Prokaryotes and the Origins of Metabolic Diversity
... • Gram– Less peptidoclycan, crystal violet easily rinsed away but safranin dye is retained – Stains pink – Lipopolysaccharides are often toxic – Outer membrane helps defend against host and antibiotics (prevent cross link in peptidoglycan) ...
... • Gram– Less peptidoclycan, crystal violet easily rinsed away but safranin dye is retained – Stains pink – Lipopolysaccharides are often toxic – Outer membrane helps defend against host and antibiotics (prevent cross link in peptidoglycan) ...
Mini-Medical School on Infectious Diseases
... ✦“Virulent” or “pathogenic” - capable of causing disease. ...
... ✦“Virulent” or “pathogenic” - capable of causing disease. ...
Diseases Caused by Bacteria and Viruses
... dramatic increase in life expectancy during the past two centuries? There is an increased understanding of how to prevent and cure bacterial infections. ...
... dramatic increase in life expectancy during the past two centuries? There is an increased understanding of how to prevent and cure bacterial infections. ...
Paleontology and Life, part 2
... • Mostly very small in size – between 500 nm and 2µm – 1000 nm = 1µm; 1000 µm = 1 mm; 1000 mm = 1 m ...
... • Mostly very small in size – between 500 nm and 2µm – 1000 nm = 1µm; 1000 µm = 1 mm; 1000 mm = 1 m ...
Bacteria - Brookwood High School
... • cell walls without peptidoglycan (carbohydrate) • autotrophic or heterotrophic • live anaerobically • live in harsh environments (great salt lakes, hot springs) • ex: Methanogens (in digestive tract of animals), Halophiles (salt-loving) ...
... • cell walls without peptidoglycan (carbohydrate) • autotrophic or heterotrophic • live anaerobically • live in harsh environments (great salt lakes, hot springs) • ex: Methanogens (in digestive tract of animals), Halophiles (salt-loving) ...
Wet Mount Proficiency Test 2009B Critique
... This photomicrograph shows the characteristic shape of a sperm cell: a tapered tail and an oval head. Note that the width of the pseudohyphae (item #3) does not change, while the tail of a sperm cell shows a definite taper toward the end. While not shown here, a budding yeast cell occasionally may b ...
... This photomicrograph shows the characteristic shape of a sperm cell: a tapered tail and an oval head. Note that the width of the pseudohyphae (item #3) does not change, while the tail of a sperm cell shows a definite taper toward the end. While not shown here, a budding yeast cell occasionally may b ...
Bacteria - holyoke
... In Gram-positive bacteria, the purple crystal violet stain is trapped by the layer of peptidoglycan which forms the outer layer of the cell. In Gram-negative bacteria, the outer membrane of lipopolysaccharides prevents the stain from reaching the peptidoglycan layer. The outer membrane is then perm ...
... In Gram-positive bacteria, the purple crystal violet stain is trapped by the layer of peptidoglycan which forms the outer layer of the cell. In Gram-negative bacteria, the outer membrane of lipopolysaccharides prevents the stain from reaching the peptidoglycan layer. The outer membrane is then perm ...
326: Microbiology Review: Pathogens and Disease
... is also called the plasma membrane or plasmalemma. The cell membrane consists of a double phospholipid layer that contains proteins and carbohydrates. Phospholipids allow free passage of water molecules through the cell membrane via osmosis. The cell is either hydrophilic (attracts water) or hydroph ...
... is also called the plasma membrane or plasmalemma. The cell membrane consists of a double phospholipid layer that contains proteins and carbohydrates. Phospholipids allow free passage of water molecules through the cell membrane via osmosis. The cell is either hydrophilic (attracts water) or hydroph ...
Enter Topic Title in each section above
... Q. Why are doctors reluctant to prescribe antibiotics to patients suffering from the common cold? ...
... Q. Why are doctors reluctant to prescribe antibiotics to patients suffering from the common cold? ...
Koch`s postulates
... • After the first use, scientific names may be abbreviated with the first letter of the genus and the specific epithet: • Staphylococcus aureus and Esherichia coli are found in the human body. S. aureus is on skin and E. coli, in the large intestine. ...
... • After the first use, scientific names may be abbreviated with the first letter of the genus and the specific epithet: • Staphylococcus aureus and Esherichia coli are found in the human body. S. aureus is on skin and E. coli, in the large intestine. ...
Antibiotics - Noadswood Science
... • Antibiotics do not damage your own cells • If used too frequently bacteria can become resistant to _____________ • It is very difficult to find drugs for viruses because they reproduce rapidly and inside ________, it is difficult to develop drugs that kill viruses without damaging your cells ...
