1. How may the following growth and culture conditions affect the length of the lag phase? EXPLAIN YOUR ANSWERS. a) inoculum is from an old culture b) shifting cells from rich culture medium to a poorer one c) exponentialy growing culture is transferred into the same medium under the same growth conditions

1. How may the following growth and culture conditions affect the length of the lag phase? EXPLAIN YOUR ANSWERS. a) inoculum is from an old culture b) shifting cells from rich culture medium to a poorer one c) exponentialy growing culture is transferred into the same medium under the same growth conditions

Principles Of Pharmacology Med Assist

6th Edition

ISBN:9781337512442

Author:RICE

Publisher:RICE

Chapter15: Antibiotic Agents

Section: Chapter Questions

Problem 19RQ

See similar textbooks

Similar questions

Topic 1: Gram staining principle a. Describe the structure of peptidoglycan b. Describe in detail the architecture and structure of Gram negative cell wall structure c. Discuss how Gram positive cell wall is different from Gram negative wall structure. d. What are teichoic acid and their location? Provide the role of the teichoic acid in bacterial cells.
Biomedical Engincering Dept. Biocompatibility Hello sir, I know it takes precious Lab. Sheet-Level time. Please, I have a report on this Semester 1 subject. Only 5 papers within a Experiment Title: Cytotoxicity Test discussion solution. I want to solve the text of the keyboard. Thank you, Experiment no. 2 sir 1 12:34 PMA Objectives: Study the eytotoxicity and how it is measured. 1- Background Cytotoxicity can lead healthy living cells to three potential cellular fates. 1. Necrosis (accidental cell death): Rapid loss of membrane integrity and cell lysis 2. Apoptosis (programmed cell death): slower, more orderly, and genetically controlled 3. Cytostasis (a decrease in cell viability): cells remain alive but fail to actively grow and divide Importance of measuring cytotoxicity two major reasons 1. Either you want specific cells to die and look for an adequate compound/condition (cancer and immunotherapy) 2. Or you want to exclude cytoloxicity in specific cells (chemicals and drugs)…
Escherichia coli Mycobacterium phlei Bacillus Micrococcus subtilis luteus A B Figure 1: Agar Slant Cultures of Bacteria (Gary E. Kaiser, Ph.D.- Professor of Microbiology) . Observe and describe the colour of the slant cultures (A-D) in fig 1. ( . Define the following terms: pure culture, sterile medium, inoculum, aseptic technique, and colony. What is the name of the cultures that you used . Where they gram negative or positive Define the following terms: psychrophile, mesophile, thermophile, and hyperthermophile.
Worksheet 2. Draw it. Instruction: A bacterial culture was in log phase. At time x, an antibacterial compound was added to the culture. Draw the lines indicating addition of a bacterial compound and a bacteriostatic compound. Explain why the viable count does not immediately drop to zero at x? Time Log of number of cells
Hello, good day. I am having a problem answering this question and I need your help. Hoping for a response and thank you so much. Question: What are the general rules in grams staining classification of bacteria?
Purpose Solve the identity of an unknown bacterial specimen by creating a dichotomous key and using the staining, culturing and biochemical identification procedures you have learned about during the semester. Possible Organisms Alcaligenes faecalis Enterobacter aerogenes Enterococcus faecalis Escherichia coli Proteus vulgaris Pseudomonas aeruginosa Salmonella arizoniae Staphylococcus aureus Staphylococcus epidermidis Staphylococcus saprophyticus Streptococcusbovis Streptococcus pyogenes You must write up your OWN dichotomous key for all the possible unknown organisms listed on above. Writing this key requires you use the same type of reasoning used in the Dichotomous key lab. The first step of the key will be the Gram Stain. Subsequent steps will include biochemical tests only. Please help me with this question. Thank you so much !
I need help with the following question: After graduating from university you decide to celebrate your success with a trip to Thailand during the summer. You rent a moped to visit an archeological site on the outskirts of Bangkok. On the way there you hit a patch of gravel and wipe out, badly scraping your leg. Lurking in the dirt embedded in the scrape on your leg is Burkholderia pseudomallei, a soil bacterium endemic in Southeast Asia but not present in North America. Describe the cellular and molecular processes necessary for the activation of a primary adaptive immune response and the effector mechanisms produced to clear the infection. Be specific in terms of receptors and effector molecules specific to the type of pathogen.
INSTRUCTION: Answer the question properly Do not copy in Google, plagiarize checker will be used. QUESTION: Give specific examples of the ff.: (5 each) a.) gram (+) cocci, b.) gram (-) cocci, c.) gram (+) bacilli, d.) gram (-) bacilli, e.) gram (-) curved rod, f.) gram (-) coccobacilli.
Please answer fast What is this organism? And what other test could be done to confirm it's identification? 1. Gram stain - positive cocci, chains Hemolysis- gamma BE - positive NaCl - positive Catalase - weakly positive 2. Gram positive cocci, chains NaCl - negative BE - negative Hippurate - positive Hemoylsis - beta Catalase - negative
Question:- Define the bacterial categories that each type of bacteria belongs to. You only have to name the categoriesNOT the actual species of bacteria Note: there will be more than one category . A bacterial species that grows best at 37 degrees Cand when a small amount of oxygen is present
procedure/s in performing aseptic transfer of bacterial cultures in (include illustration) (3) agar plate to agar slant.
procedure/s in performing aseptic transfer of bacterial cultures in (include illustration) (2) agar slant culture to agar slant