What is pure culture - Study guides, Class notes & Summaries

In what ways are microorganisms important to humans? correct answers They're important in fermentation reactions, they produce biofuel Studying microorganisms help with vaccination and antibiotic therapy We use microorganisms to purify our water Used in pasteurization so that food is safe to eat What is a bacterial colony and how is one formed? correct answers A colony forms by placing a single microbial cell on a solid nutrient medium where it can grow and divide into millions of cells. ...

Straighterline Microbiology Exam Questions And Answers motility semisolid media shows what? isolating/culturing bacteria solid media is best for? synthetic; defined What are the terms for a media whose exact chemical compositions are known? differential media allows growth of several types of microbes and displays visible differences among those microbes selective media suppress unwanted microbes and encourage desired microbes reducing media a culture medium ...

What are the requirements of a fastidious microbe? A fastidious microbe is an organism with complex growth requirements and will not grow without then. Enriched medias thus contain these specific and essential nutrients required for the growth of a particular subset of microorganisms. What is the name of the process of spreading a bacterial culture onto a petri dish? Plating. Plating microbes can be done using a sterile loop, a sterile swab, or a sterilized wire loop. Each device is simpl...

BIOS 280 Test 2 Questions and Answers 100% Solved What is Koch's third postulate? Correct Ans-Cells from a pure culture of the suspected organism should cause disease in a healthy animal

In the nitrogen cycle, which of the following steps involves removal of nitrogen from the atmosphere by bacteria? Nitrogen Fixation If enough H+ ions are added to pure water to raise the H+ concentration of the solution to ten times higher than the original concentration, what is the resulting OH- concentration of the solution? 10-8 M Fungi are able to reproduce asexually by creating conidiospores and sporangiospores. Which of the following is an accurate explanation for why it is advantag...

Portage Learning BIOD 171 Microbiology Lecture Exam Key 1-6 Exams 1. What are the two major types of nucleic acids and their roles? DNA- deoxyribonucleic acid RNA- Ribonucleic acid DNA- Cellular life has DNA and a role that DNA has is long-term storage of information, it holds the characteristics of living organisms. RNA- Is the carrier of information in form of amino acid sequence. It converts the information in the DNA and synthesizes proteins Tru...

bacteria What is 99% of the biomass of the microbiome composed of? a biofilm What do bacteria often exist in? FALSE; it is 99% bacteria, but there are also: - viruses - fungi - protozoa - archaea **complex dynamic community in BOTH health and disease (~1000 microorganisms, 700 species of bacteria) TRUE or FALSE: The oral microbiome is composed only of bacteria. in disease, you get an increase in the diversity of the bacteria What visual observation can be made about the differenc...

prevents microbes from entering the ear. - What is the function of earwax? Pathology: - the study of disease. Etiology: - the cause of a disease. Pathogenesis: - the development of disease. Infection: - invasion or colonization of the body by pathogens. Disease: - an abnormal state in which the body is not performing normal functions. Normal microbiota: - permanently colonize the host and do not cause disease under normal conditions. Transient microbiota: - may be present for days, weeks...

Test Bank For Microbiology Fundamentals A Clinical Approach 4th Edition By Cowan Chapter 02 Tools of the Laboratory: The Methods for Studying Microorganisms Multiple Choice Questions 1. The Five I's of studying microorganisms include all of the following except A. inoculation. B. incubation. C. infection. D. isolation. E. identification. SM Objective: 08.02 Use aseptic and pure culture techniques to enrich for and isolate microorganisms. SM Topic: Module 08 Microbiology Skills...

PSC 101 Exam 1 Latest 2024 Graded A+ Cultural Ideals Political Culture: DEFINITION: shared set of values, beliefs, and attitudes of a particular people 3 Core values: make up the American Culture Liberty Equality Democracy Political Efficacy Political efficacy is the belief that one has the ability to influence what government does. Citizenship Citizenship: derived from the Greek ideal, refers to "enlightened political engagement." Nature of Political Conflict- 2 sources C...