... • Antibiotics do not damage your own cells • If used too frequently bacteria can become resistant to _____________ • It is very difficult to find drugs for viruses because they reproduce rapidly and inside ________, it is difficult to develop drugs that kill viruses without damaging your cells ...
the genetics of viruses and bacteria
... – Most walls contain peptidoglycan (sugars cross-linked with polypeptides) except archaea – Gram positive – large amounts of peptidoglycan (stain violet) – Gram negative – small amounts of peptidoglycan (stain red) • Often more threatening due to lipopolysaccharides on cell walls that are often toxi ...
... – Most walls contain peptidoglycan (sugars cross-linked with polypeptides) except archaea – Gram positive – large amounts of peptidoglycan (stain violet) – Gram negative – small amounts of peptidoglycan (stain red) • Often more threatening due to lipopolysaccharides on cell walls that are often toxi ...
Bacteria Virtual Lab Procedure Analysis
... environmental conditions, bacteria can be grown in a laboratory. They are usually cultivated in sterile petri dishes containing a gelatin-like nutrient called agar. Bacteria reproduce rapidly. Each single cell divides about every twenty minutes. When a population of bacteria has multiplied to a thou ...
... environmental conditions, bacteria can be grown in a laboratory. They are usually cultivated in sterile petri dishes containing a gelatin-like nutrient called agar. Bacteria reproduce rapidly. Each single cell divides about every twenty minutes. When a population of bacteria has multiplied to a thou ...
2016-2017 Bacteria Virtual Lab
... environmental conditions, bacteria can be grown in a laboratory. They are usually cultivated in sterile petri dishes containing a gelatin-like nutrient called agar. Bacteria reproduce rapidly. Each single cell divides about every twenty minutes. When a population of bacteria has multiplied to a thou ...
... environmental conditions, bacteria can be grown in a laboratory. They are usually cultivated in sterile petri dishes containing a gelatin-like nutrient called agar. Bacteria reproduce rapidly. Each single cell divides about every twenty minutes. When a population of bacteria has multiplied to a thou ...
Biology 20 Diversity of Life PowerPoint part 2.pps
... 3. In what ways are cilia and flagella similar? How are they different? - Cilia and flagella are both used for movement in protists. Both are formed from the cell membrane and are permanent structures. However, cilia are shorter and more hair like and can be in rows or clusters that cover parts of a ...
... 3. In what ways are cilia and flagella similar? How are they different? - Cilia and flagella are both used for movement in protists. Both are formed from the cell membrane and are permanent structures. However, cilia are shorter and more hair like and can be in rows or clusters that cover parts of a ...
Mechanisms of Antibiotic Resistance
... Detection of resistance mechanisms e.g β-lactamases Oxacillin Resistance Screening Agar – for rapid detection of MRSA (Methicillin-resistant Staphylococcus aureus), only MRSA can grow ...
... Detection of resistance mechanisms e.g β-lactamases Oxacillin Resistance Screening Agar – for rapid detection of MRSA (Methicillin-resistant Staphylococcus aureus), only MRSA can grow ...
المحاضرة الثالثة عشر Thirteenth lecture
... Different types of diseases are caused by bacteria include: cholera, many sexually diseases األمراض الجنسية, and certain types of food poisoning التسمم الغذائي However, more bacteria are beneficial مفيدة. o Bacteria in our intestines أمعائنا produce important vitamins. o Bacteria recycle ...
... Different types of diseases are caused by bacteria include: cholera, many sexually diseases األمراض الجنسية, and certain types of food poisoning التسمم الغذائي However, more bacteria are beneficial مفيدة. o Bacteria in our intestines أمعائنا produce important vitamins. o Bacteria recycle ...
Bacteria
... • Escherischia coli bacteria in your intestines help you digest; they also make vitamin K and vitamin B12. • Bacteria living inside the roots of plants, such as alfalfa, take up nitrogen gas from the air and convert it into a form the plant can use (nitrates) • A few bacteria produce antibiotic ...
... • Escherischia coli bacteria in your intestines help you digest; they also make vitamin K and vitamin B12. • Bacteria living inside the roots of plants, such as alfalfa, take up nitrogen gas from the air and convert it into a form the plant can use (nitrates) • A few bacteria produce antibiotic ...
Document
... • Stem cells are cells found in most, if not all, multi-cellular organisms. They are characterized by the ability to renew themselves through mitotic cell division and differentiating into a diverse range of specialized cell types. • The two broad types of mammalian stem cells are: embryonic stem ce ...
... • Stem cells are cells found in most, if not all, multi-cellular organisms. They are characterized by the ability to renew themselves through mitotic cell division and differentiating into a diverse range of specialized cell types. • The two broad types of mammalian stem cells are: embryonic stem ce ...
cell wall Capsule
... Plants would have to be fertilized to get the proper amounts of usable nitrogen. Without it, the plants would die. ...
... Plants would have to be fertilized to get the proper amounts of usable nitrogen. Without it, the plants would die. ...
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.