Periplasm - Study guides, Class notes & Summaries

Microimm 2500 Bacteriology Exam Questions With Verified Solutions Prokaryotes - answersmallest, simplest organisms on Earth; most abundant; includes bacteria & archaea; lack nucleus and complex organelles four phases of bacterial growth - answerlag; log; stationary; death bacteria reproductive mechanism - answerbinary fission bacterial generation time - answertime between generations (time for one division) reason stationary phase exists - answerbacteria reach a point where resources are ...

First Aid USMLE STEP 1- Microbiology Exam Review A+ 2023 Cell Wall Overall Picture - Compare *Gram (+) to Gram (-)* *Flagellum* on bacteria is composed of what? What is the function? - ANS-Composition: Proteins Function: motility *Pilus/Fimbria* on bacteria is composed of what? What is the function? - ANS-Composition: Glycoprotein Function: Mediate adherence of bacteria to cell surface, sex plus during conjugation. *Spore* formation is ONLY possible is what type of bacteria? Why is the ...

CMMB 443 Final Exam Actual Questions and Answers with complete solution Proteins are made in the cytoplasm but where are they needed in other parts of the cell? - answer- Cytoplasmic membrane proteins - Periplasmic proteins - Outer membrane proteins in G-ve cells - Extracellular proteins Define Translocation - answertransport of proteins into or through a membrane (e.g., into periplasm) Define Secretion - answerTransport of proteins to bacterial cell surface or to outside the cell Why ...

GMS 6121 Exam 3 Quizzes with 100% Correctly Solved Which of the following are NOT accurately described structural relationships of bacteria? a) gram positive: thick peptidoglycan and teichoic acid b) gram negative: outer membrane and LPS c) acid-fast: waxes and lipids d) wall-less: LOS and cholesterol Answer-d) wall-less do have cholesterol from the host but do not have LOS/LPS Why are gram negative bacteria resistant to bacitracin and vancomycin? a) porins b) they lack the targets for...

Bacterial Stress Response Exam Review Q&A 2023 What internal stress may bacteria encounter? - ANS-1. Stray electrons from the electron transport chain can cause oxidative damage. 2. Damaged proteins can cause weaknesses in the cell envelope. 3. Oxidative damage, stalling of DNA replication forks, physical forces can damage DNA, leading to mutations or genomic instability 4. Starvation for nutrients can lead to depletion of ATP, nucleotides, and amino acids, which can lead to stalling ...

MICR221 EXAM QUESTIONS WITH CERTIFIED ANSWERS What are the two classes of transport proteins - Answer-B-barrel and a-helicle bundle How do Amphiphatic Transport proteins get their name - Answer-They need to function in hydrophobic conditions (bilipid layer) and have a hydrophilic core for transport.. What are the 3 main types of active transporters - Answer-- Major facilitator Superfamily (MFS) - ATP binding cassette (ABC) superfamily - Group translocation (phosphotransferase system)...

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. correct answers 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 correct answers c Predict how Pasteur's conclusions on spontaneous generation with swan flasks would have changed if he w...

MIC 102 Final Exam Questions with Correct Answers What are the different types of microscopy and staining and when are they used? - Answer-Types of microscopy include: light microscopy- used primarily to get an idea of the form of the bacteria, used in combination with staining to get an idea of Gram positive and Gram negative protein. Green fluorescent is used to observe cell occurrences like binary fission and movement of proteins. Electron microscopy is very detailed at getting an idea of w...

MIC 102 Final Exam Questions with Correct Answers What are the different types of microscopy and staining and when are they used? - Answer-Types of microscopy include: light microscopy- used primarily to get an idea of the form of the bacteria, used in combination with staining to get an idea of Gram positive and Gram negative protein. Green fluorescent is used to observe cell occurrences like binary fission and movement of proteins. Electron microscopy is very detailed at getting an i...

cell wall, flagella, pili, capsule, endospores, s-layer correct answers Bacterial structures important for pathogenesis cell wall of Gram-positive bacteria correct answers .Thick mesh like peptidoglycan layer .Contains secondary wall polymers, teichoic acid and lipoteichoic acid .May also have C- polysaccarides (e.g. M protein of Streptococci .One membrane (phospholipids and proteins) Lipoteichoic acid (weaker endotoxins) have fatty acid and anchored in in cytoplasmic membrane Inclus...