Actinomycetes Study guides, Class notes & Summaries

EXAMINATION TESTS OF MICROBIOLOGY VIROLOGY AND IMMUNOLOGY DISCIPLINE Basic bacteriology 1. Who first designed the microscope, saw and sketched microbes? A. Louis Pasteur B. Robert Koch C. Ilya Mechnikov D. Dmitri Ivanovsky E. Antonie Philips van Leeuwenhoek 2. Without which structures, bacteria cannot carry out their activities? A. Capsule B. Spors C. Volutine granules D. Nucleoid E. Flagella 3. What structure determines the shape of a bacterial cell? A. Cytoplasmic membrane B. ...

Microbiology (Dr. AL, LSUE) Exam 2 Questions And 100% Correct Answers ________ were first identified in cancer-causing viruses and can induce ________ in infected cells. - B) Oncogenes; transformation ______________ are a diverse group of eukaryotic organisms that are similar in rRNA sequences, but quite different from each other in motility types and ecology. They have been used previously as a "catch-all" for organisms that couldn't be easily classified into other groups. ...

bacteria (microbiology) single-celled or noncellular spherical or spiral or rod-shaped organisms lacking chlorophyll that reproduce by fission autotrophic Self-nourishing; pertaining to the ability of an organism to produce its own nutrients from inorganic compounds heterotopic From one part of the body of a donor to another area of the body on a recipient pathogenic disease producing flagella long projections on a cell's surface whose whip like movement helps m...

Microbiology test banks (Exam II) which of the following has bacteriochlorophylls and uses alcohols for carbon? - CORRECT ANSWERS photoheterotroph Consider a culture medium on which only gram-positive organisms such as Staphylococcus aureus colonies can grow due to an elevated NaCl level. A yellow halo surrounds the growth, indicating the bacterium fermented a sugar in the medium, decreasing the pH as a result and changing the color of a pH indicator chemical. This type of medium woul...

Actinomycetes refer to prokaryotic organisms that are having a gram-positive cell wall. The morphology of actinomycetes is more or less similar to the fungi because they can also produce a filamentous, dense, branched and raised colony over the substrate like fungi. They are the true bacteria (not fungus) and placed in the kingdom “Bacteria” and a class “Actinobacteria”. These are ubiquitous in nature (commonly found in soil). In addition to soil, they are also very common in m...

Aquifer - answer-underground geologic unit that is saturated with water which contains sufficient permeability to yield the water to wells. Unconfined aquifer - answer-Water surface is at atmospheric pressures. Confined aquifer - answer-Aquifer that is confined by an impermeable material, such as clay or shale, resulting in the aquifer being under pressure. Permeability - answer-A measure of the ability to transmit fluids based on the material within the aquifer. Transmissivity - ans...

NR507 Advanced Pathophysiology Chapter 9: Alterations in Immunity and Inflammation 2 NR507 Advanced Pathophysiology Week 1 Chapter 9: Alterations in Immunity and Inflammation I. Inappropriate immune responses may be: A. Exaggerated against environmental antigens B. Misdirected against the host’s own cells C. Directed against beneficial foreign tissues D. Insufficient to protect the host II. Hypersensitivity: Allergy, Autoimmunity, and Alloimmunity Table 9.3 Immunologic Mechanism...

Current Research Topics in Applied Microbiology and Microbial Biotechnology. Contents Introduction ......................................................................................................................v Agriculture, Soil, Forest Microbiology.........................................................................1 Anti-oxidative stress enzymes in Pleurotus ostreatus.............................................................3 Beauveria bassiana mutants display a different pr...

Dosing starts with 4mg every 6-8 hours. For short-term treatment of spasticity. Decrease dosing in patients with renal impairment. Is an agonist at alpha-2 receptor sites. Reduces spasticity by increasing presynaptic inhibition of motor neurons. Does not affect skeletal muscle fibers or neuromuscular junction. Similar to clonidine, but much lower effects on blood pressure. Oral contraceptives decrease clearance. Cases of liver failure have been reported. AEs include dry mouth, drowsiness, asthen...

3 types of transport protein - uniport antiport symport-coupled Acid Fast Cell Walls: - - like gram positive cell walls - waxy lipid (mycolic aid) -mycobacterium Nocardia: resist the decolorization with acid alcohol Actinomycetes - look like molds but their cells are prokaryotic they have filamentous growth are some produce asexual spores Genus streptomyces produces feosmin which gives soil its "fresh dirt smell" also produces many different antibiotics Agostino Bas...