Quorum sensing Study guides, Class notes & Summaries

frederick griffith - Answers studied streptococcus pneumoniae in mice - hypothesized that bacteria could "transfer" information to each other - S strain -> host death - R strain -> not fatal - pre-killing S strains prevents illness - killed S plus live R is fatal conjugation - Answers horizontal gene transfer requiring cell to cell contact - two cells brought together by pilus on the donor - relaxase assists in DNA transfer - requires presence of transferable plasmids -> co...

Microbiology with Diseases by Body System 5TH Edition, Bauman Test Bank COMPLETE GUIDE. Essential amino acids are amino acids that cannot be synthesized by an organism and so must be provided as nutrients. Answer: TRUE Bloom's Taxonomy: Knowledge Section: Other Anabolic Pathways Learning Outcome: 5.29 10) The pentose phosphate pathway generates all the necessary precursors for nucleotide biosynthesis. Answer: FALSE Bloom's Taxonomy: Knowledge Section: Other Anabolic Pathways Learnin...

What are Quorum sensing molecules? correct answer: Molecules used for Pseudomonas test What is the warranty period for FETCHDx? correct answer: 1 year What is the benefit of mail-in testing for pet diagnostics? correct answer: Convenience and early diagnosis What is FETCHDx? correct answer: Stress-free diagnostic testing for pets Where is FETCHDx sold? correct answer: Through veterinarians only What is the process for FETCHDx testing? correct answer: Owner collects and mails...

Genome all the genetic material the organism contains Vertical transmission -from parent to offspring -same species (binary fission) Horizontal transmission -transfer of small pieces of DNA from one cell to another -different or same species 1) transformation 2) conjugation 3) transduction Transformation The process of importing free DNA into bacterial cells, cells need to be competent to do this (dead bacteria to live) Dr. Griffith -studied streptococcus ...

1 BIOS 1108 MODULE 3 EXAM | QUESTIONS & ANSWERS (VERIFIED) | LATEST UPDATE | GRADED A+ Cell Signaling Pathway Correct Answer: "RaceCAR" - Reception of signaling molecule (ligand) to specfiic receptor - protein-to-protein Communication (transduction); ex: receptor-to-enzyme, kinase-totarget -signal Amplification typically with second messengers (cAMP, etc) -sgnal response nuances: tissue/cell-type specific responses, signal crosstalk Direct Signaling Correct Answer: communicati...

MICROBIOLOGY FINAL TEST BANK| COMPREHENSIVE SOLUTIONS UPDATEMICROBIOLOGY FINAL TEST BANK| COMPREHENSIVE SOLUTIONS UPDATE Penicillin controls bacterial growth by: A) preventing synthesis of the lipopolysaccharide layer B) inhibiting protein synthesis C) preventing cross-link formation in peptidoglycan D) preventing generation of the proton motive force preventing cross-link formation in peptidoglycan Reproduction via binary fission leads to what type of growth under optimal conditions: A...

MICROBIOLOGY FINAL TEST BANK| COMPREHENSIVE SOLUTIONS UPDATEMICROBIOLOGY FINAL TEST BANK| COMPREHENSIVE SOLUTIONS UPDATE Penicillin controls bacterial growth by: A) preventing synthesis of the lipopolysaccharide layer B) inhibiting protein synthesis C) preventing cross-link formation in peptidoglycan D) preventing generation of the proton motive force preventing cross-link formation in peptidoglycan Reproduction via binary fission leads to what type of growth under optimal conditions: A...

AMR Exam 1 Questions and Answered 2023 Side effects of tetracyclines - Photosensitivity - Liver damage - Tooth discoloration Side effects of B-lactams - Allergic reactions, itchy skin & rashes - Liver damage (carbapenems) side effects of quinolones - Photosensitivity - Neurotoxicity Side effects of aminoglycosides - Kidney damage - Hearing loss Side effects of rifampin and isoniazid - Liver damage - Neurotoxicity Side effects of chloramphenicol - S...

BIO 207 EXAM2 PRACTICE TEST FROM STUDY GUIDE 49 Questions with Verified Answers Which of the following molecules links glycolysis with the TCA cycle, and also serves as a precursor for many biosynthetic products? a. malate b. citrate c. oxaloacetate d. acetyl-CoA e. succinate - CORRECT ANSWER d. acetyl-CoA What methods do microorganisms NOT use to minimize energy for biosynthesis? a. Inhibit or kill nutritional competitors by making antimicrobials b. Loss of genes encoding enzymes f...

MIC 205 Exam 3 Questions with All Correct Answers Psychrophiles - Answer-cold-loving microbes Mesophiles - Answer-those growing best between 20 degrees and 40 degrees celcius; the human pathogens are in this group Thermophiles - Answer-heat loving microbes minimum growth temperature - Answer-the lowest temperature at which the species will grow optimum growth temperature - Answer-the temperature at which the species grows best maximum growth temperature - Answer-the highest temperatur...