Periplasm - Study guides, Class notes & Summaries

BIO 116 Final Exam Questions And Answers With Verified Study Solutions The transcription of what molecule is similar to leading strand synthesis in DNA replication? A) mRNA B) tRNA C) rRNA D) Primer E) Ribosomes A What statement regarding prokaryotic and prokaryotic chromosomes is incorrect? A) Most bacteria have a single, circular chromosome, while prokaryotic chromosomes can occur singly or in pairs. B) Prokaryotic chromosomes are located in the nucleus, which the prokaryotic chromos...

B-lactam resistance - Lactamases - enzymes that cleave beta lactam structure usually between carbon and nitrogen - makes it no longer a structural mimic and transpeptidase keeps cross-linking peptide side chains Antimicrobial Agents - Agents that kill microorganisms or inhibit their growth -cidal agents kill -static agents inhibit growth Household cleaners are disinfectants 14 out of 20 burn patients get pseudomonas infections from stainless steel tub cleaned with a quat.. why? - Quats d...

____ nucleotide pair length of DNA is present in a eukaryal nucleosome and ______ pair length of DNA is present in archaeal nucleosome - 160; 60 A characteristic that is unique to the domain Archaea is... a) a single, circular chromosome. b) DNA polymerase that is associated with the nucleoid. c) the ability to survive in extreme environments, like thermal springs. d) a cell membrane constructed from isoprene lipids. e) The presence of L-amino acids in the cell wall. - d) a cell membrane ...

MICRO EXAM 2 MCQS QUESTIONS WITH 100% CORRECT ANSWERS A+ GRADE Which of the following best describes how ATP is produced by oxidative phosphorylation? A. The PMF turns a rotor which pushes ADP and phosphate together. B. Electrons from the transport chain reduce ADP to ATP. C. Electrons from the transport chain turn a rotor to make ATP. D. The PMF adds a proton to ADP to make ATP. E. The PMF reduces NADH to ATP. - ANS-A. The PMF turns a rotor which pushes ADP and phosphate together...

A series of experimental proofs that could establish whether an organism was pathogenic and which disease it caused - Koch's Postulates a thin layer of peptidoglycan surrounded by an outer membrane containing lipopolysaccharides - Gram-negative A type of dormant cell that is generally resistant to heat, dessication, UV light and chemicals - Endospore Accumulations of high molecular weight polymers, synthesized from a nutrient available in relative excess - Granules Are prokaryotic or eu...

What are the different types of microscopy and staining and when are they used? CORRECT 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 what is occurring inside and outside of the ce...

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...

Classes of Prokaryotes - correct answer Archaea, Eubacteria Have call wall with PTG, periplasm, plasma membrane (in gram -), 1 chromosome (nucleoid), cytosol and no intracellular organelles. Reproduces by binary fission - correct answer prokaryotes Classes of Eukaryotes - correct answer Animals, plants, protists, fungi Have golgi apparatus, mitochondria, endocytic vesicles, endoplasmic reticulum, plasma membrane, a nucleus and membrane bound intracellular organelles. - correct answer Eu...

portion that anchors LPS molecule in lipid bilayer, can act as endotoxin when organism is killed & it is released into circulation (stimulate immune system to attack itself) - Lipid A Basic structure of peptidoglycan - Alternating NAG and NAM forming a glycan chain held together by terapeptide chain a thin layer of peptidoglycan surrounded by an outer membrane containing lipopolysaccharides - Gram-negative A type of dormant cell that is generally resistant to heat, dessication, UV light an...

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 ...