A pure culture contains - Study guides, Class notes & Summaries

Complete Test Bank The Human Body in Health and Illness 7th Edition by Barbara Herlihy Chapter 01: Introduction to the Human Body Herlihy: The Human Body in Health and Illness, 7th Edition MULTIPLE CHOICE 1. What is the branch of science that studies how the body functions? a. Anatomy b. Histology c. Pathology d. Physiology ANS: D 2. Which word comes from the Greek word meaning “to dissect”? a. Anatomy b. Histology c. Pathology d. Physiology ANS: A 3. Which of the follow...

BIO 250 Final Exam A pure culture A) is sterile. B) is a population of identical cells. C) is made of a precisely defined chemical medium. D) contains one microbial cell. - ANSWER b Microbial cells first evolved on Earth approximately ________ _______ years ago. A) 1.6 to 1.8 million B) 7.0 to 7.2 million C) 3.8 to 3.9 billion D) 10.5 to 11.5 billion E) None of the above - ANSWER ...

How did Jenner demonstrate concept of vaccination? - He developed vaccination for smallpox by inoculating individuals with cowpox (creating immunity for smallpox) How does understanding microorganisms help us? - helps use prevent food spoilage, prevents disease occurrences, and we can better understand how aseptic techniques can be used to prevent contamination and infection Define microorganisms - organisms that are too small to be be seen with the unaided eye How do microorganisms benefi...

Culture CORRECT ANSWER A nutrient medium growing one or more species of microorganisms Pure culture (anexic) CORRECT ANSWER When a culture contains only one species of microorganism -Simplifies experimental design and interpretation of results -Must be made up of individual cells of a single genetic makeup (genotype) -A colony is usually derived from a single cell and thus can be used to inoculate medium and generate this Wire (platinum) inoculating loop CORRECT ANSWER Used to transfer ...

Define aseptic technique - Answer-Methods and procedures used in the laboratory to prevent contamination of the work area, the worker and the cultures with microorganisms. The Dutch merchant who made and used quality magnifying lenses to see and record microorganisms was? - Answer-Antonie van Leeuwenhoek Which form of medium is typically used to grow stock cultures? - Answer-agar slants Which form of medium is used to obtain large quantities of fresh cells/bacteria? - Answer-Broth medium T...

Microbiology Lab Exam # 1 Questions and Answers Considering the cultures used to inoculate each medium in this exercise, how many different microbial types should you expect to see in/on each medium? (1.4) -Answer- You should only have 1 if using good sterile technique. A successful aseptic transfer will have only micrococcus lutes growth- this would be a pure culture You were asked to describe differences in appearance of growth in each culture, if present. In which medium was this the mo...

biosafety level 1 CORRECT ANSWER Well-characterized agents which do not cause disease in healthy humans -ex: e. coli BSL2 CORRECT ANSWER Moderate potential hazard to humans and the environment (cause mild disease and/or are difficult to contract in the laboratory) -ex: HIV, Zika BSL3 CORRECT ANSWER Can cause serious and potentially lethal disease via inhalation -Mycobacterium tuberculosis BSL4 CORRECT ANSWER Agents that are easily transmitted via aerosols and cause severe to fatal di...

Straighterline Micro 250 final prep Questions & Answers with 100% Verified Answers _____ solution was introduced in the late 19th century for preventing gonococcal infections in a newborn's eyes after exposure to the mother's infected birth canal. Select one: a. Merthiolate b. Triclosan c. Betadine d. Silver nitrate e. Zinc oxide - Silver nitrate A bacterium that you isolated from pond water appears to use light for energy. Based upon this information, you inoculate th...

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...

Bio 250 straighterline test 1 prep Questions with 100% Verified Answers A classification system based on mutual similarity that involves comparing as many characteristics as possible is called a __________ system. Select one: a. phylogenetic b. phyletic c. phenetic d. determinative systematic - c. phenetic A diagram of the three domains (Bacteria, Archaea, Eukarya) proceeding from the Last Universal Common Ancestor would show Archaea Select one: a. as the original cells f...