Cyanophyta (bluegreen bacteria; Chloroxybacteria) Introduction to Cyanophyta I. II. III. IV. V. VI. Some Superlatives: Intro to Cyanobacteria Some Superlatives General Cellular Features Diversity in Reproduction Diversity in Morphology Prochlorophytes • 1st group of algae (3-4 bya) • 1st O2 producers • survive in diverse environments in ice‚ on soil‚ on bark‚ on rocks halophilic‚ thermophilic marine‚ freshwater symbiotic • Nitrogen fixation General Cellular Structure
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Micro Test #1 Unit 1 Question 1 2 out of 2 points | | | Viral host range is limited by Answer | | | | | Selected Answer: | Type of host cell receptors on cell membrane | Correct Answer: | Type of host cell receptors on cell membrane | | | | | Question 2 2 out of 2 points | | | Which type of microscope achieves the greatest resolution and highest magnification? Answer | | | | | Selected Answer: | Electron | Correct Answer: | Electron |
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Microbiology! 1) Groups of Organisms (7): Eukaryote: TRUE nucleus 1. Fungi 4. Bacteria 2. Algae 5. Rickettsia 3. Protozoa ! Prokaryote: NO Nucleus Ribosome is the only Organelle 6. Mycoplasma (7. Viruses: No cell structure‚ ARE NOT CELLS) Microorganisms are: ! UBIQUITOUS! ! HARMLESS IN THEIR NORMAL HABITAT ! OPPORTUNISTIC (If they leave their normal habitat and get into us) 2) Roles of Microorganisms: (Bacteria and Fungi are “Semi-Good”) - digestion -
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Week 1 Chapter 3 Staining Lab Quiz SCI/250 SCI250 Week 1 Chapter 3 Staining Lab Quiz (6.7 points each) Check or underline the correct answer Section: Multiple Choice 1. Which of the following stains is used frequently to identify Mycobacterium and other bacteria whose cell walls contain high amounts of lipids? Gram stain Schaeffer-Fulton stain Acid-fast stain Lipid stain Spore Stain 2. Which of the following stains is used to classify microorganisms based on their cell wall
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Bacillus anthracis in pure culture and injected animals with the bacteria. He then observed that the microbe injected into the animals caused anthrax. Koch was also able to determine the life cycle of Bacillus anthracis. It consists of vegetative and endospore morphologies which alternate based on nutrient availability. There is evidence which shows that the bacteria’s ability to cause anthrax depends on its ability to complete its life cycle in a regulated manner. Koch’s study showed that there is a causal
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Toxoplasma gondii: A Review of Parasitology‚ Pathology‚ and Epidemiology Toxoplasma gondii: A Review of Parasitology‚ Pathology‚ and Epidemiology Parasites are naturally “clever‚” yet insidious organisms. You may have a parasite inside you right now‚ without even knowing it. An effective
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Bacterial diseases: Introduction Bacterial diseases include any type of illness or disease caused by bacteria‚ a type of microbe. Microbes are tiny organisms that cannot be seen without a microscope and include viruses‚ fungi‚ and some parasites as well as bacteria. The vast majority of bacteria do not cause disease‚ and many bacteria are actually helpful and even necessary to good health. Millions of bacteria normally live on the skin and in the intestines and can also be found on the genitalia
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B.Sc. First Year Semester – I Paper I .Fundamentals of Microbiology Credit - 1 1 Scope & relevance of Microbiology i) ii) iii) Definition & concepts Types of microorganism Distribution of microorganisms in nature 2. Development of Microbiology as a Scientific Discipline 1.1 History i) ii) iii) iv) v) vi) Credit – 2 Early observation of microorganisms Spontaneous generation conflict : Contribution of scientists Recognition of the microbial role in diseases. Koch’s postulates Recognition of microbial
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1. State a possible hypothesis for Redi’s experiment. -Hypothesis for Redi’s experiment is that maggots come from larva of flies and that the meats only serve as food for the developing insects. 2. Which of the three jars in Redi’s experiment would be considered the control and why? -The jar that was left uncovered in the experiment would be considered the control because this jar represented the meat as it would normally be found with the maggots attached. 3. Give a brief explanation
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Clostridium Difficile | | Clostridium Difficile is a Gram-positive‚ toxin-producing anaerobic bacterium belonging to the family Clostridiaceae of the Clostridiales. Though strictly oxygen-intolerant‚ C. Difficile is able to produce aero tolerant endospores under unfavorable conditions that are capable of persisting in an open environment for years. C. Difficile is a commensalist species typically housed in the colonic fecal flora of a fairly small subset of the child population‚ with the number of
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