Microbiology: An Introduction (13th Edition)
13th Edition
ISBN: 9780134605180
Author: Gerard J. Tortora, Berdell R. Funke, Christine L. Case, Derek Weber, Warner Bair
Publisher: PEARSON
expand_more
expand_more
format_list_bulleted
Question
Chapter 8, Problem 5R
Summary Introduction
To determine:
The reason for no synthesis of protein in E.Coli when iron is absent.
Introduction:
E.Coli is a gram-negative and rod-shaped bacteria. It is a facultative anaerobe. It is found in the intestine of warm-blooded animals. E.coli causes infection if consumed from uncooked food or contaminated water.
Expert Solution & Answer
Want to see the full answer?
Check out a sample textbook solution
Students have asked these similar questions
Aspirin inhibits the cyclooxygenase pathway and blocks the synthesis of certain factors. Name these factors.
In acute lymphoblastic leukemia, the cancerous white blood cells typically lack the enzyme asparagine synthetase. Why is the administration of asparaginase an eff ective therapy for this type of cancer?
Sydney Brennen isolated Salmonella typhimurium mutants that were implicated in the biosynthesis of tryptophan and would not grow on minimal medium supplemented with intermediates in tryptophan biosynthesis, some mutants were able to grow while others remained unable to grow. Review the data attached to order the biosynthetic pathway by both enzymatic step and by intermediate biomolecule. Label the step impacted by each of the mutant cell lines.
Chapter 8 Solutions
Microbiology: An Introduction (13th Edition)
Ch. 8 - Briefly describe the components of DNA, and...Ch. 8 - DRAW IT Identify and mark each of the following on...Ch. 8 - Match the following examples of mutagens. Column A...Ch. 8 - The following is a code for a strand of DNA. a....Ch. 8 - Prob. 5RCh. 8 - Identify when (before transcription, after...Ch. 8 - Which sequence is the best target for damage by UV...Ch. 8 - You are provided with cultures with the following...Ch. 8 - Why are mutation and recombination important in...Ch. 8 - NAME IT Normally a commensal in the human...
Ch. 8 - Match the following terms to the definitions in...Ch. 8 - Match the following terms to the definitions in...Ch. 8 - Feedback inhibition differs from repression...Ch. 8 - Bacteria can acquire antibiotic resistance by all...Ch. 8 - Suppose you inoculate three flasks of minimal...Ch. 8 - Plasmids differ from transposons in that plasmids...Ch. 8 - Mechanism by which the presence of glucose...Ch. 8 - The mechanism by which lactose controls the lac...Ch. 8 - Two offspring cells are most likely to inherit...Ch. 8 - Which of the following is not a method of...Ch. 8 - Nucleoside analogs and ionizing radiation are used...Ch. 8 - Replication of the E. coli chromosome takes 40 to...Ch. 8 - Pseudomonas has a plasmid containing the mer...Ch. 8 - Ciprofloxacin, erythromycin, and acyclovir are...Ch. 8 - HIV, the virus that causes AIDS, was isolated from...Ch. 8 - Human herpesvirus-8 (HHV-8) is common in parts of...
Knowledge Booster
Similar questions
- Copper is a cofactor in several enzymes, including lysyl oxidase and superoxide dismutase.Ceruloplasmin, a deep-blue glycoprotein, is the principal copper-containing protein in blood. It isused to transport Cu2+ and maintain appropriate levels of Cu2+ in the body’s tissues.Ceruloplasmin also catalyzes the oxidation of Fe2+ to Fe3+, an important reaction in ironmetabolism. Because the metal is widely found in foods, copper deficiency is rare in humans.Deficiency symptoms include anemia, leukopenia (reduction in blood levels of white blood cells),bone defects, and weakened arterial walls. The body is partially protected from exposure toexcessive copper (and several other metals) by metallothionein, a small, metal-binding protein thatpossesses a large proportion of cysteine residues. Certain metals (most notably zinc and cadmium)induce the synthesis of metallothionein in the intestine and liver.In Menkes syndrome intestinal absorption of copper is defective. How can affected infants…arrow_forwardGive the substrate for each of the following enzymes: A. Succinate Dehydrogenase_ B. 3-Phosphoglycerate mutase C. Glyceraldehyde-3-phosphate dehydrogenasearrow_forwardDescribe the two models that explain the binding of allosteric enzymes. Use either model to explain the binding ofoxygen to hemoglobin.arrow_forward
- Explain why mutations of the Arg residue in Gsα that is ADPribosylated by cholera toxin are oncogenic mutations.arrow_forwardBefore b-oxidation, fatty acids are converted to theirCoASH derivatives. Explain why this reaction isnecessary.arrow_forwardDescribe the cyclooxygenase pathway and the effect of asprin on this pathway..arrow_forward
- How is cigarette smoking related to elastase function? Methionine sulfoxide is formed by cigarette smoke in the antitrypsin protein, which leads to the full manifestation of the disease in individuals heterozygous for emphysema. Oxidation of methionine 358 by cigarette smoke of the elastase inhibitor active site leads to an increased inhibition of elastase and subsequent overaccumulation of mucus in the lungs. The inhibitor of elastase is axidized by cigarette smoke so elastase doesn't function properly in healthy individuals. Cigarette smoke modifies the elastase methionine residues such that the enzyme activity is blocked.arrow_forwardIdentify the two components of the nitrogenase complex and describe their specific tasks.arrow_forwardExplain how genetic mutations of phosphoribosyl pyrophosphate synthetase causing superactivity lead to excessive uric acid production.arrow_forward
- Describe the mechanism of the nitrogenase complex in which N2 is converted to NH3.arrow_forwardArgininosuccinic aciduria is a condition that results when the urea-cycle enzyme argininosuccinase is deficient. Argininosuccinate is present in the blood and urine. Suggest how this condition might be treated while still removing nitrogen from the body.arrow_forwardWhy can it be said that the enzymatic action is highly specific?arrow_forward
arrow_back_ios
SEE MORE QUESTIONS
arrow_forward_ios
Recommended textbooks for you
