earth • The most dominant and successful forms of life • Great metabolic diversity and rapid rate of growth • Escherichia coli double in size every 20 min. ...
LOYOLA COLLEGE (AUTONOMOUS), CHENNAI – 600 034
LOYOLA COLLEGE (AUTONOMOUS), CHENNAI – 600 034

... 2. All membranes of free-living organisms have phospholipid bilayers, with the expection of a) Bacteria b) Fungi c) Archaebacteria d) Algae 3. Which of the following nucleoside diphosphates is used most often in carbohydrate anabolism? a) Uridine b) Thymosine c) Guanosine d) Adenosine 4. The transdu ...
Crossing The Membrane Worksheet
Crossing The Membrane Worksheet

... Name ______________________________ ...
File - Mr. Swords` Classes
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...  Live in places with sunlight because they make their own food  Cyanobacteria – have chlorophyll and use photosynthesis  Most are blue-green, some are red or yellow  Streams, ponds, moist areas of land ...
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Control of microbial growth: Sterilization and disinfectants

... • Disinfect: kill most microbes, especially harmful ones, but probably not spores which are resistant. • Disinfectant: use on inanimate objects like benchtops, etc. • Antiseptic: used to disinfect living tissue; must be gentler. • Bacteriostatic: keeps bacteria from growing. • Bactericidal: kills th ...
Cell Structure and Taxonomy
Cell Structure and Taxonomy

... Highly durable dehydrated cells with thick walls and additional layers, formed internal to the bacterial cell membrane. Resistant to desiccation, heat, ...
Scientists look to Australian frogs for new antibiotics ANSTO scientist
Scientists look to Australian frogs for new antibiotics ANSTO scientist

... new antibiotics for treating infectious diseases. Antibiotics are very useful for treating infections caused by bacteria. Different classes of antibiotics kill bacteria by attacking different components of the cell; some antibiotics perforate the cell membrane, some inhibit the function of essential ...
M. pneumoniae
M. pneumoniae

... Morphology  The smallest among prokaryotic microganisms ...
Bacteria - Cloudfront.net
Bacteria - Cloudfront.net

... • Cell wall - some rigid and others flexible. • Cell membrane - same as other cells. • Cytoplasm - same as other cells. • DNA - a single, circular chromosome (Plasmid) located in the cytoplasm. Bacteria do not have a nucleus. • Capsule - a thick, gel-like, protective coating on some bacteria cells. ...
Penicillin
Penicillin

... • Lack nuclei • Typically lack or have very few internal membranes • Cytoplasm contains ribosomes, storage granules that hold glycogen, lipid, or phosphate compounds • Metabolic enzymes are associated with the plasma membrane, especially where it is infolded to form limited internal membranes – such ...
Jeopardy
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... A: What is acellular, req’ host, DNA or RNA? ...
Chapter 13: Antimicrobial Therapy
Chapter 13: Antimicrobial Therapy

... •Act as detergents and distort bacterial cell membranes •Bind to phospholipids in the membrane •Especially effective against gram-negative bacteria which have an outer membrane Disrupters of Cell Membranes •Polymyxins (A, B, C, D, and E) •Obtained from soil bacterium Bacillus polymyxa •Usually appli ...
Bacteria & Viruses - St. Mary Catholic Secondary School
Bacteria & Viruses - St. Mary Catholic Secondary School

... • Gram stain is a concoction of crystal violet and iodine – it will react with the cell wall of certain bacteria. • Gram-positive bacteria retain the gram stain and appear dark purple. These bacteria a very common and usually not ...
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Bacterial cell structure



Bacteria, despite their simplicity, contain a well-developed cell structure which is responsible for many of their unique biological structures. Many structural features are unique to bacteria and are not found among archaea or eukaryotes. Because of the simplicity of bacteria relative to larger organisms and the ease with which they can be manipulated experimentally, the cell structure of bacteria has been well studied, revealing many biochemical principles that have been subsequently applied to other organisms.
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