Olivia Teasdale Mrs. Gaspar SBI3U1 10/07/13 The Effect of Disinfectants and Antiseptics on Bacteria Growth Abstract The purpose of this lab was to determine the effect of disinfectants and antiseptics on bacterial growth. By observing the effects of 5 different inhibitors including alcohol‚ bleach‚ soap solution and distilled water‚ it was determined what antiseptic or disinfectant was able to best inhibit this kind of bacterial growth. Nutrient Agar was poured into a Petri dish with four quadrants
Premium Bacteria Microbiology Escherichia coli
antibiotics are continually used as bacteria grows exponentially more resistant to them then eventually society will fall back into an era without the readily use of antibiotics. Fortunately the superbug is not currently immune to all antibiotics as some forms of antibiotics can still treat the bacteria. In years to come the superbug will become increasingly hazardous to mainstream society as it grows faster than scientists can create medication for. Bacteria are the main source for all diseases
Premium Antibiotic resistance Bacteria
salmonella bacteria can life for a semi-long period outside a host body -once salmonella has entered the body (through contaminated foods or coming in contact with infected feces) the bacteria will begin to grow R -salmonella reproduces asexually through binary fission Binary fission- subdivision of a cell ‚ single stranded DNA replicates then attaches to opposite ends of the cell and then the cell pulls part -Through reproduction‚ two identical cells are formed from the original bacteria -Reproduction
Premium Bacteria
to the host when ingested in adequate amounts.” That fairly boring description hardly does justice to these tiny organisms‚ though. In fact‚ the word “probiotic” actually means “for life” and that’s an excellent description of these beneficial bacteria. Without sufficient supplies‚ your health can suffer in both mildly annoying and very serious ways. The constant wear tear on the intestinal walls that are acquired from the decomposition of foods a person might intake overtime can cause serious
Free Immune system Bacteria Gut flora
Bacteria are unicellular and ultra-microscopic organisms‚ yet they play an important role in nature. They are of tremendous importance to man. They play an important role in agriculture and medicine and are the basis of many industries. Some are beneficial to man directly or indirectly‚ others are very harmful as they cause various plant and animal diseases. Bacteria are considered as our friends and foes due to their beneficial and harmful activities. Their economic importance can be studied under
Premium Nitrogen Bacteria Fungus
Rebekah Worley February 21‚ 2012 Mitchell Section 4 Biol 311 Staining and Identifying Unknown Bacteria Introduction: The microbiology lab up to this point has been used to teach the students how to stain and identify bacteria. There are several types of staining through which the bacteria can be identified based on the color and shape. The staining methods used in the lab are Gram Staining‚ Capsule Staining‚ Endospore Staining‚ and Acid Fast staining. One of the most significant method of
Premium Microbiology Staining Bacteria
microorganisms‚ should not incite an allergic response in the body‚ should not upset the normal microbial population of various body sites‚ and should not foster the development of drug resistance. Penicillin. Penicillin prevents Gram-positive bacteria from forming peptidoglycan‚ the major component of the cell wall. Without peptidoglycan‚ internal pressures cause the bacterium to swell and burst. Penicillin is not one antibiotic‚ but a family of antibiotics. The family includes penicillin F
Premium Bacteria Penicillin Antibiotic
design. Microorganisms are very diverse and include all the bacteria and archaea and almost all the protozoa. They also include some members of the fungi‚ algae‚ and animals such as rotifers. Many macro animals and plants have juvenile stages which are also microorganisms. Some microbiologists also classify viruses as microorganisms‚ but others consider these as nonliving.[2][3] Most microorganisms are microscopic‚ but there are some bacteria such as Thiomargarita namibiensis[4] and some protozoa such
Premium Bacteria Microorganism
Outcome 1 - Understand the causes of infection 1 - Identify the differences between bacteria‚ viruses‚ fungi and parasites Bacteria - Bacteria are organisms made up of just 1 cell. They are capable of multiplying by themselves‚ as they have the power to divide. Bacteria exist everywhere‚ inside and on our bodies. Most of them are completely harmless and some of them are very useful. But some bacteria can cause diseases‚ either because they end up in the wrong place in the body or simply because
Premium Bacteria Infectious disease Infection
single service item d. D. Has had disease-causing germs reduced to safe levels 5. Bacteria are one of the most common causes of foodborne disease in a food establishment because: a. Under ideal conditions‚ they can grow very rapidly b. Bacteria are found naturally in many foods c. Bacteria can easily transferred from one source to another d. All of the above 6. Most of the bacteria that cause foodborne illness grow: a. With or without oxygen at an ideal temperature
Premium Foodborne illness Escherichia coli Bacteria