1. Colour Fastness to Light This method is intended for accessing the resistance of the colour of textiles to the action of daylight. Principle: A specimen of the textile is exposed to the light from a Xenon arc lamp under prescribed conditions‚ along with eight dyed wool standards. The fastness is assessed by compared the fading of the textile with that of the standards. Apparatus and Materials: - Blue standards - Humidity Test Control Fabric - Light fastness test apparatus containing
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HISTOPATHOLOGY: PAPANICOLAOU SMEAR PAPANICOLAOU SMEAR screening test for cervical cancer invented by George Papanicolaou(Father of Cytopathology)when he found out that cells in the cervix change before they become cancerous. recommended starting 21 y/o to 65 y/o Speculum – instrument used in the test Importance/Clinical Siginificance: For early detection of small tumors or pre-malignant cells in the cervix that may lead to cervical cancer. Specimen: cells in the cervix; the doctor or nurse starts
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of the activity. Record your observations. Part 2: Disinfecting Your Area to Use Live Organisms: Part 3: Viewing Live Organisms – Wet Mount Preparation Record your observations. Part 4: Direct Staining: Record your observations for each sample. Part 5: Indirect Staining: Examine the stained specimens and record your results. Questions: A. What are the advantages of using bleach as a disinfectant? The disadvantages? The advantages of using 70% alcohol? The disadvantages
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and purple and green phototrophic bacteria is? a) energy source b) cell wall type c) Oxygen production d) cell type e) color 17) You have isolated a gram-positive rod. What test will you perform next? a) gram stain b) lactose fermentation c) endospore stain d) flagella stain e) DNA fingerprint Short answers. Fill in the blanks or give a short answer for the following. 1) Your field of view through a microscope is 0.3 millimeters. If you have a worm that takes up half of your field of
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Exam 1 (Biol 120‚ Spring 2014) 2/21/14 12:00-12:50 pm 50 questions × 3 points = 150 points 1. Table right compares the shape and size of various prokaryotes. Which one best describes Escherichia coli? A) A B) B C) C D) D E) E 2. Which is the least permeable through the cell membrane? A) Proton B) Water C) Glycerol D) Tryptophan E) Glucose 3. Figure right shows three classes of transport systems. Which one is using energy? A) 1 B) 2 C) 3 D) 1 and 2 E) 1‚ 2 and 3 Use figure right to answer
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MEDICAL LABORATORY TECHNICIAN STUDENT HANDBOOK 2009-2010 TABLE OF CONTENTS Introduction .......................................................................................................................................- 1 Philosophy of the Program............................................................................................................- 1 Program Description ........................................................................................................
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Why should we study microbiology? Has there been any change in the quality of our life due to knowledge that we have acquired from the study of microbes? In other words what is the importance of microbiology in our life? We will try to find answers to some of these in the discussion below. The discussion on the role of microbes in human welfare may be divided under two headings - good and bad. Microbes as we know are capable of both good and bad as for as human life is concerned. We will now list
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Tetanus is a disease that is now considered rare in developed countries such as the United States‚ however it is still an issue in underdeveloped countries. Clostridium tetani is the obligate anaerobic gram positive endospore that is responsible for the disease tetanus. Clostridium tetani spores are ubiquitous. They can be found in soil‚ animal feces and manure. Clostridium tetani spores can tolerate temperature of more than 100 degrees Celsius. Tetanus is the only disease that is vaccine preventable
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RABIES Abstract: Each year‚ approximately 55‚000 individuals worldwide die from an infection due to the rabies virus. Rabies is a life-threatening disease caused by an RNA virus that is usually transmitted to humans through bites from rabid animals. More recently‚ reports of transmission by means of organ transplantation have been reported. Since human rabies is nearly 100% fatal if prophylactic measures are not followed‚ an increased awareness of who should receive prophylaxis and
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INTRODUCTION 1)Several specialized forensic fields are devoted to studying biological evidence at a crime scene. One of these fields is forensic palynology‚ the study of pollen and spore evidence to help solve criminal cases 2)A spore is another kind of reproductive structure that can develop into an adult that is found in certain protists (algae)‚ plants‚ and fungi 3)The use of both pollen and spores in forensic studies is based on Locard’s principle of exchange POLLEN PRODUCERS 1)Knowledge of
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