not exhibit any internal mobility (cytoplasmic streaming). The cytoplasm also lacks organelles such as mitochondria‚ golgi apparatus or endoplasmic reticulum. Cytoplasm stains uniformly in young cultures. Recent studies suggest that some bacteria (Bacillus subtilis) possess cytoskeleton.
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BIOL 1020 Lab Assignment: Virtual Microscopy Start by re-saving this file as follows: lab_surname_virtualmicroscopy.rtf‚ substituting your own surname. Type your responses to the questions below where indicated. Remember to save your work frequently. Viewing Magnification‚ Field of View‚ and Specimen Size 1. On the UD Virtual Compound Microscope‚ examine the onion root tip slide at 400X viewing magnification. Ensure that the image is centred. What is the approximate size of an onion root
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months to 2 years‚ depending on the type of infection Tuberculosis was popularly known as consumption for a long time. Scientists know it as an infection caused by M. tuberculosis. In 1882‚ the microbiologist Robert Koch discovered the tubercle bacillus‚ at a time when one of every seven deaths in Europe was caused by TB. Because antibiotics were unknown‚ the only means of controlling the spread of infection was to isolate patients in private sanitoria or hospitals limited to patients with TB—a
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Question 1 2 out of 2 points Shock resulting from massive bleeding is best classified as: Selected Answer: 3. Hypovolemic Correct Answer: 3. Hypovolemic Question 2 2 out of 2 points Children born with a small cranium and jaw‚ a thin upper lip‚ and palpebral abnormalities‚ and have a lower than normal IQ demonstrate classic signs of: Selected Answer: 1. Fetal alcohol syndrome Correct Answer: 1. Fetal alcohol syndrome Question 3 2 out of 2 points All of the following are
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Use of Enzymes in Food Industry - Food industry utilizes a variety of enzymes for processing of various foods‚ e.g.‚ production of various types of syrups from starch or sucrose (a- and β- amylases‚ glucamylase‚ pullulanase‚ invertase‚ and glucose isomerase)‚ meat/protein processing using proteases‚ removal of glucose and or molecular oxygen (O2) using glucose oxidase and catalase‚ use of lactase in dairy industry and use of enzymes in fruit juice and brewing industries. Glucose oxides are obtained
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is a very dangerous and contagious bacterial infection‚ known as Shigella bacillus‚ which affects the lining of the colon and intestinal tract (Margolis 2011). This bacterial disease has been known to wipe out armies since ancient times‚ but was majorly recognized during the Civil War from 1861 to 1865 (Civil War Society 2002). The severe abdominal pain‚ fever and the painful bowel movements accompany the Shigella bacillus infection which caused doctors to try find a solution to this epidemical disease
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ASEPTIC TECHNIQUES AND SOURCES OF MICROBIAL CONTAMINATION. Introduction The spread of infections has come to a point where it has become catastrophic. Aseptic technique is the method used to prevent contamination of infections. It is widely used in hospitals‚ pharmacy‚ and pharmaceutical industries and in laboratories. Different establishments have come up with more ways to improve infection control. In hospitals health care acquired infections are costing the NHS £1 Billion a year and
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There were eight antibiotics used for this experiment; chloramphenicol (C)‚ erythromycin (E)‚ fusidic acid (FC)‚ oxacillin (OX)‚ novobiocin (NO)‚ penicillin G (PG)‚ streptomycin (S)‚ and tetracycline (T). The mode of action of Chloramphenicol is the inhibition of protein synthesis. Chloramphenicol irreversibly binds to a receptor sit on the 50S subunit of the ribosome on the bacteria that inhibits the enzyme peptidyl transferase. This inhibition results to the prevention of the transfer of amino
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estimates indicate that one in six or 48 million people are stricken with a foodborne illness each year‚ resulting in 3000 deaths. Although products such as fruits and vegetables are increasingly being implicated in foodborne illnesses related to Escherichia coli O157:H7 and Salmonella‚ red meat and poultry remain the predominant products contributing to outbreaks and recalls. Accurate and rapid detection of foodborne pathogens is a critical component of the process to reduce risks associated with pathogen-contaminated
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difficult to work with and could not tolerate anyone telling him that his theories were wrong” (Robert 2). Anthrax was the first disease that Koch put his time in to study. Pollender‚ Rayer and Davaine discovered the Anthrax Bacillus. Koch wanted to prove that the bacillus was the cause of the disease. He used Mice to help conduct the experiment. His conclusion was the mice were killed when injected with the blood of a anthrax disease farm animal and healthy blood from farm animals survived. “By
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