stain is a useful stain for identifying and classifying bacteria. The Gram stain is a differential stain that allows you to classify bacteria as either gram positive or gram negative. This gram stain technique was discovered by Hans Christina Gram in 1884. The gram stain procedure separates all bacteria into one of two groups - into gram-negative bacteria which do not stain purple and into gram-positive cells which does stain purple. Bacteria that decolorize easily are called gram-negative‚ and those
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IIR : 1. Inject mouse with live type IIIS bacteria - Mouse died and Type IIIS bacteria were recovered from the mouse’s blood. 2. Inject mouse with live type IIR bacteria - Mouse survived; No living bacteria isolated from the mouse’s blood. 3. Inject mouse with heat-killed type IIIS bacteria - Mouse survived; No living bacteria isolated from the mouse’s blood. 4. Inject mouse with live type IIR + heat-killed type IIIS cells - Mouse died; Type IIIS bacteria recovered from the mouse’s blood Copyright
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wherever you go because your hands will always catch bacteria and you will need to use a sanitizer in order to lessen their effect. If you share items used by many people‚ chances are you will catch an infection or get bacteria on your hands. In this case use a hand sanitizer to clean your hands to lessen. Most hand sanitizers are able to kill bacteria because of the high alcohol concentration‚ which dries bacteria‚ thus killing most of the bacteria on your hands. If you rub the sanitizer on your
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its DNA and is known as a common mutagen. Prediction: If UV light mutates the DNA of Serratia Marcescens then the red pigment colonies of the bacteria will no longer be produced. Independent Variable: Ultra Violet Radiation Dependent Variable: The color change of the bacteria Serratia Marcescens from red to white and the survival of the bacteria. Control: Nutrient agar plate with streaks of Serratia Marcescens without exposure to UV light. Results:
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Garlic and Bacteria Inhibition Does garlic keep vampires away? You can’t prove it scientifically‚ but many people do believe that garlic is good for what ails you — among other things it helps to ward off infection. Emily Koch noticed that her mom‚ who eats garlic‚ has fewer colds than other family members‚ so she decided to see if the stories about garlic are true. You can get a look at her project display in the figure. Figure: Project display for “Garlic and bacteria inhibition.” Hypothesis
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and many more because there is an unseen specimen called bacteria. Bacteria such as e-coli and staphylococcus are the most common bacteria that can cause illness to mankind. According to the World Health Organization (WHO) 3 out of 10 people are infected by bacteria that cause various diseases. This study was conducted to determine the anti-bacterial properties of duhat bark extract and it’s fighting ability against various types of bacteria. The bark of duhat is reported to have the capacity to treat
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and why disease-causing bacteria grow and spread‚ so that you are able to prevent food-borne diseases. Kinds of bacteria 1. Beneficial bacteria These are helpful to us. They can enhance flavor of butter‚ yoghurt‚ and cheese. 2. Undesirable bacteria These are bacteria that are responsible for food spoilage. 3. Disease-causing bacteria or pathogens These are bacteria that are most of the food-borne illnesses. The only way to protect food against pathogenic bacteria is by proper hygiene and
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Question: What genre of music affects the growth of bacteria the most? Problem: Effects of music on Bacterial Growth Hypothesis: If three genres of music were played to the same samples of bacteria‚ then the sample with pop music playing to it will have the most growth because pop music has a more positive and upbeat rhythm to it causing the bacteria to grow more. Variables: Control: The petri dish of bacteria without music and the samples of bacteria. Independent Variable: The type of music played to each sample
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young life that has been taken by the infection of a killer disease. It’s a painful thought to know that person never got to live to see their full potential. Diseases kill children every year. Many diseases are bacteria‚ inhaled by the victim‚ infecting several areas of the body. The bacteria lives and grows while its victim dies. Other diseases are caused by viruses; a non-living infection that attacks the disease-fighting system and other living cells. Children are much more able to be hurt by disease
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Definition noun‚ singular: eubacterium Literally means true bacteria‚ which includes all bacteria except for archaebacteria. Supplement These bacteria form the domain Bacteria‚ previously called domain Eubacteria. It is one of the three domain systems‚ the other two being domain Archaeabacteria (now Archaea) and domain Eukarya (the eukaryotes) -Eubacteria are also prokaryotic and reproduce asexually. -They are the most common bacteria found almost everywhere in the world. -Eubacteria have Peptidoglycan
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